hydrogen is a liquid below what temperature

User: Hydrogen is a liquid below what temperature? a. 100 degrees C c. -183 degrees C b. -253 degrees C d. 0 degrees C Weegy: Hydrogen is a liquid below 253 degrees C. User: What is the boiling point of oxygen? a. 100 degrees C c. -57 degrees C b. 8 degrees C d. -183 degrees C Weegy: The boiling point of oxygen is -183 degrees C.

Potassium can be solid, liquid or gas. At normal room temperature and atmospheric pressure it is a solid. Above 63.3oC it is a liquid and above 760oC it is a gas. 32 people found this useful.

Interesting Facts about Hydrogen. 1  Scientists estimate that Hydrogen makes up over 90 percent of all the atoms in the universe. 2  It is the only element that can exist without neutrons. 3  Hydrogen becomes a liquid at very low temperature and high pressure. 4  Around 10 percent of the mass of the human body is hydrogen.

Hydrogen cyanide. Hydrogen cyanide (HCN), sometimes called prussic acid, is a chemical compound with the chemical formula HCN. It is a colorless, extremely poisonous and flammable liquid that boils slightly above room temperature, at 25.6 °C (78.1 °F).

First, Methane [CH4] is a chemical compound composed of four Hydrogen molecules attached to a single Carbon molecule. It is a colorless, odorless, and tasteless gas at normal temperatures and pressures, and has many beneficial uses.ethane is a type of alcohol.The gas evolved from it is known as methane gas.It is used in industrial chemical process and can be used in refrigerated liquid.

condensation. 1  Change from a gas to a liquid. 2  The process in which liquid water becomes water vapor. 3  The gas state of water, Water in the form of a gas, as in steam or moisture in the atmosphere.  hydrogen bonds form between the hydrogen atoms of one molecule and the oxygen molecules of other water molecules.

A further temperature decrease below the boiling point eventually results in mixtures of liquid and solid hydrogen or slush hydrogen, SLH 2. Slush offers the advantages of a higher density and a prolongation of the storage time of the cryogen as the solid melts and absorbs heat. A safety risk is

User: Which one of the following substances is a liquid fuel used in rocket engines? Weegy: There are several possibilities. The largest NASA rockets used liquid hydrogen (with liquid oxygen as the oxidizer). Hydrazine is one of the more powerful fuels, but it is dangerous and difficult to handle.

Gas. For hydrogen to become a liquid, you need to cool it down to 20.28 K, which is -252.87 degrees Celcius, or -434.45 degrees Fahrenheit if that is more your style. 6 people found this useful.

Propane Liquid: Liquefied Petroleum Gas (LPG), is a fuel in liquid form at or below its boiling point (-44 degrees F) and when it is stored under pressure, otherwise it turns to gas (or vapor).

With the replacement of up to 20% of portland cement with fly ash, the. concrete will take longer to reach design strength, in most cases 56 days. with fly ash vs. 28 days without it. The greatest temperature reduction is achieved by injecting liquid.

If you require medium-range amounts of hydrogen, we offer bulk liquid deliveries that are made by truck and stored in hydrogen tanks located at your site. We also deliver hydrogen in high-pressure gas tube trailers to provide flexibility for supply pressure and flow rate.

With the replacement of up to 20% of portland cement with fly ash, the. concrete will take longer to reach design strength, in most cases 56 days. with fly ash vs. 28 days without it. The greatest temperature reduction is achieved by injecting liquid. nitrogen into the concrete.

Under normal conditions, krypton is a colorless, tasteless, odorless gas. Its density at normal temperature and pressure is about 0.5 oz per gallon (3.7 g per liter), making it nearly three times heavier than air. At extremely low temperatures, krypton may exist as a liquid or a solid.

Inhalation hazards result not only from exposure to hydrogen fluoride gas, but also from fumes arising from concentrated hydrogen fluoride liquid. Hydrogen fluoride gas is lighter than air. Even fairly low airborne concentrations of hydrogen fluoride produce rapid onset of eye, nose, and throat irritation.

What are stars made of? Basically, stars are big exploding balls of gas, mostly hydrogen and helium. Our nearest star, the Sun, is so hot that the huge amount of hydrogen is undergoing a constant star-wide nuclear reaction, like in a hydrogen bomb.

What temperature does gas become a liquid? The boiling poing is the temperature where a liquid changes phase to gas and the temperature where a gas condenses to a liquid. Edit

The hydrogen gas that makes up most of the atmosphere slowly changes to liquid with depth as the pressure increases. Below the liquid hydrogen rests the heavier liquid helium. Deep in the depths of the body of Saturn, the hydrogen is then under tremendous pressure, and is transformed to liquid metallic hydrogen.

Give a reason for the fact that water, the hydride of oxygen, is a liquid at room temperature while the hydride of sulfur (the next member of Group 16) is a gas? (1.) Hydrogen fluoride is a liquid at room temperature and a weak acid but hydrogen chloride is a gas and a strong acid. Explain these facts. (2.) For similar reasons water and ammonia have unexpected properties.

Yes, and you do it by striking a spark. Hydrogen gas is highly flammable, when mixed with oxygen, it will burn very easily and quickly, leaving water vapor as a by-product. If this water vapor is cooled, it will condense into liquid water. The thing is, hydrogen gas is not commonly found in nature.

Hydrogen fluoride is a colorless, fuming liquid or gas with a strong, irritating odor. It is usually shipped in steel cylinders as a compressed gas. Hydrogen fluoride readily dissolves in water to form colorless hydrofluoric acid solutions; dilute solutions are visibly indistinguishable from water.

Not all gases are flammable. eg carbon dioxide, nitrogen or helium. Flammable gases are those which react easily with oxygen in the air to cause combustion... such as hydrogen, methane or propane etc. Even flammable liquids are flammable only because they give off a flammable gas at temperatures below. Gasoline evaporates at room temperature into a mixture of flammable gases which are far more flammable than the liquid itself.

Computer Water Cooling Kits-Liquid Cooling Systems. If you're looking to drop your PC's temperature more than a few degrees than water cooling may be exactly what you need!

Hydrogen gas is evolved in the reaction between zinc and dilute sulfuric acid. A table showing the volume of hydrogen gas produced during the experiment is shown below. What is the average rate of evolution of the hydrogen gas.

Boiling point The boiling point of a substance is the temperature at which it can change its state from a liquid to a gas throughout the bulk of the liquid. A liquid may change to a gas at temperatures below the boiling point through the process of evaporation.

At room temperature hydrogen is a gas. It is a colorless, tasteless and odorless gas. It is the lightest gas. It is insoluble in water. It is highly inflammable and burns with blue flame forming water. Liquefication temperature of hydrogen is -252oC. Bond energy of H-H is 431 Kj/mole. Electro negativity of hydrogen is 2.1.

The temperature at which a liquid becomes a gas and a gas becomes a liquid. 100°C is the. boiling point of water at atmospheric pressure; 2750 °C is the boiling point of iron. Above these temperatures, the material is a gas, below, it is a liquid. Solid:

The chemical symbol of hydrogen is H. It is an element with atomic number 1, this means that 1 proton is found in the nucleus of hydrogen. Hydrogen is the lightest, simplest and most commonly found chemical element in the Universe, making up around 75% of its elemental mass. Hydrogen is found in large amounts in giant gas planets and stars, it plays a key role in powering stars through fusion reactions. Hydrogen is one of two important elements found in water (H 2 O). Each molecule of water is made up of two hydrogen atoms bonded to one oxygen atom. In 1766, during an acid metal reaction, Henry Cavendish first formally recognized hydrogen. In 1781 he also found that hydrogen produces water when burned.

Transferring Liquid. Two persons should be present when liquid hydrogen is being used or transferred, or a container is moved. This does not apply where specially trained employees of the liquid hydrogen supplier, who routinely handle liquid hydrogen, are involved. Hydrogen is normally vaporized and used as a gas.

Liquefied natural gas, or LNG, is natural gas in its liquid form. When natural gas is cooled to minus 259 degrees Fahrenheit (-161 degrees Celsius), it becomes a clear, colorless, odorless liquid.LNG is neither corrosive nor toxic.iquefied natural gas, or LNG, is natural gas in its liquid form. When natural gas is cooled to minus 259 degrees Fahrenheit (-161 degrees Celsius), it becomes a clear, colorless, odorless liquid. LNG is neither corrosive nor toxic.

Hotter still is the core. In the sun this is thought to be 10 - 20 million degrees. These temperatures are due to the pressure caused by gravity trying to compress the star. It has to be this temperature for fusion of hydrogen to take place.

1. About 10 percent of the weight of living organisms is hydrogen – mainly in water, proteins and fats. 2. Liquid hydrogen has the lowest density of any liquid. 3. Solid, crystalline hydrogen has the lowest density of any crystalline solid. 4. Hydrogen is the only element that can exist without neutrons.

The word hydrogen comes from the Greek word hydro (meaning water) and genes (meaning creator). Hydrogen gas has the molecular formula H 2. At room temperature and under standard pressure conditions, hydrogen is a gas that is tasteless, odorless and colorless.he chemical symbol of hydrogen is H. It is an element with atomic number 1, this means that 1 proton is found in the nucleus of hydrogen. Hydrogen is the lightest, simplest and most commonly found chemical element in the Universe, making up around 75% of its elemental mass.

, Degree level applied chemistry + 20yr experience in corrosion prevention and water treatment. 1  H2O - that's what the chemical formula of water states. So the answer is 1 (and 2 of hydrogen) 2  the chemical name for water is h2o 1 hydrogen to oxygen that is as water is made.

Hydrogen is a liquid below what temperature? was asked by Shelly Notetaker on May 31 2017. 426 students have viewed the answer on StudySoup. View the answer on StudySoup. Sign Up Login

The boiling point of a liquid is defined as the temperature at which the liquid will change from a liquid to a gas.he boiling point of a liquid is defined as the temperature at which the liquid will change from a liquid to a gas.

The bulk of Jupiter is fluid hydrogen in two forms or phases, liquid molecular hydrogen on top and liquid metallic hydrogen below; the latter phase exists where the pressure is high enough, say 3-4 million atmospheres.

For example water is a liquid for 100 degrees (Celsius). For most temperatures it is either a solid or a gas. At low pressures, the range of temperature for a liquid to exist is smaller. That is why water boils at less than 100OC at high altitudes.

Water exists naturally on the planet in all three states. When the temperature of the water is below freezing (32 degrees Fahrenheit), it is a solid. Between the freezing point and the boiling point, it is a liquid. And above the boiling point (212 degrees Fahrenheit), it is a gas. Aside from the three states, water has a number of unique properties.

In exceptional cases the sulfate content may exceed 5% SO 3 and in some sources the sulfate content has exceeded 7% SO 3 .ASTM C618 limits the sulfate content of fly ash to 5% SO 3 when thematerial is to be used in concrete.ffect of fly ash LOI on water demand of concretes proportioned for equal slump (adapted from Sturrup 1983). 220180170160150140Free water (kg/m 3)0 4 8 12 16 20Loss-on-ignition (% by mass)Reference concreteFly ash concrete300250Free water (lb/yd 3) Figure 8. Concrete in thin-section.

The melting point is the temperature at which a solid will turn into a liquid, and the boiling point is the temperature at which a liquid will turn into a gas. + 19 others found this useful.

This highlights the density problem for pure hydrogen: there is actually about 64% more hydrogen in a liter of gasoline (116 grams hydrogen) than there is in a liter of pure liquid hydrogen (71 grams hydrogen). The carbon in the gasoline also contributes to the energy of combustion.

Hydrogen is the simplest element known to exist. An atom of hydrogen. has one proton and one electron. Hydrogen has the highest energy. content of any common fuel by weight, but the lowest energy content. by volume. It is the lightest element and a gas at normal temperature. and pressure.

Water is the chemical substance with chemical formula H. 2O; one molecule of water has two hydrogen atoms covalently bonded to a single oxygen atom. Water is a tasteless, odorless liquid at ambient temperature and pressure, and appears colorless in small quantities, although it has its own intrinsic very light blue hue.

1 APPEARANCE: Hydrogen fluoride is a colorless fuming liquid below 67°F (19.4°C), or a colorless gas. 2  When hydrogen fluoride is combined with water it is known as hydrofluoric acid, a colorless liquid, which in low concentrations is visually indistinguishable from water.

Hydrogen is also added to fats and oils, such as peanut oil, through a process called hydrogenation. Liquid hydrogen is used in the study of superconductors and, when combined with liquid oxygen, makes an excellent rocket fuel. Hydrogen combines with other elements to form numerous compounds.

No. Liquid metallic hydrogen only forms when hydrogen is subjected  to extreme pressure. Hydrogen is present in trace amounts in  Earth's atmosphere in gas form, under low p…ressure. The core is  composed primarily of iron. Liquid metallic hydrogen likely exists  in the gas giants Jupiter and Saturn.

4 degrees C turns out to be the temperature at which liquid water has the highest density. If you heat it or cool it, it will expand. The expansion of water when you cool it to lower temperatures is unusual, since most liquids contract when they're cooled.

It's easy to generate hydrogen gas at home or in a lab using common household materials. Here's how to make hydrogen safely. One of the easiest ways to obtain hydrogen is to get it from water, H2O. This method employs electrolysis, which breaks water into hydrogen and oxygen gas.

hydrogen price per ton hydrogen price in industrial pure hydrogen price hot-sales liquid hydrogen price hot-selling liquid hydrogen price industrial hydrogen price methyl hydrogen price ethylene hydrogen price liquid hydrogen price 99 liquid hydrogen chloride liquid hydrogen fluoride buy liquid hydrogen tank liquid hydrogen uses liquid hydrogen More ...

Hydrogen is the first element in the periodic table. It is the simplest possible atom composed of one proton in the nucleus which is orbited by a single electron. Hydrogen is the lightest of the elements and is the most abundant element in the universe. At standard temperature and pressure hydrogen is a colorless, odorless, and tasteless gas.

What is the temperature of the gas turn to liquid? Every gas has a different liquidation temperature based on what element it is. Hydrogen has a liquidation point of 423.17 degrees below zero F.

Buy Compressed Hydrogen Gas or Liquid Hydrogen (H2) Buy Compressed Hydrogen Gas or Liquid Hydrogen (H2) We offer compressed hydrogen gas and liquid hydrogen (H2) in a variety of purities and concentrations. See the chart below and download the spec sheets and safety data sheets for more information on buying liquid hydrogen and hydrogen gas from Praxair.

What is in space? Basically, stars are big exploding balls of gas, mostly hydrogen and helium. Our nearest star, the Sun, is so hot that the huge amount of hydrogen is undergoing a constant star-wide nuclear reaction, like in a hydrogen bomb.

Hydrogenation Definition: Hydrogenation is a reduction reaction which results in an addition of hydrogen (usually as H2). If an organic compound is hydrogenated, it becomes more 'saturated'. Hydrogenation has many applications, but most people are familiar with the reaction as the one used to make liquid oils into semi-solid and solid fats.

Answer 2: Because the molecular mass of Hydrogen is 1gram/mole, there is 1 mole of hydrogen in 1 gram of hydrogen atoms.For every mole, there are 6.02*10^23 atoms so in 1 gram of hydrogen there are 6.02*10^23 hydrogen atoms (in scientific notation) this is equal to 602000000000000000000000 hydrogen atoms.

Hydrogen is the chemical element with atomic number 1. It is represented by the symbol H. At standard temperature and pressure, hydrogen is a colorless, odorless, nonmetallic, tasteless, highly flammable diatomic gas with the molecular formula H2. With an atomic weight of 1.00794 u, hydrogen is the lightest element.

Rating Newest Oldest. Best Answer: Hydrogen, like water, can exist in 3 states....Solid, Liquid and Gas Its temperature as a solid is −259.14 °C' Hydrogen melts to liquid at −252.87 °C. It boils and vaporises at -252.125 °C Just cooling or compressing Hydrogen won't liquefy or freeze it.

Liquid hydrogen or slush hydrogen may be used, as in the Space Shuttle. However liquid hydrogen requires cryogenic storage and boils around 20.268 K (−252.882 °C or −423.188 °F). Hence, its liquefaction imposes a large energy loss (as energy is needed to cool it down to that temperature).

The universal emergence of atomic hydrogen first occurred during the recombination epoch. At standard temperature and pressure, hydrogen is a colorless, odorless, tasteless, non-toxic, nonmetallic, highly combustible diatomic gas with the molecular formula H 2.

Anhydrous Hydrogen Fluoride (HF). Depending upon the pressure and temperature where it is being handled, anhydrous fluoride (100% hydrofluoric acid) can be either a colorless, fuming liquid or a colorless gas.

Answer   The boiling point of liquid hydrogen is 20.268 K (-252.88 °C or -423.184 °F)    The freezing point of hydrogen is 14.025 K (-259.125 °C or -434.

A: Helium naturally occurs in a gaseous state. It is the only element whose liquid state cannot be solidified by reducing its temperature. It retains its liquid state until absolute zero and can only be solidified by increasing the pressure. Helium is tasteless, colorless, odorless gas.

Temperature-pressure combination for. simultaneous existence as solid, liquid or gas . . . . . . . . . . . . . . . . . . . . . . .-69 .83° F, 60 .4 psig. Colorless, odorless, nonflammable slightly acidic, refrigerated liquid .

Hydrogen gas, with the molecular formula H2, is a colorless, odorless, tasteless and highly combustible diatomic gas. The earth's atmosphere contains less than 1 part per million of hydrogen gas [48]. H2 is rather less active and behaves as an inert gas in the absence of catalysts or at body temperature.

The temperature T in degrees Fahrenheit (F) is equal to the temperature T in Kelvin (K) times 9/5, minus 459.67:

Confidence votes 11.4K. At STP (standard temperature and pressure) hydrogen is a gas. It cools to a liquid at -423 °F, which is only about 37 degrees above absolute zero. Eleven degrees cooler, at -434 °F, it starts to solidify.

The melting point of a substance is the temperature at which it changes from. a solid to a liquid. a liquid to a solid. a gas to a solid. a solid to a gas. The boiling point of a substance is the temperature at which it changes from. a liquid to a gas. a liquid to a solid. a gas to a solid. a solid to a liquid. When a gas is compressed it changes state into a. liquid.

As it cools below 35 degrees, water condenses on it. 3) The car roof continues to cool. As it cools below 32, the water on the roof freezes. This is what you see when you look at your car early in the morning.

Hydrogen Data. • Hydrogen is colorless and odorless —. Detectors are needed. • Hydrogen flames are virtually invisible in daylight —. Detectors are needed. • Hydrogen disperses 3.8 times as fast as natural gas. • 1 kg of hydrogen has the same energy content as. 1 gallon (3.2 kg) of gasoline.

Ammonium Sulfate is also a favorite source of Nitrogen and Sulfur with many liquid blend producers. The most economical growth of grasses and rangeland is frequently achieved from the use of Ammonium Sulfate. The raw materials used in the production of Ammonium Sulfate are Ammonia and Sulfuric acid.

What is neon's state of matter? Full Answer Hydrogen's state of matter can change when the temperature changes, becoming a liquid at temperatures between minus 423.18 and minus 434.49 degrees Fahrenheit. It becomes a solid at temperatures below minus 434.49 F. Due to its high flammability, hydrogen gas is commonly used in combustion reactions, such as in rocket and automobile fuels.

When you combine two atoms of hydrogen with one atom of oxygen you get a water molecule H 2O. Like nitrogen, hydrogen can also be condensed to a liquid that freezes at – 259°C (-434°F) and boils at -252°C (-423°F). Hydrogen is one of the most common elements in our universe.The sun and many stars are made of hydrogen. It can also be found in the earth’s crust.very compound has certain features and a chemical formula. Water, for example, is a compound that has two hydrogen atoms and one oxygen atom in it. Its chemical formula is H 2O. When sodium (Na) combines with chlorine (Cl) you get a compound called salt (NaCl).

Hydrogen as water (H2O) is absolutely essential to life and it is present in all organic compounds. Hydrogen is the lightest gas. Hydrogen gas was used in lighter-than-air balloons for transport but is far too dangerous because of the fire risk (Hindenburg).

Because hydrogen does not occur naturally in the environment, hydrogen fuel must be derived from other substances that contain hydrogen such asmethanol, gasoline, natural gas, and water. Most hydrogen that is produced today comes from natural gas.

Liquid nitrogen is nitrogen in a liquid state at an extremely low temperature.

Hydrogen is cold but it won't make zero. Nothing will make the temperature 0 so molecules will always be in motion. The Kinetic Theory should be a law. It will need lots of hydrogen gas. Hydrogen is cold but it won't make zero. Nothing will make the temperature 0 so molecules will always be in motion.

Other molecules, as small as water (eg CO2), change from liquid to gas at temperatures far below that of water. It is also the Hydrogen bond which is responsible for the large amount of heat energy needed to convert water from liquid to gas.

The compound hydrogen chloride has the chemical formula H Cl. At room temperature, it is a colorless gas, which forms white fumes of hydrochloric acid upon contact with atmospheric humidity. Hydrogen chloride gas and hydrochloric acid are important in technology and industry.

As the temperature of the liquid water lowers, it's going to start to form ice. What's going to happen is the water molecules are going to become more ordered because every hydrogen bond that can form is going to form.

Hydrogen is found naturally in the molecular H2 form. To exist as a liquid, H2 must be cooled below hydrogen's critical point of 33 K. However, for hydrogen to be in a fully liquid state without boiling at atmospheric pressure, it needs to be cooled to 20.28 K (−423.17 °F/−252.87 °C).

Hydrogen is high in energy, yet an engine that burns pure hydrogen produces almost no pollution. NASA has used liquid hydrogen since the 1970s to propel the space shuttle and other rockets into orbit.

Answers.com® is making the world better one answer at a time. You cool the oxygen until it has a temperature of 200 degrees (Celcius) under zero. Then you distillate it. That's how to make liquid oxygen.

Atomic hydrogen was the first element in existence and the first element of the Periodic Table; it can be considered the father of all the elements. Molecular Hydrogen. Molecular hydrogen gas, or H 2 (g), is the primary form in which hydrogen is found.

Liquid hydrogen is non-corrosive. Special materials of construction are not required to prevent corrosion. However, because of its extremely cold temperature, equipment must be designed and manufactured of material, which is suitable for extremely low temperature operation.

Hydrogen cyanide is a colorless or pale-blue liquid at room temperature. It is very volatile, readily producing flammable and toxic concentrations at room temperature. Hydrogen cyanide gas mixes well with air, and explosive mixtures are easily formed.

Ammonia is a colourless gas with a characteristic pungent smell. It is lighter than air, its density being 0.589 times that of air. It is easily liquefied due to the strong hydrogen bonding between molecules; the liquid boils at −33.3 °C (−27.94 °F), and freezes at −77.7 °C (−107.86 °F) to white crystals.

Hydrogen is the lightest, simplest and most commonly found chemical element in the Universe, making up around 75% of its elemental mass. Hydrogen is found in large amounts in giant gas planets and stars, it plays a key role in powering stars through fusion reactions.Hydrogen is one of two important elements found in water (H 2 O). Each molecule of water is made up of two hydrogen atoms bonded to one oxygen atom.In 1766, during an acid metal reaction, Henry Cavendish first formally recognized hydrogen.In 1781 he also found that hydrogen produces water when burned.ydrogen can exist as a liquid under high pressure and an extremely low temperature of 20.28 kelvin (−252.87°C, −423.17 °F). Hydrogen is often stored in this way as liquid hydrogen takes up less space than hydrogen in its normal gas form. Liquid hydrogen is also used as a rocket fuel.

The main job of the tank is to hold about 535,000 gallons of super cold liquid hydrogen and liquid oxygen. The lower portion of the tank holds the liquid hydrogen, which is the fuel for the engines. The second-coldest known chemical, it is stored in the tank at minus 423 degrees Fahrenheit.

Ice is the solid form that liquid water takes when it is cooled below 0 degrees Celsius (32 degrees Fahrenheit). Ice melts due to the chemical properties of water. There are more hydrogen bonds between the molecules of ice than in water. Ice begins to melt when its temperature exceeds 0 degrees Celsius and hydrogen bonds between water molecules break.

At the temperature and pressure of Jupiter's interior hydrogen is a liquid, not a gas. It is an electrical conductor and the source of Jupiter's magnetic field. This layer probably also contains some helium and traces of various  ices .

Hydrogen chloride. Hydrogen chloride, (HCl), a compound of the elements hydrogen and chlorine, a gas at room temperature and pressure. A solution of the gas in water is called hydrochloric acid. 1  Hydrogen chloride may be formed by the direct combination of chlorine (Cl2) gas and hydrogen (H2) gas; the reaction is rapid at temperatures above 250° C (482° F). 2  Hydrochloric acid is prepared by dissolving gaseous hydrogen chloride in water.

Molecules in the gas state move much faster than their liquid or solid states. Depending on the temperature and pressure, molecules can exist in three states: gas, liquid, o … r solid. At high temperatures and low pressures, the gas state is favored.

Specification. The specifications for a particular project may define a required fly ash content. The percentage of fly ash required may range from as little as 10% to as high as 50% or 60%, depending upon the intention of the engineer.Failure to adhere to the specified level of fly ash may result in concrete of substandard properties and may not be suitable for the intended purpose. Optimum Ash Curves.here plain cement concrete may require 300# of water to provide the necessary degree of workability, fly ash concrete will use significantly less water, and may only require 90% of this, or 270# of water.

When you combine two atoms of hydrogen with one atom of oxygen you get a water molecule H 2O. Like nitrogen, hydrogen can also be condensed to a liquid that freezes at – 259°C (-434°F) and boils at -252°C (-423°F). Hydrogen is one of the most common elements in our universe.

When two or more atoms of the same element or a different element combine they form a compound. ie. Hydrogen and Oxygen can combine and form a compound (hydrogen dioxide) … or two hydrogen atoms can combine and form a compound. 1 person found this useful.

The chemical symbol of hydrogen is H. It is an element with atomic number 1, this means that 1 proton is found in the nucleus of hydrogen. Hydrogen is the lightest, simplest and most commonly found chemical element in the Universe, making up around 75% of its elemental mass.ydrogen is found in large amounts in giant gas planets and stars, it plays a key role in powering stars through fusion reactions. Hydrogen is one of two important elements found in water (H 2 O). Each molecule of water is made up of two hydrogen atoms bonded to one oxygen atom.

Examples include butane, acetylene, methane and hydrogen. Flammable liquids are identified as liquids that have a flashpoint (minimum temperature needed for the liquid to produce a vapor with enough of a concentration to ignite) below 100 degrees Fahrenheit (F). There is an exception to this definition. If any of the components of the mixture have flashpoints of 100 deg. F or higher, then the material is classified as combustible rather than flammable. Another way to identify flammable liquids is by class. It is important to remember that with flammable liquids that it is the vapor coming off of the liquid that will ignite and burn, not necessarily the liquid itself.

Gas to Liquid: Water change from a gas (water vapor) to a liquid through the process of condensation. The gas cools and loses energy which forces the particles-hydrogen and oxygen in the case of water-to change state from a gas to a liquid.Liquid to Solid: When water as a liquid turns to water as a solid (ice) it goes through the process of freezing. The liquid cools below the freezing point and loses energy.ydrogen and oxygen are elements. What that really means is that when an atom, the fundamental unit that makes up everything, has 1 proton (a positively charged sub-atomic particle) it is a hydrogen atom, and when it has 8 protons, it is an oxygen atom. Hydrogen gas is two hydrogen atoms bonded together, H 2.

Silver's state of matter at room temperature is a solid. It begins to melt, becoming a liquid, at 1571 degrees Fahrenheit, and it begins to boil and to become a gas at 357 … 1 degrees Fahrenheit.

Hydrogen is reduced by elements that are less electronegative to form compounds in which its oxidation number is -1. Properties and Formation of Hydrogen. At room temperature, hydrogen is a colorless, odorless gas with a density only one-fourteenth the density of air. Small quantities of H 2 gas can be prepared in several ways. 1.

When oxygen is cooled to a very low temperature. (around 300 degrees below zero Fahrenheit), it. becomes a liquid. In the liquid form, large amounts. of oxygen can be stored in a container at quite low. pressure. This provides not only a large storage. capacity, but also allows for filling and refilling of. a smaller unit from the large unit. To remain in the liquid form, the oxygen must. continue to be kept very cold.

Answer to: Hydrogen is a liquid below what temperature? By signing up, you'll get thousands of step-by-step solutions to your homework questions.... for Teachers for Schools for Companies

Portland-fly ash cement contains up to 40% fly ash under ASTM standards (ASTM C595), or 35% under EN standards (EN 197-1). The fly ash is pozzolanic, so that ultimate strength is maintained. Because fly ash addition allows a lower concrete water content, early strength can also be maintained.

1 Most cars get their power from an engine that uses a combustion chemical reaction. 2  Rockets are propelled by the reaction that occurs when liquid hydrogen and liquid oxygen are combined. 3  When one reaction causes a sequence of reactions to occur this is sometimes called a chain reaction.

BUT, because the concentration of hydrogen ions in water is ALWAYS the same as the concentration of hydroxide ions in water, liquid water will ALWAYS be neutral! The table below gives the value for the ion product for water, Kw, at various temperatures.

Hydrogen's state of matter is gas at standard conditions of temperature and pressure. Hydrogen condenses into a liquid or freezes solid at extremely cold... Hydrogen's state of matter is gas at standard conditions of temperature and pressure. Hydrogen condenses into a liquid or freezes solid at extremely cold temperatures. Hydrogen's state of matter can change when the temperature changes, becoming a liquid at temperatures between minus 423.18 and minus 434.49 degrees Fahrenheit. It becomes a solid at temperatures below minus 434.49 F.Due to its high flammability, hydrogen gas is commonly used in combustion reactions, such as in rocket and automobile fuels.

Hydrogen occurs as a gas that you can’t see and can’t smell. It is about 14 times lighter than air. When you combine two atoms of hydrogen with one atom of oxygen you get a water molecule H 2O. Like nitrogen, hydrogen can also be condensed to a liquid that freezes at – 259°C (-434°F) and boils at -252°C (-423°F). Hydrogen is one of the most common elements in our universe. The sun and many stars are made of hydrogen.

At STP (standard temperature and pressure) hydrogen is a gas. It cools to a liquid at -423 °F, which is only about 37 degrees above absolute zero. Eleven degrees cooler, at … -434 °F, it starts to solidify.

Hydrogen can exist as a liquid under high pressure and an extremely low temperature of 20.28 kelvin (−252.87°C, −423.17 °F). Hydrogen is often stored in this way as liquid hydrogen takes up less space than hydrogen in its normal gas form. Liquid hydrogen is also used as a rocket fuel.ydrogen is found in large amounts in giant gas planets and stars, it plays a key role in powering stars through fusion reactions. Hydrogen is one of two important elements found in water (H 2 O). Each molecule of water is made up of two hydrogen atoms bonded to one oxygen atom.

Mercury and water are both liquid at room temperature and 1 atmosphere of pressure. You can make water boil, however, by putting it in a vacuum! Boiling is the process of a substance changing from liquid to gas phase.or Hydrogen, the boiling point is -253 degrees Celsius; for Mercury it is 357 degrees Celsius, and for Iron it is 2,750 degrees Celsius. From these numbers you can see that at room temperature (and indeed for nearly any temperature found on Earth) Hydrogen is a gas, Mercury is a liquid, and Iron is a solid.

Properties: Common hydrogen has a molecular weight of 2,01594 g. As a gas it has a density of 0.071 g/l at 0ºC and 1 atm. Its relative density, compared with that of the air, is 0.0695. Hydrogen is the most flammable of all the known substances. Hydrogen is slightly more soluble in organic solvents than in water. Many metals absorb hydrogen.

IEEE Xplore - Coal ASH fusion temperature model based on … A coal ash fusion temperature model is constructed based on support vector machine(SVM). The compositions of coal ash are employed as the inputs and the ash fusion...

Atmosphere. The composition of Jupiter's atmosphere is similar to that of the sun—mostly hydrogen and helium. Deep in the atmosphere, the pressure and temperature increase, compressing the hydrogen gas into a liquid. At depths about a third of the way down, the hydrogen becomes metallic and electrically conducting.he composition of Jupiter's atmosphere is similar to that of the sun—mostly hydrogen and helium. Deep in the atmosphere, the pressure and temperature increase, compressing the hydrogen gas into a liquid. At depths about a third of the way down, the hydrogen becomes metallic and electrically conducting.

Hydrogen fluoride is a gas at room temperature. Its solution in water is known as hydrofluoric acid. Anhydrous hydrogen fluoride is the starting material for the production of most fluorine compounds.

Why does water under a vacuum boil at room temperature? Dominic - Yes, we do tend to think of water existing as a solid below zero degrees, as a liquid up to 100 degrees and then boil into steam. But, in fact, those are three different states that water can take at any temperature. It's just that, energetically, it prefers to be in particular states at different temperatures.

He showed me a thermos full of colorless, liquid nitrogen. It was about -321 degrees Fahrenheit. We can’t see it with our eyes, but I found out about 78 percent of our air is made up of nitrogen in its gas form. You may have heard about states of matter, like liquids, solids and gases.

Hydrogen Bonding   Water is a liquid at room temperature due to the presence of hydrogen bonds between water molecules. The state of a molecule is determined by intermo … lecular forces, such as dipole-dipole interactions, Van der Waals forces (also called London dispersion forces), and hydrogen bonds.t 4oC the density is approximately 1000 kg/m3 (or 1 g/cm3) - more acurately though the density would be 999.97 kg/m3 (or … 0.9997 g/cm3). Values for the density of pure water (H2O) have been calculated over a wide range of temperatures. At room temperature (22oC) The density of water is 997.77 kg/m3 (or 0.99777 g/cm3).

Hydrogen is a colorless, odorless, tasteless gas. Its density is the lowest of any chemical element, 0.08999 grams per liter. By comparison, a liter of air weighs 1.29 grams, 14 times as much as a liter of hydrogen.very molecule of water (H 2 O) contains two hydrogen atoms and one oxygen atom. Hydrogen is also found in many rocks and minerals. Its abundance is estimated to be about 1,500 parts per million. That makes hydrogen the tenth most abundant element in the Earth's crust.

Water is the chemical substance with chemical formula H 2 O; one molecule of water has two hydrogen atoms covalently bonded to a single oxygen atom. Water is a tasteless, odorless liquid at ambient temperature and pressure, and appears colorless in small quantities, although it has its own intrinsic very light blue hue.

Each molecule of water is made up of two hydrogen atoms bonded to one oxygen atom. In 1766, during an acid metal reaction, Henry Cavendish first formally recognized hydrogen. In 1781 he also found that hydrogen produces water when burned.

At room temperature, ammonia, N … H3, is a gas. It becomes a liquid if cooled below -28 degrees F, and will freeze into a solid once below -108 degrees F. Household ammonia is liquid at room temperature; it is a solution of ammonia in water.

Valence: 1. Hydrogen Properties: Hydrogen is the most abundant element in the universe. The heavier elements were made from hydrogen or from other elements that were made from hydrogen. Hydrogen is a colorless, odorless, combustible gas. Hydrogen gas is so light and diffusive that uncombined hydrogen can escape from the atmosphere.

Hydrogen and oxygen combine in the ratio of 1:8 means that 1g of hydrogen gas requires 8g of oxygen gas to form water. Therefore, 3g of Hydrogen gas will require = 8 * 3 = 24 g of oxygen. Thus, 24g of the oxygen gas would be required to react completely with 3g of hydrogen gas to form water.

Liquid and gas ammonia expand and contract with changes in pressure and temperature. For example, if liquid anhydrous ammonia is in a partially filled, closed container it is heated from 0 F to 68 F, the volume of the liquid will increase by about 10 percent.mmonia is extremely soluble in water and is frequently used as a water solution called aqua ammonia. Ammonia chemically combines with water to form ammonium hydroxide. Household ammonia is a diluted water solution containing 5 to 10 percent ammonia.

For Hydrogen, the boiling point is -253 degrees Celsius; for Mercury it is 357 degrees Celsius, and for Iron it is 2,750 degrees Celsius. From these numbers you can see that at room temperature (and indeed for nearly any temperature found on Earth) Hydrogen is a gas, Mercury is a liquid, and Iron is a solid.

Best Answer: hydrogen has a colorless flame, and oxygen doesn't burn ... Well, hydrogen can't explode without oxygen present: 2H2(g) + O2(g) --> 2H2O(g) However ...

Hydrogen is a colorless, odorless, tasteless gas. Its density is the lowest of any chemical element, 0.08999 grams per liter. By comparison, a liter of air weighs 1.29 grams, 14 times as much as a liter of hydrogen. Hydrogen changes from a gas to a liquid at a temperature of -252.77°C (-422.99°F) and from a liquid to a solid at a temperature of -259.2°C (-434.6°F). It is slightly soluble in water, alcohol, and a few other common liquids.

Hydrogen is certainly not a colorful chemical element. But it has one surpassing feature. The hydrogen atom happens to be the smallest and lightest of all atomic elements. At temperatures above minus 423 degrees Fahrenheit, it boils and becomes the lightest of the gases.ydrogen is certainly not a colorful chemical element. But it has one surpassing feature. The hydrogen atom happens to be the smallest and lightest of all atomic elements. At temperatures above minus 423 degrees Fahrenheit, it boils and becomes the lightest of the gases.

Water is not like other liquids. It isn't, well, a normal liquid. In other liquids, the basic principle holds true that heated liquids expand and cooled liquids contract. But water doesn't exactly work the same way. Water does expand when heated and contracts when cooled, but not at all temperature levels. Water has a magic range where the rules do not apply. The main reason for this difference is its makeup. Water is made up of hydrogen and oxygen, and they exist as a loose bond. The range that is different is between 0 and 4 degrees Celsius. Water at any other temperature would expand when it is heated, and contract when cooled. However, at 4 degrees Celsius, water is at its most contracted state, but it isn't frozen. It doesn't freeze until zero degrees Celsius.

We offer compressed hydrogen gas and liquid hydrogen (H 2) in a variety of purities and concentrations. See the chart below and download the spec sheets and safety data sheets for more information on buying liquid hydrogen and hydrogen gas from Praxair.

Hydrogen gas has the molecular formula H 2. At room temperature and under standard pressure conditions, hydrogen is a gas that is tasteless, odorless and colorless. Hydrogen can exist as a liquid under high pressure and an extremely low temperature of 20.28 kelvin (−252.87°C, −423.17 °F). Hydrogen is often stored in this way as liquid hydrogen takes up less space than hydrogen in its normal gas form. Liquid hydrogen is also used as a rocket fuel.

Interesting Facts about Hydrogen. 1  Scientists estimate that Hydrogen makes up over 90 percent of all the atoms in the universe. 2  It is the only element that can exist without neutrons. 3  Hydrogen becomes a liquid at very low temperature and high pressure. Under extremely high pressure it can become a liquid metal.

Hydrogen is the simplest element of all, and the lightest. It is also by far the most common element in the Universe. Over 90 percent of the atoms in the Universe are hydrogen. In its commonest form, the hydrogen atom is made of one proton, one electron, and no neutrons. Hydrogen is the only element that can exist without neutrons. Hydrogen is a colorless, odorless gas which exists, at standard temperature and pressure, as diatomic molecules, H2.

The change from a gas to a liquid state is called condensation. It normally occurs when the temperature of a gas is lowered.

Liquefied natural gas, or LNG, is natural gas in a liquid form that has been cooled to minus-259 degrees. The liquid is warmed and turned to gas, which is used for heating and cooking as well as electricity generation.

Relevance. Rating Newest Oldest. Best Answer: negative 219 degrees celcius, when oxygen or any atom is cooled energy is taken away from it, as it cools in will condense into a liquid(negative 183 celcius) , with further removal of energy or continous cool down, the oxygen will become a solid.Source(s): brianaxenchuk · 8 years ago.Thumbs up.elevance. Rating Newest Oldest. Best Answer: negative 219 degrees celcius, when oxygen or any atom is cooled energy is taken away from it, as it cools in will condense into a liquid(negative 183 celcius) , with further removal of energy or continous cool down, the oxygen will become a solid.

The gas cools and loses energy which forces the particles-hydrogen and oxygen in the case of water-to change state from a gas to a liquid. Liquid to Solid: When water as a liquid turns to water as a solid (ice) it goes through the process of freezing. The liquid cools below the freezing point and loses energy.

Hydrogen is found in many places including in gas planets, stars and in water. Hydrogen is one of the two elements found in water, which is created with two hydrogen atoms that have bonded to one... Hydrogen is found in many places including in gas planets, stars and in water. Hydrogen is one of the two elements found in water, which is created with two hydrogen atoms that have bonded to one oxygen atom.

Ammonia. Ammonia is a colorless gas which has a strong irritating and very alkaline in nature. Ammonia is used in industry as a refrigerant and in the manufacture of fertilizers such as ammonium nitrate and ammonium sulfate. Domestically, ammonia is widely used as a cleaning agent.The chemical formula for ammonia molecule is NH 3. One nitrogen atom is covalently bonded to three hydrogen atoms.mmonia. Ammonia is a colorless gas which has a strong irritating and very alkaline in nature. Ammonia is used in industry as a refrigerant and in the manufacture of fertilizers such as ammonium nitrate and ammonium sulfate. Domestically, ammonia is widely used as a cleaning agent.

A quantity of gas has absolute value of 400kPa and absolute temperature of 110 degrees kelvin When temperature of the gas is raised to 235 degrees kelvin what is the new pressure of the gas? What is the relationship between the kelvin temperature and the pressure of gas? The are directly proportional.

• Ash fusion. • Ash viscosity. • Ash chemistry. • Ash petrography. • Ash resistivity. ASH TESTING ASH FUSION Understanding the behavior of coal ash at high temperature is critical in determining ideal coals for steam power generation. The ash fusion test gives an indication of the softening and melting behavior of coal ash at high temperatures within the boiler. Ash fusion temperatures are determined by heating a prepared sample of molded coal in a high-temperature furnace to temperatures exceeding 1,000 oC in both reducing and oxidizing conditions. The cone or pyramid of molded ash is monitored as the temperature

Hydrogen is the absolute smallest of all elements, so small that four billion, laid end to end, could fit on the head of one pin! At room temperature hydrogen is a clear gas. Hydrogen gas (H 2) is a molecule made of two hydrogen atoms bonded together.

Hydrogen is used to power a range of new alternate fuel vehicles. The chemical energy of hydrogen is converted by a combustion method similar to current engines or in a fuel cell which produces water and electricity by reacting hydrogen with oxygen.ydrogen is found in large amounts in giant gas planets and stars, it plays a key role in powering stars through fusion reactions. Hydrogen is one of two important elements found in water (H 2 O). Each molecule of water is made up of two hydrogen atoms bonded to one oxygen atom.

Temperature and Pressure   One way to increase the solubility of a gas is to decrease the temperature of the liquid. The solubility of a gas in a liquid is usual … ly temperature dependent, although it depends on the particular combination of which gas and which liquid.

Hydrogen safety covers the safe production, handling and use of hydrogen-particularly hydrogen gas fuel and liquid hydrogen. The main concern in working with hydrogen is flammability. Liquid hydrogen is sometimes used as an extremely condensed hydrogen fuel; it is also used as a coolant for electric generators in power stations. 2  Hydrogen is also used as a feedstock in industrial processes including production of ammonia and methanol.

Gas. For hydrogen to become a liquid, you need to cool it down to 20.28 K, which is -252.87 degrees Celcius, or -434.45 degrees Fahrenheit if that is more your style. 6 people found this useful.

1 APPEARANCE: Hydrogen fluoride is a colorless fuming liquid below 67°F (19.4°C), or a colorless gas. 2  When hydrogen fluoride is combined with water it is known as hydrofluoric acid, a colorless liquid, which in low concentrations is visually indistinguishable from water.

What is the temperature of the gas turn to liquid? Every gas has a different liquidation temperature based on what element it is. Hydrogen has a liquidation point of 423.17 degrees below zero F.

Rating Newest Oldest. Best Answer: Hydrogen, like water, can exist in 3 states....Solid, Liquid and Gas Its temperature as a solid is −259.14 °C' Hydrogen melts to liquid at −252.87 °C. It boils and vaporises at -252.125 °C Just cooling or compressing Hydrogen won't liquefy or freeze it.

Confidence votes 11.4K. At STP (standard temperature and pressure) hydrogen is a gas. It cools to a liquid at -423 °F, which is only about 37 degrees above absolute zero. Eleven degrees cooler, at -434 °F, it starts to solidify.

Hydrogen is found naturally in the molecular H2 form. To exist as a liquid, H2 must be cooled below hydrogen's critical point of 33 K. However, for hydrogen to be in a fully liquid state without boiling at atmospheric pressure, it needs to be cooled to 20.28 K (−423.17 °F/−252.87 °C).

At STP (standard temperature and pressure) hydrogen is a gas. It cools to a liquid at -423 °F, which is only about 37 degrees above absolute zero. Eleven degrees cooler, at … -434 °F, it starts to solidify.