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Why is water not cold as hydrogen and oxygen in its liquid form?
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What happens when objects are placed into liquid hydrogen?
They freeze. Liquid hydrogen is very cold.
What happens when hydrogen is combined with oxygen?
When two oxygen and one hydrogen is mixed together, it forms water, or H2O. NASA uses a combination of hydrogen and oxygen in their fuel tanks to ensure lift-off so it produces a large amount of energy in the right proportions as the reaction is very exothermic. If you mix hydrogen gas and oxygen gas they don't react at all unless you heat them.
Can you breathe liquid oxygen?
No, it is not possible to breathe in liquid oxygen. If a person were to try and breathe in liquid oxygen it would kill them instantly because the oxygen temperature is so cold (about -200 degrees) it would freeze your insides.
It is to hot for liquid water to exist?
It is too cold for liquid water to exist on the surface
Why has water been included as one of the test materials for reducing sugars starch and protein?
sugars and starch are both made only of carbon, hydrogen and oxygen that is insoluble in cold water or alcohol
How much fuel does rocket takeoff use?
500,000 gallons of cold liquid oxygen and liquid hydrogen
Which substance is a liquid fuel used in rocket engine?
Traditionally, rockets use cryogenic (super-cold) oxygen and hydrogen.
What happens when objects are placed into liquid hydrogen?
They freeze. Liquid hydrogen is very cold.
What are the hazards of liquid hydrogen?
The primary hazards of liquid hydrogen are cryogenic (things get too cold and injure you with their cold) and fire and explosions (hydrogen is extremely flammable.
It is too hot for liquid water to exist?
It is too cold for liquid water to exist on the surface
Can liquid nitrogen freeze the wind?
No. The wind is composed of a small amount of water vapor and about 20% oxygen and about 80% nitrogen. The water vapor may freeze but the oxygen and the nitrogen cannot freeze at the temperature of liquid nitrogen. Oxygen has a much lower freezing point than liquid nitrogen and if the nitrogen were to be frozen, liquid nitrogen is not cold enough to freeze it...sort of like trying to make ice using cold water.
What element is used to freeze things?
Oxygen (I) Hydrogen and Helium are elements that are used to freeze things. Liquid helium is used to get things extremely cold.
Explain why a water molecule has polar covalent bonds?
Water has a polar covalent bond because the electrons that the hydrogens share with the oxygen hang out around the oxygen more than the hydrogens. This is because the oxygen has more protons in its nucleus than the hydrogen. The hydrogen become positively charged and the oxygen becomes negatively charged. Then also when the molecule becomes cold, loses energy, the hydrogens get closer to each other, but they repel each other, which is why ice is less dense than water. The hydrogen then also forms hydrogen bonds with the other water molecules, attaching to the negatively charged oxygens.
Is oxygen becoming liquid?
Oxygen has to get extremely cold to become a liquid: -183 degrees Celsius.
What is the gas coming from the bottom of a rocket before launch?
What we see, at least in the instance of the space shuttle launch, is hydrogen and oxygen being vented. About the last thing we do before sending the shuttle up is fuel it. Liquid hydrogen and liquid oxygen are pumped into the cryogenic tank (the giant cylindrical container to which the shuttle itself is connected, and to which the solid booster rockets are attached. As the liquid hydrogen and oxygen are pumped in, they supercool the tanks in which they enter. As the tanks cool, some of the hydrogen and some of the oxygen are "boiled off" in that cooling process. The H2 and O2 have changed phase to a gas, but are still extremely cold, and as the liquid H2 and O2 full the tanks, that very cold gas is vented off and, because it is so cold, it appears as the "clouds" or "steam-looking" stuff that is visible during (and up to) launch.
What is the storage for liquid fuel?
Volatile explosive fuels such as hydrazine cannot be exposed to oxygen or chemicals containing oxygen, or they may burn or explode. Liquid oxygen and liquid hydrogen have to be kept extremely cold or they will revert to gaseous form with a tremendous pressure. The storage tanks and onboard fuel tanks are highly insulated to keep out heat.
What happens when hydrogen is combined with oxygen?
When two oxygen and one hydrogen is mixed together, it forms water, or H2O. NASA uses a combination of hydrogen and oxygen in their fuel tanks to ensure lift-off so it produces a large amount of energy in the right proportions as the reaction is very exothermic. If you mix hydrogen gas and oxygen gas they don't react at all unless you heat them.
