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If you mean the individual gases you will need to apply pressure and or reduce the temperature to liquefy the gases.
If you mean by forming a compound react them together. The end product is water which is liquid at room temperature and pressure.
What else can I help you with?
Can you separate hydrogen and oxygen gases?
Yes. This can be done by condensation, since the two gasses change from gas to liquid at different temperatures.
What happens when you mix liquid hydrogen with liquid oxygen?
When liquid hydrogen and liquid oxygen are mixed together in the correct stoichiometric ratio and ignited, they react exothermically to form water vapor. This reaction releases a large amount of energy, producing intense heat and a loud explosion. The reaction between liquid hydrogen and liquid oxygen is commonly used as a rocket fuel due to its high energy output.
What must be done to oxygen to change it to a liquid?
To change oxygen gas into a liquid, it must be cooled to a temperature below its critical temperature of -118.57 degrees Celsius. This can be achieved by compressing the gas while simultaneously cooling it.
What must be done to oxygen and hydrogen to change them liquids?
If you mean the individual gases you will need to apply pressure and or reduce the temperature to liquefy the gases. If you mean by forming a compound react them together. The end product is water which is liquid at room temperature and pressure.
What is the difference between the way materials combine to form mixtures and the way elements combine to form molecules?
Properties change when molecules are formed. Properties, at least some of them, do not change in a mixture. Mixtures can be done in any proportion, molecules have an exact ratio of the elements in them. Hydrogen gas and oxygen gas can be mixed in a container in any amounts. 10 parts hydrogen to 3 parts oxygen or 15 parts oxygen to 7 parts hydrogen. They are still gases, colorless, odorless, etc. But if you strike a match the atoms combine in a ratio of 2 hydrogen to 1 oxygen and form water. If you collect it and cool it, the compound is liquid water. Obviously not the same properties.
What would have to be done to the water to make it change chemically that is make it change into the substances that compose it hydrogen and oxygen Remember boiling water will not change it?
you can use electricity to split the atoms apart into their respective units, ie hydrogen and oxygen, I think it's called electolosys or something like that. there is a portable gas welder that uses batteries and water. it splits the water with electricity and burns the gasses to weld. very cool.
What is done to change a liquid to a solid?
Usually it is frozen.
4. What would have to be done to the water to make it change chemically that is make it change into the substances that compose it hydrogen and oxygen?
You would have to provide sufficient energy to break the hydrogen-oxygen bonds and allow them to reform as hydrogen-hydrogen and oxygen-oxygen.2 H2O -> 2 H2 + O2One way of doing this is electrolysis, where electrical energy is used.http://en.wikipedia.org/wiki/Electrolysis_of_water[This isn't for Chemistry in a certain online school, is it? =)]* Wiki is not a reliable source. It is only a good starting point.also i think ur asking if water can be made so that its compose of different amount of hydrogen and oxygen atoms however this would make it a different molecule altogether and not water
How can one make water?
Water can be made through a process called synthesis, where hydrogen and oxygen atoms combine to form water molecules. This can be done by burning hydrogen gas in the presence of oxygen, or by passing an electric current through water to split it into hydrogen and oxygen, then recombining them.
What must be done to make oxygen a liquid?
To make oxygen a liquid, it must be cooled to a temperature below its critical temperature of -118.57 degrees Celsius and be subjected to high pressure. This will cause the oxygen molecules to come close together and transition from a gas to a liquid state.
What must be done to oxygen and hydrogen to change them in liquids?
If you mean the individual gases you will need to apply pressure and or reduce the temperature to liquefy the gases. If you mean by forming a compound react them together. The end product is water which is liquid at room temperature and pressure.
What is needed to decompose water into hydrogen gas and oxygen gas?
Electrolysis is the process by which water can be split into Hydrogen Gas and Oxygen. This is done by running a current of electricity through the water which is diluted with sulphuric acid (or lemon water or salt) because it is a good conductor of electricity. Hydrogen is a Cation and Oxygen is an Anion then near the positive ends of the current you will find Hydrogen bubbles and the negative side you will find Oxygen bubbles.
