Hydrogen gas is produced.
Hydrogen gas
The gas that is produced if you blow carbon dioxide in boiling water is carbonic gas (H2CO3).
The gas produced when sodium metal is added to cold water is hydrogen gas.
Hydrogen
Hydrogen gas is produced when sodium is added to water. This reaction is highly exothermic and can result in the sodium igniting.
If one chemically reacts oxygen gas and hydrogen gas, any liquid produced is water.
When hydrogen burns, water vapor (H2O) is produced as a byproduct.
Hydrogen.
water vapor
Hydrogen and oxygen
When a metal reacts with water, hydrogen gas is produced. This reaction typically occurs when a reactive metal, such as sodium or potassium, reacts with water to form the metal hydroxide and release hydrogen gas.