LiH reacts with acetylene to form lithium carbide and hydrogen.

Hydrazine breaks down in the cell to form nitrogen and hydrogen which bonds with oxygen, releasing water.

Aluminum powder reacts with calcium hydroxide and water to form hydrogen.

In both cases this is due to water being reduced to form hydrogen or oxidised to form oxygen.

The fast protons join together to form hydrogen and then helium.

This is an indirect process, since it produces electricity that then is used to form hydrogen.

"The stuff forms hydrogen when water reaches it; so rapidly that the hydrogen ignites."

Cadmium vapor and steam will form CdO and hydrogen in a reversible reaction.

The powder reacts with water to form hydrogen.

Diborane reacts with water to form hydrogen and boric acid: