Question

what happened when calcium reacts with water? write the chemical equation of the reaction of calcium with water

Answer 1

When calcium metal reacts with water then bubbles are formed on the surface of the metal as it reacts vigourously with water, producing hydrogen and precipitate of calcium hydroxide.
It reacts with cold water.
Its eq is :
Ca + 2(H2O) = Ca(OH)2 + H2

Answer 2

Answer: It produces calcium hydroxide and hydrogen gas.

Explanation:

When calcium metal reacts with water, it produces a hydroxide known as calcium hydroxide, which is soluble in water and also releases hydrogen gas.

The chemical equation for the reaction of calcium with water follows:

[tex]Ca(s)+2H_2O(l)\rightarrow Ca(OH)_2(aq.)+2H_2(g)

By Stoichiometry of the reaction:

1 mole of calcium reacts with 2 moles of water to produce 1 mole of calcium hydroxide and 2 moles of hydrogen gas.

Hence, it produces calcium hydroxide and hydrogen gas.