what are the products of Ca +H +OH-->?

When one adds any active metal to water, the hydroxide is formed, and hydrogen gas is given off, and it is exothermic.

will it be Ca + H2O?

To determine the products of the chemical reaction:

Ca + H2O → ?

We know that calcium (Ca) reacts with water (H2O), so we can break down the reaction and see what happens.

Ca + H2O → Ca(OH)2 + H2

The reaction results in calcium hydroxide (Ca(OH)2) and hydrogen gas (H2) being produced.

So, the products of the reaction Ca + H2O are calcium hydroxide (Ca(OH)2) and hydrogen gas (H2).