Question

calcium after reacting with water start floating on water surface give reason and write chemical equations​

Answer 1

Answer:

GIVEN BELOW

Explanation:

The reaction of calcium with water is less violent. So, the heat released is not sufficient for the hydrogen to catch fire. Calcium starts floating because the bubbles of hydrogen gas which are formed during the reaction stick to the surface of the metal and hence calcium floats on water.

Ca+2H2O--------->Ca(OH)2+H2

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