Question

give scientific reasons calcium floats on water during the reaction with waTer​

Answer 1

Explanation:

The reaction of calcium with water is not very 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.

Answer 2

Answer:

Hey mate here's your answer.

Explanation:

Calcium reacts with cold water but the reaction is less violent due to which less heat is produced which is not sufficient for the evolved hydrogen gas to catch fire. The bubbles of hydrogen stick to the surface of calcium metal due to which it starts floating on water.

Hope it helps you.