Chemistry, asked by ajaysinghjagat8235, 1 year ago

1. why calcium metal after reaction with water starts floating on its surface?

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Answered by suzanneshahnawaz

Calcium metal reacts with water to forn calcium hydroxide and hydrogen gas. The reaction of calcium with water is less violent (compared to Na and K). ... Calcium starts floating on water because it becomes lighter due to the bubbles of hydrogen gas formed stick to its surface.

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