Question

Explain why ca floats on water?write chemical reaction for this? Name one metal that starts floating after some time when immersed in water

Answer 1

Answer:

Hello buddy

Explanation:

Calcium and magnesium are two metals that start floating after some time when immersed in water.

Explanation: Calcium and Magnesium react with water to form respective hydroxides and release hydrogen gas. The reactions are given as:

Ca + 2H2O → Ca(OH)2 + H2

Mg + 2H2O → Mg(OH)2 + H2

The bubbles of the hydrogen gas so formed in the reaction stick to the surface of the metal surface, and thus the metals float on water.

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