Question

Discuss the action of sodium and calcium on water.

Answer 1

Hi guy.

The reaction of calcium (Ca) with water is less violent. The heat evolved is not sufficient for hydrogen to catch fire.

Ca(s) +2H2O(l)= Ca(OH)2 + H2.

Sodium reacts with cold water violently. The reaction is so exothermic that the hydrogen quickly catches fire.

2Na(s)+ 2H2O(l)= 2NaOH(aq)+ H2(g).

Hope it helps

Answer 2

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