Explain the following reaction with the help of a balanced chemical equation: Calcium reacts with water.

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Solution

a. Calcium reacts with water less vigorously to form calcium hydroxide and hydrogen gas.
b. Calcium starts floating in water as it becomes lighter due to the bubbles of hydrogen gas sticking to its surface.
$C a_{(s)} + 2 H_{2} O (s) \to C a (O H)_{2 (a q)} + H_{2 (g)} ↑ +$ small amount of heat energy

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Explain the following reaction with the help of a balanced chemical equation: Calcium reacts with water.

a. Calcium reacts with water less vigorously to form calcium hydroxide and hydrogen gas.b. Calcium starts floating in water as it becomes lighter due to the bubbles of hydrogen gas sticking to its surface. Ca(s)+2H2O(s)→Ca(OH)2(aq)+H2(g)↑+small amount of heat energy