Explain the reaction of different metal with cold water ,hot water and steam . Give 1 example with a chemical equation
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Calcium reacts with cold water to form calcium hydroxide and hydrogen gas which bubbles up and stick to the surface of calcium metal making it light, due to which calcium floats on water.
Ca(s) + 2H2O(l) → Ca(OH) 2 (aq) + H2 (g)
Ca(s) + 2H2O(l) → Ca(OH) 2 (aq) + H2 (g)
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