Question

explain the reactivity of metal in the following cases and write the observation also
1: with cold water.
2:with hot water.
3: third with steam.
give example of each

Answer 1

Potassium reacts With cold water to form potassium hydroxide.
2k + 2H2O ------------> 2KoH
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Magnesium reacts with hot water and steam both to form Magnesium oxide.
Mg + H2O ------------> MgO