Question

Why some metals react with hot water but not cold water?

Answer 1

Answer:

Reaction with steam - products are metal oxide and hydrogen gas. Magnesium reacts rapidly with steam to form magnesium oxide and hydrogen . Metals like aluminium, zinc, iron do not react with hot/cold water ; they react only with steam to form a metal oxide and hydrogen .

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Answer 2

Explanation:

because they form the precipitates if not compatible