Question

how do metal react with water .Give two example​

Answer 1

All the metals react differently with water like potassium reacts violently with hot water, magnesium reacts slowly with cold water.

Answer 2

Metals react with water according to the activity series of metals. The highly reactive metals like potassium, sodium and calcium react vigorously with water to form a base and evolve hydrogen gas. The elements below in the series, such as aluminium, zinc and iron usually react with only hot water but prevent further reaction by forming a coating of their oxide on the surface. The metals further down like gold and silver do not react at all with water.