Question

Metal + H2O gives rise to Metal Oxide + H2
However, Mg + hot water gives rise to Mg(OH)2
AND
Mg + steam gives rise to MgO + H2

Why are there two different reactions? How has Mg(OH)2 formed? Pls answer fast.

Answer 1

its because Mg can react with both hot and cold water because its reactivity is higher than most metals and it forms alkali also. Mg(OH)2 is formed by the reaction of Mg with hot water. It is an exothermic reaction where hydrogen bubbles float to the surface and stick to the Mg formed.

Answer 2

Explanation:

There two are different reaction because in each reaction , magnesium is reacting with different state of water and the result after the reaction is also different so, they both are different types of reactions