Question

Why does magnesium start ribbon start floating hot water

tell me briefly​

Answer 1

The hydrogen gas evolved due to this reaction sticks on the surface of magnesium ribbon making it float in hot water.

Answer 2

Explanation:

Magnesium reacts with water to form magnesium hydroxide and hydrogen gas as:

Mg+2H

2

O→Mg(OH)

2

+H

2

The hydrogen gas evolved due to this reaction sticks on the surface of magnesium ribbon making it float in hot water.