Why does a magnesium ribbon start floating wh | vedclass

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Question

(B) Magnesium reacts with hot water to produce magnesium hydroxide and hydrogen gas $(Mg + 2H_2O \rightarrow Mg(OH)_2 + H_2)$.As the reaction proceeds

Vedclass · Accepted Answer

Bubbles of hydrogen gas stick to its surface, making it buoyant.

Vedclass · Answer

(B) Magnesium reacts with hot water to produce magnesium hydroxide and hydrogen gas $(Mg + 2H_2O \rightarrow Mg(OH)_2 + H_2)$.As the reaction proceeds, small bubbles of hydrogen gas are produced.These bubbles of hydrogen gas stick to the surface of the magnesium ribbon.Due to the buoyancy provided by these gas bubbles, the magnesium ribbon starts floating on the surface of the water.

Why does a magnesium ribbon start floating when it is placed in hot water?

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