Explain, using particle theory, why the reaction between steam and
magnesium is more vigorous than that between liquid water and magnesium.

Using particle theory, reaction between steam and magnesium can be termed as more vigorous than that between liquid water and magnesium.
Explanation:The reaction of magnesium and steam takes place which produces magnesium oxide and evolves hydrogen gas.When steam is passed over the magnesium reaction takes place with the formation of magnesium oxide which is a white powder here hydrogen gas is also formed.The burning of magnesium takes place with bright white flame in the presence of steam.When the burning of magnesium takes place in the presence of oxygen, bright light is emitted with the release of a lot of heat.This reaction is an exothermic reaction.Here the product includes powdery magnesium oxide.