Question

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

Answer 1

Answer:

Magnesium burns in steam to produce white magnesium oxide and hydrogen gas. ... However, the reaction soon stops because the magnesium hydroxide formed is almost insoluble in water and forms a barrier on the magnesium preventing further reaction.

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Answer 2

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.