What happens when an acid reacts with a metal oxide?
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A.
A salt and water are formed.
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B.
A salt and hydrogen gas are formed.
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C.
Only water is formed.
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D.
Only salt is formed.
Correct Answer:
A. A salt and water are formed.
Explanation:
When a metal oxide reacts with an acid, the resulting products are a salt and water. This process is a neutralization reaction because most metal oxides are basic in nature. For instance, if copper(II) oxide is treated with hydrochloric acid, it produces copper(II) chloride (the salt) and water. The general chemical equation for this interaction is: Metal Oxide + Acid -> Salt + Water.
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