What is the word equation for the reaction of copper oxide with dilute hydrochloric acid to form copper chloride and water?

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Multiple Choice

What is the word equation for the reaction of copper oxide with dilute hydrochloric acid to form copper chloride and water?

Explanation:
Acid–base neutralization: a metal oxide reacts with an acid to form a salt and water. Copper oxide is a basic oxide, so it reacts with hydrochloric acid to produce the salt copper chloride and water. The natural word equation is copper oxide + hydrochloric acid → copper chloride + water. If you balance it, CuO + 2HCl → CuCl2 + H2O. The other options either show the wrong products—such as copper hydroxide, chlorine gas, or hydrogen—because those outcomes don’t result from a simple oxide plus acid neutralization.

Acid–base neutralization: a metal oxide reacts with an acid to form a salt and water. Copper oxide is a basic oxide, so it reacts with hydrochloric acid to produce the salt copper chloride and water. The natural word equation is copper oxide + hydrochloric acid → copper chloride + water. If you balance it, CuO + 2HCl → CuCl2 + H2O. The other options either show the wrong products—such as copper hydroxide, chlorine gas, or hydrogen—because those outcomes don’t result from a simple oxide plus acid neutralization.

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