When a hydroxide reacts with an acid, the products are which of the following?

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Study for the IGCSE Edexcel Chemistry Test. Access flashcards and multiple choice questions with hints and explanations. Get ready for your exam!

Multiple Choice

When a hydroxide reacts with an acid, the products are which of the following?

Explanation:
When a hydroxide reacts with an acid, the H+ from the acid combines with the OH- from the hydroxide to form water. The remaining ions—the cation from the base and the anion from the acid—join to form a salt. So the typical products are salt and water, which is the hallmark of a neutralization reaction. For example, HCl with NaOH gives NaCl and H2O. Hydrogen gas would not be produced in this reaction, and oxygen gas isn’t expected here, since no redox involving gas formation occurs in a simple acid–base neutralization.

When a hydroxide reacts with an acid, the H+ from the acid combines with the OH- from the hydroxide to form water. The remaining ions—the cation from the base and the anion from the acid—join to form a salt. So the typical products are salt and water, which is the hallmark of a neutralization reaction. For example, HCl with NaOH gives NaCl and H2O. Hydrogen gas would not be produced in this reaction, and oxygen gas isn’t expected here, since no redox involving gas formation occurs in a simple acid–base neutralization.

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