What term describes a chemical that produces an acidic substance, with a pH of less than 7?

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Study for the Grade 9 Environmental Chemistry Test. Use a blend of multiple-choice questions and detailed explanations. Master key concepts and prepare effectively!

Multiple Choice

What term describes a chemical that produces an acidic substance, with a pH of less than 7?

Explanation:
pH tells us how acidic or basic a solution is. Acids produce more hydrogen ions in water, which lowers the pH to below 7. The term for a chemical that creates an acidic substance is acid, because it is the species that makes the solution acidic. A base increases hydroxide ions and raises pH, giving a basic solution. A salt can be acidic, basic, or neutral depending on its ions, so it isn’t defined by producing acidity. Neutral substances have a pH around 7. So acid is the best fit for a chemical that yields an acidic substance with pH less than 7.

pH tells us how acidic or basic a solution is. Acids produce more hydrogen ions in water, which lowers the pH to below 7. The term for a chemical that creates an acidic substance is acid, because it is the species that makes the solution acidic. A base increases hydroxide ions and raises pH, giving a basic solution. A salt can be acidic, basic, or neutral depending on its ions, so it isn’t defined by producing acidity. Neutral substances have a pH around 7. So acid is the best fit for a chemical that yields an acidic substance with pH less than 7.

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