Conjugate Acid-Base Pairs Worksheet
Explore the concepts of conjugate acid-base pairs, Brønsted-Lowry theory, and their identification in chemical reactions.
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Conjugate Acid-Base Pairs Worksheet
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Read each question carefully and provide your best answer. For multiple-choice questions, circle the letter corresponding to your chosen answer. For fill-in-the-blanks and short-answer questions, write your responses in the space provided.
1. According to the Brønsted-Lowry theory, an acid is a substance that:
Accepts a proton
Donates a proton
Produces hydroxide ions
Produces hydrogen ions
2. What is the conjugate base of H₂SO₄?
HSO₄⁻
SO₄²⁻
H₂SO₄⁺
H₃SO₄⁺
3. A conjugate acid-base pair differs by only one .
4. In the reaction HCl + H₂O → H₃O⁺ + Cl⁻, the conjugate acid of H₂O is .
5. Identify the acid, base, conjugate acid, and conjugate base in the following reaction:
NH₃ + H₂O ⇌ NH₄⁺ + OH⁻
6. Explain what an amphoteric substance is, providing an example.
7. A strong acid has a weak conjugate base.
True
False
8. The conjugate acid of a neutral molecule will always have a positive charge.
True
False