AP Chemistrymediummcq1 pt
In the reaction HSO₄⁻ + H₂O ⇌ SO₄²⁻ + H₃O⁺, which species acts as a base?
A.H₂O
B.HSO₄⁻
C.SO₄²⁻
D.H₃O⁺
Explanation
Core Concept
Water accepts the proton from HSO₄⁻, becoming H₃O⁺ — that acceptance makes it the base in this forward reaction.
Correct Answer
AH₂O
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