Which Reaction Accounts for the Fact That the PH of Rain

question 19

Multiple Choice

Which reaction accounts for the fact that the pH of rain is naturally slightly acidic?

• A)CO₂ + H₂O \(\rarr\) H⁺ + HCO₃¯
• B)SO₃ + H₂O \(\rarr\) 2 H⁺ + SO₄^2¯
• C)Ca²⁺ + CO₂ + H₂O \(\rarr\) CaCO₃ + 2 H⁺
• D)NO₂ + H₂O \(\rarr\)2 H⁺ + NO₃¯

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