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Natural Rainfall Is Slightly Acidic at a PH of About

Question 42

Question 42

Multiple Choice

Natural rainfall is slightly acidic at a pH of about 5.5.Why is the pH of natural rain acidic?

A) pure water is acidic
B) HNO₃ forms when N₂ dissolves in rainwater
C) H₂CO₃ forms when CO₂ dissolves in rainwater
D) H₂O₃ forms when O₂ dissolves in rainwater
E) H₂SO₄ forms when smog dissolves in rainwater

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