Essential Chemistry for IGCSE - Air And Water (Section 7 - No. 32)
Which of the following chemical equations describes the formation of acid rain?
SO2 + H2O -> H2SO4
O2 + CO2 -> H2CO3
CO + O2 -> CO2
CH4 + O2 -> CO2 + H2O
Explanation
The equation SO2 + H2O -> H2SO4 describes how sulfur dioxide reacts with water to form sulfuric acid, a component of acid rain.
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