Question

Acid rain is less of a threat to lakes and
streams in areas where the bedrock is limestone
(CaCO3). Which of the following is the equation
for neutralization of acid by limestone?
A. CaCO3 + 2OH- ~>Ca(OH)2 + CO2
B. CaCO3 + 2H3O+ ~>Ca2+ + CO2 + 3H2O
C. CaCO3 + H3O ~>Ca + CO2 + H2O
D. CaCO3 + OH- ~>Ca2+ + CO2 + H2O
E. CaCO3 + 2H3O+ ~>Ca2+ + CO2 + 2H2O

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