Acid rain is less of a threat to lakes and streams in areaswhere the rock is lim

Question

Acid rain is less of a threat to lakes and streams in areaswhere the rock is limestone (CaCO3). Which of thefollowing is the equation for the neutralization of acid bylimestone? a. CaCO3 + OH- ---> CaOH +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 Acid rain is less of a threat to lakes and streams in areaswhere the rock is limestone (CaCO3). Which of thefollowing is the equation for the neutralization of acid bylimestone? a. CaCO3 + OH- ---> CaOH +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 b. CaCO3 + 2H3O+ --->Ca2+ + CO2 + 3H2O c. CaCO3 + H3O ---> Ca +CO2 + H2O d.. CaCO3 + OH- ---> Ca2++ CO2 + H2O e. CaCO3 + 2H3O+---> Ca2 + CO2 + 2H2O

Explanation / Answer

The first thing to realize is that limestone in neutralizingan acid. It can't be A or D because it is neutralizing a base. From here just look at which equation balances. C --> There are 4 oxygens on the reactants side and 3oxygens on the products side. NOT C. E --> There are 5 oxygens on the reactants side and 4oxygens on the produxts side. NOT E. Therefore your answeris B

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