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Chapter 19: Problem 19

One harmful effect of acid rain is the deterioration of structures and statues made of marble or limestone, both of which are essentially calcium carbonate. The reaction of calcium carbonate with sulfuric acid yields carbon dioxide, water, and calcium sulfate. Because calcium sulfate is marginally soluble in water, part of the object is washed away by the rain. Write a balanced chemical equation for the reaction of sulfuric acid with calcium carbonate.

Short Answer

Expert verified
The balanced chemical equation for the reaction of sulfuric acid (H2SO4) with calcium carbonate (CaCO3) is: \(CaCO3 + H2SO4 -> CO2 + H2O + CaSO4\).

Step by step solution

01

1. Write the unbalanced chemical equation

Begin by writing the unbalanced chemical equation, which includes the reactants and products: CaCO3 + H2SO4 -> CO2 + H2O + CaSO4
02

2. Balance the calcium atoms

There is already one calcium atom on both sides of the equation, so the calcium atoms are balanced: CaCO3 + H2SO4 -> CO2 + H2O + CaSO4
03

3. Balance the carbon atoms

There is one carbon atom on both sides of the equation from calcium carbonate and carbon dioxide, so the carbon atoms are also balanced: CaCO3 + H2SO4 -> CO2 + H2O + CaSO4
04

4. Balance the oxygen atoms

There are 7 oxygen atoms on the reactant side (3 from CaCO3 and 4 from H2SO4) and 7 on the product side (2 from CO2, 1 from H2O, and 4 from CaSO4), so the oxygen atoms are balanced: CaCO3 + H2SO4 -> CO2 + H2O + CaSO4
05

5. Balance the hydrogen atoms

Finally, there are 2 hydrogen atoms on the reactants side (from H2SO4) and 2 hydrogen atoms on the products side (from H2O), so the hydrogen atoms are balanced as well: CaCO3 + H2SO4 -> CO2 + H2O + CaSO4 Since all the atoms are now balanced on both sides of the equation, the balanced chemical equation is: CaCO3 + H2SO4 -> CO2 + H2O + CaSO4

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