Reducing SO2 Emissions SO2 is a product of coal combustion. It may combine with 02 and H2O in the atmosphere to form sulfuric acid, a component of acid rain. One way to reduce the formation of acid rain involves trapping the SO2 by passing smokestack gases through a spray of calcium oxide and 02. The product of this reaction is calcium sulfate. a. Write a balanced chemical equation describing this reaction by writing the product and adding coefficients. Do not include phases. Use the left and right arrow keys to move the cursor out of a superscript or subscript in the module. b. How many metric tons of calcium sulfate would be produced from each metric ton of SO2 that is trapped? Tip: If you want to reset an answer module to its original form, click on the module that you want to reset, and press the restore button is the icon with two