The following reaction is important in the removal of sulfur dioxide,a major source of acid rain,from the smokestacks of coal burning power plants.When the equation below is balanced,the coefficient of calcium oxide (commonly called "lime")is:
CaO + SO₂ + O₂ → CaSO₄

Question

Quizplus · Accepted Answer

To balance the equation, we first need to ensure that the number of atoms of each element is equal on both sides. Since there is one calcium atom on the left-hand side and one calcium atom on the right-hand side, the coefficient for calcium oxide (CaO) is 1. However, to balance the sulfur and oxygen atoms, we need to have two molecules of CaO. Therefore, the coefficient for CaO is 2.

The Following Reaction Is Important in the Removal of Sulfur