In other words, the amount of atoms of each respective atom the carbon, the H and the O. Whatever we put in, we must get out. Now, notice in this equation we put in two C atoms and get one C. We put in six H atoms and only get two H atoms back. And somehow we put in only two O atoms and we get three O atoms back. This type of an equation where our numbers are unbalanced, our coefficients and atoms are imbalanced, is known as an unbalanced equation. To balance this equation, we basically have to multiply each atom by some number so that the number on this side of each atom equals the number on this side.