Science Common Sense

1513 - What is the principle for balancing chemical reaction equations based on the law that chemical reactions only involve the rearrangement of atoms, with no change in their number?

The principle is called the Law of Conservation of Mass. This means that the number of atoms of each element is the same on both the left and right sides of a chemical equation. This law helps us balance chemical reaction equations by making sure we have the same number of atoms for each element on both sides.