Answer :
The Law of Conservation of Mass states:
A. Matter cannot be created or destroyed, it can only change its form.
This means that in a chemical reaction or a physical change, the total mass of the substances before the change is equal to the total mass of the substances after the change. The atoms of the elements involved in a reaction are rearranged, but none of them are created or destroyed in the process. This law is a fundamental principle in chemistry and helps scientists understand and predict the outcomes of chemical reactions. An example of this law in action is the burning of a piece of paper. Even though the paper turns into ash and smoke, the total mass of the ash, smoke, and any gases released is equal to the mass of the original paper.
