Final answer:
The law of conservation of mass in chemistry states that the total mass of substances involved in a chemical reaction remains constant. It is a fundamental concept in chemistry.
Step-by-step explanation:
The law of conservation of mass in chemistry states that the total mass of substances involved in a chemical reaction remains constant. This means that the mass of the reactants before the reaction is the same as the mass of the products after the reaction. The law of conservation of mass is a fundamental concept in chemistry and is based on the idea that matter cannot be created or destroyed, only transformed.
For example, if you have a reaction where iron rusts in the presence of oxygen to form iron oxide, the mass of the iron and oxygen before the reaction will be equal to the mass of the iron oxide formed after the reaction. This is because the atoms of iron and oxygen are rearranged to form the iron oxide, but no atoms are lost or gained in the process.
In summary, the law of conservation of mass states that mass is conserved in a chemical reaction. It provides a fundamental understanding of how matter behaves during chemical reactions.