Answer:
electrons
Reason:
neutrons and protons are inside the nucleus
Answer: The reactants
Explanation: These are the substances that go into a chemical reaction and start it.
Answer:
In simple terms, this law states that matter can neither be created nor destroyed. In other words, the total mass, that is, the sum of mass of reacting mixture and the products formed remains constant.
HOPE IT'S HELPFUL!
Endoplasmic reticulum is an organelle found in both eukaryotic animal and plant cells.