Because the older cells will not be able to function properly without the new cells taking over them. :)
Answer:In regards to writing the formula, we know that magnesium has a charge of 1+ and sulfate, SO4, has a charge of 1-. Sulfate is a polyatomic ion so the charge of the whole thing is (SO4)1-. When you combine them you end up with MgSO4 and the "heptahydrate" is seven water molecules.
Explanation:
A. They were ways Congress sought to guarantee blacks the full rights of citizenship.
Sodium reacts with water to form a colorless solution of sodium hydroxide and hydrogen gas.
