What must happen before a body cell can begin mitotic cell division

Atank contains 240 liters of fluid in which 10 grams of salt is dissolved. brine containing 1 gram of salt per liter is then pumped into the tank at a rate of 6 l/min; the well-mixed solution is pumped out at the same rate. find the number a(t) of grams of salt in the tank at time t.

In an oxidation-reduction reaction, oxidation is what happens when a reactant

If 90.0 grams of ethane reacted with excess chlorine,how many grams of dicarbon hexachloride would form