I believe what you are talking about is the synthesis reaction
Because without the mass, you can't find the molar mass and other formulas in Chemistry.
solubility of the solvent,
molecular size of the solute
The answer you are looking for is A: Adding more batteries will increase the current
Since you have a circuit in series, that means that all of the bulbs would be connected to one wire. If you were add more batteries to that <em>one </em>wire, you would end up with a greater flow of energy throughout the bulbs/wire
