For an intro chem course
Zn^0 (s)+ Cu^2+ (aq) + 2H+ --Cu + H2O(l)

Addition of zinc metal Zn^0 to an acidic solution of copper(2) sulfate CuSO4--composed of copper ions Cu2+ and sulfate ions SO4(2-)
Reaction: species on the left of arrow Zn^0(s), Cu2+(aw) and HCl(aq) in the form of H+ and Cl-
right of arrow: Zn2+(aq), Cu0(s) and H2(g)

1)Why is the acid in the reaction necessary?
Why can the solution of Copper(II) sulfate simply be made with water?

2) Explain How the Law of Conservation of Mass is the basis for all stochiometry?
Should we be answering t

Question

For an intro chem course 
Zn^0 (s)+ Cu^2+ (aq) + 2H+ -->Cu + H2O(l)

Addition of zinc metal Zn^0 to an acidic solution of copper(2) sulfate CuSO4--composed of copper ions Cu2+ and sulfate ions SO4(2-)
Reaction: species on the left of arrow Zn^0(s), Cu2+(aw) and HCl(aq) in the form of H+ and Cl-
right of arrow: Zn2+(aq), Cu0(s) and H2(g)


1)Why is the acid in the reaction necessary?
Why can the solution of Copper(II) sulfate simply be made with water?

2) Explain How the Law of Conservation of Mass is the basis for all stochiometry?
Should we be answering t