chemistry wizards pllzzz help?

Question

An ion can be removed from an aqueous solu-
tion by
1. the formation of what is essentially a
nonelectrolyte.
2. All of these
3. formation of a precipitate.
4. the formation of a gas that escapes.

In the net ionic equation for the neutraliza-
tion reaction between hydro°uoric acid (HF)
and sodium hydroxide (NaOH), the HF is rep-
resented as
1. neither the molecule nor the separated
ions since it is a spectator in the reaction.
2. the molecule, HF.
3. either as molecule or the separated ions.
4. the separated ions, H+ and F¡.

What is the net ionic equation for the reaction
between aqueous solutions of Na3PO4 and
CuSO4?
1. 2 Na+ + SO2¡
4
! Na2SO4
2. 3 Cu2+ + 2PO3¡
4
! Cu3 (PO4)2
3. Cu2+ + PO3¡
4
! CuPO4
4. No reaction occurs since no precipitate is
formed.

Answer 1

1st question: 2
Second question: 2
Third question: 2 again, but the way it has come out on my screen is a little odd!