How to balance the following molecular equations?

Question

1 - Cr(NO3)3+NA3PO4--->Cr3(PO4)3
2 - Pb(NO3)2 + NA3PO4----> Pb3(PO4)2
3 - AgNO3+NaI*-----> AgI*

PS - if you can do the total ionic equation it would be really helpful also.


* ---capital i

i tried to balance them but im getting them all confused, thus the reason why i posted the question here in the first place Mr.Why...

Answer 1

1. Cr(NO3)3 + Na3PO4 --> CrPO4 + 3NaNO3

Cr(3+)(aq) + PO4(3-)(aq --> CrPO4(s)

2. 3Pb(NO3)2 + 2Na3PO4 --> Pb3(PO4)2 + 6NaNO3

3Pb(2+)(aq) +2 PO4(3-)(aq) --> Pb3(PO4)2(s)

3. AgNO3 + NaI --> AgI + NaNO3

Ag+(aq) + I-(aq) --> AgI(s)

Answer 2

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