Question

Balance the reactions which form ions. Choose "blank" if no other coefficient is needed. Writing the symbol implies "1."

1) (NH4)2CO3 ____ NH4 +_____ + CO3 -2
2) PbI2 _____ Pb+2 +______ I+1
3) (NH4)3PO4 ______ NH4 + _____ + PO4 +3

Answer 1

Following are the Balanced Reactions,

Reaction 1:

(NH₄)₂CO₃ → 2 NH₄⁺ + CO3⁻²

Reaction 2:

PbI₂ → Pb⁺² + 2 I⁻¹

Reaction 3:

(NH₂)₃PO₄ → 3 NH₄⁺ + PO₄⁻³

Answer 2

The answers are the following:
1) (NH4)2CO3 2 NH4 +→ + CO3 -2
2) PbI2 →1 Pb+2 +2 I+1
3) (NH4)3PO4 →3NH4 + 3 + PO4 +