Question

This formula equation is unbalanced.

Answer 1

The balanced equation will read:

Pb(NO3)2 (aq) + LiSO4 (aq) ➡️ PbSO4 (s) + 2️⃣LiNO3 (aq)

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Answer 2

Answer: The coefficient '2' must be added in front of $LiNO_3$ to form a balanced equation.

Explanation:

Every balanced chemical equation follows law of conservation of mass.

This law states that mass can neither be created nor be destroyed but it can only be transformed from one form to another form. The total number of individual atoms on the reactant side must be equal to the total number of individual atoms on the product side.

For the given chemical equation:

$Pb(NO_3)_2(aq.)+Li_2SO_4(aq.)\rightarrow PbSO_4(s)+2LiNO_3(aq.)$

The coefficient '2' must be added in front of $LiNO_3$ to balance the equation.