Question

Which coefficient is needed in front of NaNO3 to balance the equation Na2S + Zn(NO3)2 → ZnS + _NaNO3?

Answer 1

i think the coefficient is na2s.

Answer 2

Coefficient is the number in front of a formula in a balanced chemical equation.

For equation to balance the number of atoms in product side must be equal to number of atoms in reactant side.

Putting coefficient 2 in front of NaNO3 balance the equation therefore the balanced equation. the answer is 2