An unbalanced chemical equation is shown: 2nan3 → 2na + n2 which of the following statements explains why the equation is not balanced? ( a. four molecules of n2 should be produced during the decomposition. ( b. three molecules of n2 should be produced during the decomposition. ( c. four molecules of n2 should be produced during the synthesis reaction. ( d. three molecules of n2 should be produced during the synthesis reaction.