Final answer:
To balance the equation Zn(s) + NO₃⁻(aq) → Zn(OH)4⁻²(aq) + NH₃(aq) in acid, you need to balance the atoms and charges on both sides of the equation.
Step-by-step explanation:
To balance the equation Zn(s) + NO₃⁻(aq) → Zn(OH)4⁻²(aq) + NH₃(aq) in acid, you need to balance the atoms and charges on both sides of the equation. Start by balancing the zinc atoms, then the nitrogen, oxygen, and hydrogen atoms. Lastly, balance the charges by adding H+ ions to the left side. The balanced equation is 3Zn(s) + 10HNO₃(aq) → 3Zn(OH)4⁻²(aq) + 4NH₃(aq) + 10NO₃⁻(aq) + 6H₂O(l).