Answer:
AlCl₃
General Formulas and Concepts:
- Elemental Charges
- Reading a Periodic Table
Explanation:
Step 1: Define
Al³⁺ and Cl¹⁻
Step 2: RxN
Al³⁺ (s) + Cl¹⁻ (g) → AlCl₃
- Need to have the same amount of charge (should add to 0)
- We need 3 Cl's to balance the positive 3+ charge
- 3(-1) for Cl + 1(3+) for Al = 0
