Answer:
The answer to your question is: AlCl₃ + 3 K ⇒ 3 KCl + Al
Explanation:
In a balance equation the number of elements in the reactants must be equal to the number of elements in the products.
AlCl₃ + 3 K ⇒ 3 KCl + Al
3 ------- K ------- 3
3 ------- Cl ------- 3
1 -------- Al ------- 1
Now the equation is balanced
