Answer:
3NaCl + H₃PO₄ → Na₃PO₄ + 3HCl
Explanation:
The reactants in this reaction are:
Sodium chloride - NaCl
Phosphoric acid - H₃PO₄
Products of the reaction:
Sodium phosphate - Na₃PO₄
Hydrochloric acid - HCl
Therefore;
NaCl + H₃PO₄ → Na₃PO₄ + HCl
To balance this reaction expression, assign variables a,b, c and d to it;
aNaCl + bH₃PO₄ → cNa₃PO₄ + dHCl
Conserving Na; a = 3c
Cl; a = d
H; 3b = d
P; b = c
O; 4b = 4c
let c = 1, b = 1, a = 3 and d = 3
So;
3NaCl + H₃PO₄ → Na₃PO₄ + 3HCl