The chemical formula of ferric chloride is FeCl3 and that of sodium hydroxide is NaOH. The unbalanced chemical equation is:
FeCl3 + NaOH → Fe(OH)3 + NaCl
balancing the number of oxygen and hydrogen atoms first and then balancing the number of sodium atoms, the balanced chemical equation is found to be:
FeCl3 + 3NaOH → Fe(OH)3 + 3NaCl