7 A precipitation of iron(III) hydroxide is produced by reacting an aqueous solution of iron(III) chloride with an aqueous solution of sodium hydroxide. Which is the correct balanced chemical equation?
A FeCl₂(aq) + 3NaOH(aq) → Fe(OH)3(s) + 3NaCl(s)
B 3FeCl₂(aq) + 3NaOH(aq) →3Fe(OH)₂(s) + 3NaCl(s)
C 3FeCl3(aq) + NaOH(aq) → Fe(OH)3(s) + 3NaCl(s)
D FeCl₂(aq) + NaOH(aq) → Fe(OH)3(s) + NaCl(s)​