AlCl3 + NaOH = NaClO2 + Al(OH)3
balance the equation!
*dont forget the O2 in NaClO2!!

AlCl₃  + 3NaOH  → 3NaCl  +   Al(OH)₃

Explanation:

Problem is to balance the given chemical equation:

      Equation:  

              AlCl₃  + NaOH  → NaClO₂   +   Al(OH)₃

Balancing a chemical equation involves the conservation of atoms on both sides of the equation.

We can use a very simple mathematical method to balance the above equation;

           aAlCl₃  + bNaOH  → cNaCl   +   dAl(OH)₃

a, b, c and d are coefficients that will balance the equation:

  Conserving Al:  a  = d

                       Cl:   3a = c

                       Na:   b = c

                       O:      b = 3d

                       H:      b = 3d

Assume that a = 1;

                       c = 3

                       b = 3

                      d = 1

            AlCl₃  + 3NaOH  → 3NaCl  +   Al(OH)₃

O₂ in from of the NaClO₂ flouts the rule of chemical combination