When the following equation is balanced using the smallest possible integers, what is the exponent of H2O in the reaction quotient expression? Al (s) + NaOH (aq) + H2O (l) Na) Al (OH) 4) (aq) + H2 (g)

6

Explanation:

Al (s) + NaOH (aq) + H2O (l) Na) Al (OH) 4) (aq) + H2 (g)

The balanced chemical equation is given as;

2 Al (s) + 2 NaOH (aq) + 6 H2O (l) = 2 Na (Al (OH) 4) (aq) + 3 H2 (g)

The exponent of H2O in the reaction quotient expression = 6