When balancing chemical equations the number of atoms of each element must be the same for both sides (reactants and products) of the chemical equation.
Al(OH)3(s) + HCl(aq) → AlCl3(aq) + H2O(l)
Several brands of antacids use Al(OH)3 to react with stomach acid, which contains primarily HCl: Al(OH)3(s) + HCl(aq) → AlCl3(aq) + H2O(l). Balance this equation.
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