When 2 mL of sodium hydroxide solution is added to few pieces of granulated zinc in a test tube and then warmed, the reaction that occurs can be written in the form of a balanced chemical equation as :
Consider the following chemical equation : a Al₂O₃ + b HCl → c AlCl₃ + d H₂O In order to balance this Chemical equation, the values of a, b, c and d must be
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