Question
Reactants A and B react together and forms zinc chloride and hydrogen gas. Identify A and B. Write the chemical equation.
✓
Answer
The reactant A is a zinc metal and the reactant B is hydrochloric acid.
$Zn+2 HCl \longrightarrow ZnCl_2+H_2$
$Zn+2 HCl \longrightarrow ZnCl_2+H_2$
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