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Chemistry, 03.12.2021 18:50 SumayahAminaAnsari

The following chemicals were combined: Zinc + Hydrochloric Acid → Zinc Chloride and Hydrogen Gas Zn + 2HCl → ZnCl2 + H2

Explain why it is necessary to place a "2" in front of HCl in the reactants in the chemical equation. Use evidence and scientific reasoning to support your answer.

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