Chemistry, 05.02.2021 22:50 bckyanne3

The following chemicals were combined: Zinc + Hydrochloric Acid - Zinc Chloride and Hydrogen Gas Zn + 2HCI - 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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