Hydrochloric acid is added to a beaker containing a piece of zinc. Zinc chloride is formed and hydrogen gas is released. This is an example of:A.a chemical reaction B.a physical changeC.Crystallization D.None of these
Question
Hydrochloric acid is added to a beaker containing a piece of zinc. Zinc chloride is formed and hydrogen gas is released. This is an example of:A.a chemical reaction B.a physical changeC.Crystallization D.None of these
Solution
In this scenario, hydrochloric acid is added to a beaker containing a piece of zinc. This is a chemical reaction because a new substance, zinc chloride, is formed. Additionally, hydrogen gas is released as a product of the reaction. Therefore, the correct answer is A. a chemical reaction.
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