Question

What do you observe when dilute hcl is added to zinc metal?

Answer 1

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When you put dil. HCl in zinc pieces, standard metal acid reaction will occur. There will be formation of zinc chloride and hydrogen gas. One can observe effervescence of hydrogen gas and white zinc chloride on the zinc piece as later is insoluble in water, and act as a protective layer of further reaction.

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Answer 2

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When you put dil. HCl in zinc pieces, standard metal acid reaction will occur. There will be formation of zinc chloride and hydrogen gas. One can observe effervescence of hydrogen gas and white zinc chloride on the zinc piece as later is insoluble in water, and act as a protective layer of further reaction.