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 Form 4 Acids, Bases and Salts Topical Questions and Answers

In an experiment equal amounts of magnesium powder were placed into a test-tube 1 and 2 as shown below
Explain why the amount of hydrogen gas liberated in test-tube 2 is greater than in test-tube 1 before the reaction is complete.

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Answer Text:
Hydrochloric acid (HCL) is a strong acid hence fully ionizes. Ethanoic acid is weak acid hence partially ionized. Therefore HCL has many hydrogen ions making reaction faster.