Aluminium reacts with hydrochloric acid to form aluminium chloride, AlCl 3 , and hydrogen. This is a

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Aluminium reacts with hydrochloric acid to form aluminium chloride, AlCl₃, and hydrogen. This is a redox reaction.

a. Explain in term of electrons, what is meant by a redox reaction.

b. i. Write a half-equation to show aluminium changing to aluminium ions.

ii. Write a second half-equation to show what happens to the hydrogen ions from the acid.

iii. What is the change in oxidation number when a hydrogen ion turns into a hydrogen atom?

c. Construct a balanced ionic equation for the reaction between aluminium atoms and hydrogen ions.

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Cambridge International AS And A Level Chemistry Coursebook

ISBN: 9781316637739

2nd Edition

Authors: Lawrie Ryan, Roger Norris

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Question Posted: Sep 17, 2021 02:24 AM

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Aluminium reacts with hydrochloric acid to form aluminium chloride, AlCl 3 , and hydrogen. This is a

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a A redox reaction is a chemical reaction in which one or ...View the full answer

Cambridge International AS And A Level Chemistry Coursebook

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