Types of Reactions Answers

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In the reaction Mg + 2HCl Right arrow. MgCl2 + H2 which element’s oxidation number does not change?

In the reaction which element is reduced in the reaction?

CO2

Which of these is an oxidation half-reaction?

Option

Given the two half-reactions, what must be done in the next step before the reaction can be balanced?

Show the number of electrons being lost or gained.

Make sure that the charges are balanced.

List the atoms that need to be balanced.

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