GChegg Study l Guided s ,GChegg Study I Guided S eConsider The Reaction: × e Che

Question

GChegg Study l Guided s ,GChegg Study I Guided S eConsider The Reaction: × e Chegg Study l Guided 5 × × × nt/takeCovalentActivity.dolocatore assignment-take&itakeAssignmentSessionLocators; assignment-take Use the References to access important values it (1) Identify each of the following half reactions as either an oxidation half teaction or a reduction half-reaction half-reaction identification Cu() Cu(a) 2e (2) Write a balanced equation for the overall redox reaction Use smallest possible integer coefficients Submit Answer Retry Entire Group 7 more group attempts remaining

Explanation / Answer

1. In first reaction of Cu, electrons are lost. So, it is an example of oxidation half reaction. Oxidation is loss of electrons.

In second reaction of Br2, electrons are gained. So, it is an example of reduction half reaction. Reduction is gain of electrons.

2. To write the balanced redox reaction, we need to add both the equations.

The 2e- will get cancelled as it is present on both the sides of the reactions.

The final equation is:

Cu(s) + Br2(l) -----> Cu2+ (aq) + 2Br-(aq)

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