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Oxidation-Reduction Multiple Choice Test

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Oxidation-Reduction

Regents Chemistry Exam review questions based on redox chemistry and electrochemical cells

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Which half-reaction correctly represents a reduction reaction?

Given the reaction: 2Na +2H2O --> 2Na+ + 2OH- + H2. which substance is oxidized?

Which change occures when an Sn^2+ ion is oxidized?

Which equation represents a redox reaction?

In an electrolytic cell, to which electrode will a positive ion migrate and undergo reduction?

In which compound does sulfur have an oxidation number of -2?

In an electrolytic cell, oxidation takes place at the

Which half-reaction correctly represents reduction?

Which redox equation is correctly balanced?

Given the reaction: Ca(s) + Cu^2+(aq) --> Ca^2+(aq) + Cu(s). What is the correct reduction half-reaction?

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