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What's a reducing agent?

In the following chemical reaction, identify the oxidizing agent and the reducing agent:?

  • In the following chemical reaction, identify the oxidizing agent and the reducing agent: Cu(s) + 4HNO3(aq) Cu(NO3)2(aq) + 2NO2(g) + 2H2O(l) What is the oxidizing and reducing agent?

  • Answer:

    Using a reduction table. You can not that the HNO3(aq) is higher on the table than Cu(s). therefore HNO3 is more likely to go through reduction.. making it the oxidizing agent. Therefore the Cu(s) must be the reducing agent.

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Cu changes from oxidation state 0 to 2+, so it has been oxidized. The substance that has been oxidized is the reducing agent, because it causes the other substance to be reduced, it gives away its electrons. The oxidation state of N in HNO3 is +5 to balance the -6 from the oxygens (+1 from Hydrogen) And, in NO2, the oxidation state of the nitrogen is +4, so it has been reduced, and is the oxidizing agent. I think... I may be incorrect though, forgive me if I have been.

Mule

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