If you want to learn redox reaction well, you must know the standard? valence

Then, the substance with higher valence is the reducing agent and the substance with lower valence is the oxidizing agent.

Then, the topic will ask about oxidation products and reduction products.

The product after the oxidant is reduced is called reduction product. It is found that CuO is an oxidant and Cu produced by CuO is an oxidation product.

Similarly, the products produced by reducing agents are called oxidation products.

These are all things to remember when learning redox reactions.

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