How can you tell if an element has been reduced? A. The number of its electrons has not changed in the reaction, B. It has a positive oxidat

Question

How can you tell if an element has been reduced? A. The number of its electrons has not changed in the reaction, B. It has a positive oxidation state in the product, C. It has more electrons in the product than in the reactant, D. It has fewer electrons in the product than in the reactant.​

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Nguyệt Ánh 5 years 2021-07-18T09:58:34+00:00 1 Answers 31 views 0

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  1. Doris
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    2021-07-18T10:00:05+00:00
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    Answer:

    C. It has more electrons in the product than in the reactant

    Explanation:

    A type of reaction is called REDOX or oxidation-reduction reaction. In this reaction, substances (element or compounds) involved are either oxidized or reduced. To be oxidized means that a substance has lost electrons and hence, have a positive oxidation state in the product side.

    On the other hand, reduction means that the substance has gained or accepted electrons, and hence has a reduced oxidation state in the product side. In other words, a reduced element will have more electrons in the product than in the reactant.

    For example, in the following equation:

    A + B = A- + B+

    A is said to be reduced because it has more electrons (1) in the product than in the reactant (0).

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )