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10 May, 14:22

What is the oxidation number of B in H3BO3?

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  1. 10 May, 15:52
    0
    The oxidation number of the elements should be equal to zero or the charge of the compound when summed together. In this case, the overall charge is zero. Oxygen has a charge of - 2, a total of - 6, H has charge of + 1, a total of + 3 so B must have a charge of + 3 to make the overall charge equal to zero
  2. 10 May, 18:14
    0
    H3BO3

    H = + 1

    B = + 3

    O = - 2
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