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10th grade

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Assign oxidation numbers to each atom in the following compounds: HI, PBr3, GeS2, KH, As2O5, H3PO4 (the numbers should be subscripts)

  • Science (chem?), not "10th grade" -

    assistance needed

  • 10th grade -

    Do you have the seven rules?

    I will go over one ..
    H3PO4
    Rule: H is +1
    Rule: O is -2 except in peroxides.
    Rule: The sum of the oxidation numbers in a compound is zero.
    3+ P -8=0 which makes P + 5

    Try some yourself, memorize the rules. We will check your work.

  • 10th grade -

    but like i don't understand what the answer is supposed to look like for these problems

  • 10th grade -

    and yeah its 10th grade chemistry

  • 10th grade -

    The answer will be a number for each atom with an associated sign. SO +1, -2 etc.

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