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For the following unbalanced reaction, A and X represent generic elements, H and Orepresent hydrogen and oxygen, respectively

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Answer #1

1) Oxidation number of H = +1 (common)

Oxidation number of O = -2 (common)

Let the oxidation number of the unknown element be x.

AqH₂o O2 : 92 + 20(+1) + 24-2) = 0 + = x= -16 a - logo X2072 : .. 236 +7(-2) = -2 a x = +6 Aq H16 On : 9x + 16(+1) + (-2) -0

Aq H₂o O₂ + 2 H₂O da Hib Ou +86- To balance H. add Ht Aq H₂O + 2 H₂O - Aq Hic Oy + 8H7 + 8e- Reduction Half equation : 2- X₂0

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