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Determine the oxidation number for each of the bolded elements: (a) PO33- P= (b) CaSO4 S=...

Determine the oxidation number for each of the bolded elements:

(a) PO33-

P=

(b) CaSO4

S=

(c) NaHCO3

C=

(d) BrO4-

Br=

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