Chemistry

The following ions contain three oxygen atoms:

A) carbonate, sulfite, and nitrite
B) sulfite, nitrate, and bromate
C) sulfate, hypochlorite, and carbonate
D) chlorate, iodate, and phosphite

I know I can eliminate A and C.

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  1. That's right. Nitrite(NO2-) and hypochlorite(ClO-) and sulfate [SO4]^2- don't have 3.

    B is OK. Isn't D OK too?

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  2. I know, that is why I am confused choosing an answer.

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  3. The problem is poorly worded. If you answered correctly you would answer, carbonate, sulfite, nitrate, bromate, chlorate, iodate, and phosphite.

    By merging those into answers both B and D are correct. Check to make sure there isn't a typo. That might be bromite or phosphate, chlorite, etc.

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