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Which polyatomic ion contains the greatest number of oxygen atoms?

lex

wrote...

Posts: 30

Rep:

11 years ago

Which polyatomic ion contains the greatest number of oxygen atoms?

Which polyatomic ion contains the greatest number of oxygen atoms?
1. Acetate
2. Carbonate
3. Hydroxide
4. Peroxide

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2 Replies

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Replies

Fisk71

wrote...

#1

11 years ago

Just look at their formulas.
Acetate has two oxygen atoms
Carbonate has three
Hydroxide has one
Peroxide has two.

Therefore, Carbonate has the most oxygen atoms.

soder253

wrote...

#2

11 years ago

1) Acetate/Etanoate - CH3COO- 2 oxygen atoms
2) Carbonate - CO3 2- 3 carbon atoms
3) Hydroxide - OH- 1 carbon atom
4) Peroxide - O2 2- 2 carbon atoms

Carbonate - CO3 2- has the most oxygen atoms
so 2) is your answer

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