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natita [175]
3 years ago
13

Which of the following is not a polyatomic ion? A. NO3 − B. CaCO3 C. C2H3O2− D. C6H5COO−

Biology
2 answers:
andre [41]3 years ago
8 0
<span>B. CaCO3 is the answer</span>
Deffense [45]3 years ago
6 0
B.  Polyatomic ions always have a charge.  B doesn't have a charge thus it isn't a polyatomic ion
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