Potachin Potachin

11-02-2017
Chemistry

contestada

Which of the following is not a polyatomic ion?
A. NH4
B. OH
C. NO2
D. NO3
E. None of the Above

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math38419 math38419

11-02-2017

the answer is B. OH. because "poly" means many

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Arealbot Arealbot

23-01-2019

the new version of the test the answer is changed to

Ca2+

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