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What is a polyatomic ion? What is an example?

1 Answer

Jan 5, 2018

#NO_3^-#, #SO_4^(2-)#, #HPO_4^(2-)#, #Cr_2O_7^(2-)....#

Explanation:

...#O_2^(2-)#, #ClO_4^(-)#, #ClO_3^-#, #MnO_4^(-)#, #I_3^-#....all of these species are polyatomic ions that can form salts with counterions.....

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