Which list of items contains only ions?
A)CO2, H2O, Na+, H-
B)Na+, H-, Pb, Hg
C)Pb, Hg, CO2,NaCl
D)Cl-, Na+, Ca2+, NO3-
E)NaCl, NO, CO, NaOH

Name: Which list of items contains only ions? A)CO2, H2O, Na+, H- B)Na+, H-, Pb, Hg C)Pb, Hg, CO2,NaCl D)Cl-, Na+, Ca2+, NO3- E)NaCl, NO, CO, NaOH
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Question

Quizplus · Accepted Answer

Only choice D contains ions, which are Cl-, Na+, Ca2+, and NO3-. The other choices have molecules or atoms that are not ions.

Which List of Items Contains Only Ions