Which List of Items Contains Only Ions

question 8

Multiple Choice

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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