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Hi could you please help with with this quick chemistry question, i haven't done this in a while so I have forgot the answers :S. Identify each of the following particles as an atom, molecule or ion: NH3 O2- SO4 2- F2 O O2 NO3- H2O Cl H+ You just need to say what they are, thank you for...

Hi could you please help with with this quick chemistry question, i haven't done this in a while so I have forgot the answers :S. Identify each of the following particles as an atom, molecule or ion: NH3 O2- SO4 2- F2 O O2 NO3- H2O Cl H+ You just need to say what they are, thank you for...