I need help with chemistry

[From: ] [author: ] [Date: 11-12-16] [Hit: ]

if its not polyatomic you just add ide to the end of second element.only need roman numerals if multiple charge states (transition metal etc)-Sigh people this mentally disabled shouldnt be on yahoo answers.......

How do I write these names?? It says use roman numerals if needed.

Fe2O3
Mg3N2
Cu20
ZnO
HgO

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If those are charges
Iron (II) Oxide
Magnesium Nitride
Copper (II) Oxide
Zinc (?) Oxide
Mercury (?) Oxide
if its not polyatomic you just add ide to the end of second element.
only need roman numerals if multiple charge states (transition metal etc)

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Sigh people this mentally disabled shouldn't be on yahoo answers.

1

keywords: help,need,with,chemistry,I need help with chemistry

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