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zhannawk [14.2K]
3 years ago
11

Which of the following is an anion?Al3+ Mg2+ O2– H Save

Chemistry
1 answer:
JulijaS [17]3 years ago
5 0
An anion is an ion with a negative charge. The minus sign, when attached to the end of an ionic compound, indicates that this has a negative charge, while a plus sign indicates a positive charge. 

O2- is the only compound listed that satisfied this. It is the anion.
Answer is 02-
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