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2 votes
Chlorine gas (C12) is a what?

User JP Toto
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2 Answers

1 vote
A member of the Halogen family, being the second lightest gas in the group next to fluorine. 
User Tobias Schlegel
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4 votes
Is a gaseous state of a halogen. Halogen= group 7A on the periodic table
User Carl Weis
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