Changed superscript 2 to subscript in chemical formula of carbon dioxide (!)

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The template had a superscript 2 instead of a subscript 2 in CO2. The error in this should be self-explanatory; the right upper quadrant beside an elemental symbol is reserved for charge, not the number of atoms of that element in a formula.

Roches (talk) 19:13, 31 January 2014 (UTC)Reply