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It depends on how you look at it...is it lit? Is it stationary? Is it menthol? Is it nonmenthol?   it is still a cigarette so it does have chemicals....but the number could be pretty big.   I am aware that American Spirit advertizes itself as "natural" but according to the FDA, there are at … Read more
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It can also be used for basic chemical reactions, as in showing co2 (carbon dioxide) being released when added to an acid like vinegar.  basic chemistry experiment to show how co2 visibly evolves.