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Just add 'em up.

Example: 4-4'-methylene diphenyl diisocyanate, which is used to make polyurethane. (I could have picked something real common like water (3 atoms) or glucose (24 atoms) but I wanted to make this fun...) Its formula is:

C15H10N2O2

So we have:

15 carbon atoms

10 hydrogen atoms

2 nitrogen atoms

2 oxygen atoms

Or 29 atoms total.

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13y ago

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