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1 vote
_____ is the smallest chemical unit of a type of pure substance.

(a) A cell
(b) A molecule
(c) An amino acid
(d) An atom
(e) A proton

2 Answers

5 votes
The Adom is the smallest
answered
User Reena
by
8.2k points
2 votes
An atom is the smallest chemical unit of a type of pure substance.
answered
User TruLa
by
8.2k points

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