Which of the following best describes atoms? *
1 answer:
a. Smallest basic units of matter
<u>Atom</u>: An atom is the smallest particles of a substance which may or may not exist in free state but takes part in chemical reactions.
<u>Molecule</u>: A molecule is a substance which exists in free state but doesn't take part in chemical reactions.
<u>Laws</u> <u> </u> <u>of</u> <u> </u> <u>chemical</u> <u> </u> <u>combination</u> <u>:</u> <u>-</u>
Law of conservation of mass
Law of constant proportions
Law of multiple proportions
Law of reciprocal proportions
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