9. If the highest common factor of two positive
integers is 24, then their least common
multiple cannot be
(a) 72 (b) 216 (c) 372 (d) 600
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Step-by-step explanation:The average mass of one H2O molecule is 18.02 amu. The number of atoms is an exact number, the number of mole is an exact number; they do not affect the number of significant figures. The average mass of one mole of H2O is 18.02 grams. This is stated: the molar mass of water is 18.02 g/mol.
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Answer:
the lowest is216because 216
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