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determine the answer for the equation below with correct number of significant figures: 6.78 x 5.903...

determine the answer for the equation below with correct number of significant figures:
6.78 x 5.903 x (5.489-5.470)

A 10.0 cm^3 volume of alcohol has a mass of 0.00705 kg. what is the density of the acohol in grams per cubic centimeter?
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