Which has a greater density: an extremely small diamond used for industrial purpose such as grinding or a two-carat diamond take from an engagement ring? Explain. What assumption are you making? 16. Magnesium has a density of 1.74g/cm3.

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Explanation:

15) The both diamonds- the diamond used as a grinding tool and the two -carat diamond both have the same density because density is an intensive or intrinsic property of a substance. It does not depend on the mass of the substance present.

16) Area of magnesium = Length * width = 0.104 * 10^2 cm * 2.52 * 10^-1 cm  = 2.62 cm^2

Density = mass/area * thickness

Density * area * thickness = mass

thickness = mass/Density * area

thickness = 0.104 g/ 1.74g/cm3 * 2.62  cm^2

thickness = 0.0228 cm

i think it's letter a.