EVERYDAY SCIENCE

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CHEMISTRY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A sample of a substance has a mass of 7.3 g and a volume of 2.8 cm3. What is the objects density?
A
2.61 g/cm3
B
10.1 g/cm3
C
0.38 g/cm3
D
20.44 g/cm3
Explanation: 

Detailed explanation-1: -The density of the given substance is 2.61 g/cm³.

Detailed explanation-2: -or, Volume = mass/density = 64 g/0.8g/cm3 = 80cm3.

Detailed explanation-3: -✒ Therefore, Density of the substance = 2.7 g/cm³.

Detailed explanation-4: -Iron has a density of 7.9 g/cm^3.

Detailed explanation-5: -3.8 ml is the volume of an object with 3.1 g/ml density and 12 g mass.

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