객관식
A block has a mass of 250 g and a volume of 200 cm^3. Given that the density of water is 1.00 g/cm^3, what is the density of the block?
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1. Intro to General Chemistry
Density
객관식
Which is denser: iron or aluminum?
A
Aluminum
B
Iron
C
Neither is denser than the other
D
Both have the same density
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검증된 단계별 안내1
Recall that density is defined as mass per unit volume, given by the formula \(\text{density} = \frac{\text{mass}}{\text{volume}}\).
Understand that the density of a material depends on how closely packed its atoms are and the atomic mass of the elements involved.
Look up or recall the standard densities of iron and aluminum: iron typically has a density around 7.87 g/cm³, while aluminum has a density around 2.70 g/cm³.
Compare these values directly to determine which material is denser by seeing which has the higher density value.
Conclude that the material with the higher density value is denser; in this case, iron is denser than aluminum.
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