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1 year ago

Part A

Biology

1 answer:

svetlana [45]1 year ago

4 0

Considering the definition of density, you obtain that:

Part A: the density of gold is 19.3 g/cm³.
Part B: the density of iron is 7.8 g/cm³.

<h3>Definition of density</h3>

Density is defined as the property that allows to measure the amount of mass in a certain volume of a substance.

The expression for the calculation of density is the quotient between the mass of a body and the volume it occupies:

density= mass÷ volume

It can be deduced that density is inversely proportional to volume: the smaller the volume occupied by a given mass, the higher the density.

<h3>Density in this case</h3>

In this case, you know that:

A sample of gold has mass of 38.6 grams and a volume of 2 cm³.
A sample of iron has a mass of 46.8 grams and a volume of 6 cm³.

Replacing in the definition of density:

Gold: density= 38.6 g÷ 2 cm³
Iron: density= 46.8 g÷ 6 cm³

Solving:

<u><em>Gold: density= 19.3 g/cm³</em></u>
<u><em>Iron: density= 7.8 g/cm³</em></u>

In summary, the density of gold is 19.3 g/cm³ and the density of iron is 7.8 g/cm³.

Learn more about density:

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