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NARA [144]
3 years ago
10

Which of the following statements is true?

Chemistry
1 answer:
natita [175]3 years ago
5 0

Answer:

b

Explanation:

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If you know the mass of Earth, what other single value would you need to know to calculate Earth's average density?
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Answer:

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Explanation:

Density:

Density is equal to the mass of substance divided by its volume.  In order to find the density of earth when mass is given we have to calculate its volume. The volume of earth is calculated by using the volume formula for sphere. i.e 4/3 π r³. we also require radius to find the volume and we know that

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The diameter of earth equator is 12756.75 Km. So we calculate the radius by dividing the diameter by 2. Then by putting the value of radius in 4/3 π r³ we will get the volume and then we can calculate the density of earth.

Units:

SI unit of density is Kg/m3.

Other units are given below,

g/cm3, g/mL , kg/L

Formula:

D=m/v

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m=mass

V=volume

Symbol:

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