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2 years ago

Question 5 of 10

Chemistry

2 answers:

OverLord2011 [107]2 years ago

4 0

Answer:

4.2 g

Explanation:

The VOLUME of the ring is 4.2 - 4.0 = .2 ml = .2 cm^3

the MASS of the ring is this times the density

.2 cm^3 * 21 g/cm^3 = 4.2 g

Marianna [84]2 years ago

3 0

Answer:

the answer is c

Explanation:

density is mass/volume

so mass=density × volume

but we take the change is volume that is v2-v2=4.2-4=0.2ml

but the density is in gm/cm^3 so we should convert ml into cm^3. eventually they are equal so mass=21×0.2=4.2

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