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Andreas93 [3]
2 years ago
14

Which of the following physical changes is not an example of a change in state?

Chemistry
1 answer:
Nat2105 [25]2 years ago
3 0

Answer:

Option

Explanation:

Rock is broken into piece but thestate is normal

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Your dad is working on creating a brick border for the lake in your backyard each brick has a mass of 100 g and a volume of 20 c
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Answer:

5000kg/m³

Explanation:

density=mass/volume

d=m/v

d=100/20

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g/cm³*1000=kg/m³

5g/m³*1000=5000kg/m³

4 0
2 years ago
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Do you think that the mole should be considered a base unit in the SI system?

The mole is not a base unit on a par with the six property base units; it cannot be used in significant physical–chemical comparisons until the subscript parameter p in mole-of-Ep has been given a certain “value”."

Explanation:

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What is the mass of helium atom whose atomic weight is 4.003 g/mol?
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What is the role of roughages in the balanced diet​
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