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Chemistry

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when air is heated what happens to its density?

A ) It is increased because the molecules are moving together.
B ) It is increased because the molecules are moving apart.
C ) It is decreased because the molecules are moving together.
D ) It is decreased because the molecules are moving apart

Answer :

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Answer:

B.

Explanation:

The molecules are moving apart meaning that they move faster when heated and move slower when cooled

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