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Zinaida [17]
3 years ago
8

BRAINLIESTTT ASAP!!! PLEASE HELP ME :)

Chemistry
1 answer:
BartSMP [9]3 years ago
5 0

Pure substances is matter that cannot be separated into any other matter. Mixtures are a compound of different matter, and can be separated into different matter. Pure substances have a constant chemical properties, while mixtures have varying chemical properties.

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The answer is 0.405 M/s

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3 years ago
When the pressure that a gas exerts
Ronch [10]

Answer:

The pressure changes from 2.13 atm to 1.80 atm.

Explanation:

Given data:

Initial pressure = ?

Final pressure = 1.80 atm

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P₁ = P₂T₁ /T₂

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P₁ = 2.13 atm

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