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Citrus2011 [14]
3 years ago
14

SCIENCEEEE!!!! I NEED HELPPP

Chemistry
2 answers:
seraphim [82]3 years ago
4 0
Both are physical changes.

Hope this helps!! (:
valina [46]3 years ago
3 0
These are both physical changes can I get a brain list please
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If the gas in the above system has a volume of 256 mL at a pressure
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What is the total pressure of three gases, if the partial pressures are: 2.67 mmHg, 45.29 mmHg, and 789.6 mmHg
EastWind [94]

Answer:

The total pressure of three gases is 837.56 mmHg.

Explanation:

The pressure exerted by a particular gas in a mixture is known as its partial pressure. So, Dalton's law states that the total pressure of a gas mixture is equal to the sum of the pressures that each gas would exert if it were alone:

PT = PA + PB

This relationship is due to the assumption that there are no attractive forces between the gases.

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PT= 2.67 mmHg + 45.69 mmHg + 789.6 mmHg

Solving:

PT= 837.56 mmHg

<em><u>The total pressure of three gases is 837.56 mmHg.</u></em>

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3 years ago
Differentiate between a single atom of gold and a single atom of lead. <br> (No Multiple Choice)
tatyana61 [14]
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Gold rarely forms ions, unless under extreme conditions that are not present in the human body. Gold ions, when ingested, are actually very toxic, so gold poisoning is possible. But because gold are so rare, gold poisoning is also a rare phenomenon.
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3 years ago
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