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8090 [49]
3 years ago
9

The heat of vaporization of an unknown liquid is 1,340 Joules per gram. What is the minimum number of Joules needed to change 20

.0 grams of the liquid to vapor at the boiling point?
Chemistry
1 answer:
Fed [463]3 years ago
7 0

Answer:

The temperature of a boiling liquid remains constant until all of the liquid has been converted to a gas.For example, the amount of heat necessary to change one gram of water to steam at its boiling point at one atmosphere of pressure,  the heat of vaporization of water, is approximately 540 calories.

Explanation:

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Which of the fallowing scientific claims about the bond in the molecular compound HF is most likely to be true?
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The bond is highly polar is the scientific claim about the bond in the molecular compound HF is most likely to be true.

The term polar means that there is separation of charges, the bonds will be the more polar the greater the difference in electronegativity between the bonded atoms.

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  • Therefore, the e- shared by covalence will be closer to F than to H and the molecule forms a permanent dipole.

Therefore, we can conclude that the bond is highly polar is the scientific claim about the bond in the molecular compound HF is most likely to be true.

Learn more here: brainly.com/question/6205088

6 0
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Harman [31]

Answer:

a mixture and  solution  

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•      a mixture but not a solution  

•       a mixture and a solution  

•  mixture and a solution

Explanation:

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