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astraxan [27]
3 years ago
13

A _____ change occurs when a substance changes phase. physical chemical nuclear user: the latent heat of vaporization of ethanol

is 200 calories/gram. this means that _____. about 200 calories of heat must be added to 1 gram of ethanol to change its temperature about 200 calories of heat must be added to 1 gram of ethanol to convert it from a solid to a liquid about 200 calories of heat must be added to 1 gram of ethanol to convert it from a liquid to a gas
Chemistry
2 answers:
Aloiza [94]3 years ago
7 0

I think it would be physical cause about 200 calories have to be added to 1 gram of ethanol to make the transformation from liquid to gas.




dezoksy [38]3 years ago
3 0
<span> physical 

</span><span>about 200 calories of heat must be added to 1 gram of ethanol to convert it from a liquid to a gas</span><span>






</span>
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Part 1: What is the final volume in milliliters when 0.730 L of a 44.8 % (m/v) solution is diluted to 23.3 % (m/v)?
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part 1 : the final volume : 1.404 L

part 2 : the initial concentration : 4.06 M

<h3>Further explanation </h3>

Dilution is the process of adding a solvent to get a more dilute solution.

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Can be formulated :

M₁V₁=M₂V₂

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part 2 :

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