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garri49 [273]
4 years ago
12

28. Explain the difference between the processes of melting and freezing?

Chemistry
2 answers:
Zielflug [23.3K]4 years ago
8 0

Answer:

Explanation: The difference between the processes of melting and freezing are that freezing is the process of a substance turning from liquid to a solid whereas melting is the process of a substance turning from a solid to a liquid. In freezing coldness need to be add as heat is being removed, but in melting heat needs to be added. For example when you freeze water you have to put it in the freezer which is a cold place and it turns to a solid. When you melt chocolate you add heat to it making it turn to a liquid.

natali 33 [55]4 years ago
4 0
Freezing something makes it solid and melting something makes it a liquid
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Anon25 [30]

Answer:

Your answer would be mechanical.

Explanation:

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7 0
3 years ago
997.62 mol = 56.367 L<br> =
Galina-37 [17]
14.626 Gallons because yeah dhhsjsjshshsh
4 0
3 years ago
Why is a ylid a stable nucleophile? Select all that apply. Group of answer choices The proximity of the positively charged phosp
pogonyaev

Answer:

1)The proximity of the positively charged phosphorous and negatively charged carbon stabilizes the charges.

2) Inductive effects and resonance stabilize the negative charge

Explanation:

both atoms have full octets of electrons( I.e Carbon and say phosphorus). The result can be viewed as a structure in which two adjacent atoms are connected by both a covalent and an ionic bond; normally written X+–Y−. Ylides are thus 1,2-dipolar compounds, and a subclass of zwitterions

6 0
3 years ago
The attraction between molecules of methane in the liquid state is primarily due to
ivanzaharov [21]

Answer:

Attraction between molecules of methane in liquid state is primarily due to "London dispersion force".

Explanation:

Methane is a non-polar and aprotic molecule. Hence there is no dipole moment in methane as well as no chance of hydrogen bonding formation by methane.

We know that all molecules contain electrons. Therefore transient dipole arises in every molecule due to revolution of electrons around nucleus in a non-circular orbit. Hence an weak intermolecular attraction force is always present in every molecule as a result of this which is termed as "London dispersion force".

So, attraction between molecules of methane in liquid state is primarily due to "London dispersion force".

5 0
4 years ago
The reactivity of an atom arises primarily from the.
arlik [135]

Answer:

the average distance of the outermost electron shell from. the nucleus.

Explanation:

7 0
3 years ago
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