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vekshin1
3 years ago
13

List the compounds in decreasing boiling point order. ch3ch2ch3 ar ch3cn

Chemistry
1 answer:
leva [86]3 years ago
6 0

The boiling point depends on the strength of the intermolecular forces holding the molecules together. Greater the force, higher is the boiling point.

The intermolecular force increases in the order shown below:

ion-ion > H-bonding > dipole-dipole > London dispersion

CH3CN is a polar molecule with strong dipole-dipole forces

CH3CH2CH3 is non-polar held by london dispersion

Ar exist as a gas. It will have a lowest boiling point

Thus the order of decreasing b.pt is:

CH3CN > CH3CH2CH3 > Ar

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How does a field experiment differ from a natural experiment?
Marina CMI [18]

Answer :   behavior in a field experiment is more likely to reflect real life because of its natural setting, i.e. higher ecological validity than a lab experiment

Explanation:

8 0
3 years ago
For each of the esters provided, identify the alcohol and the carboxylic acid that reacted.
Veronika [31]

Answer:

52. The alcohol USED => methanol, CH3OH

The carboxylic acid USED => propanoic acid, CH3CH2COOH.

53. The alcohol USED => Ethanol, CH2CH3OH

The carboxylic acid USED => Formic acid, HCOOH.

Explanation:

52. To obtain Methyl propanoate, CH3CH2COOCH3, we simply react propanoic, CH3CH2COOH and methanol, CH3OH together as shown below:

CH3CH2COOH + CH3OH —> CH3CH2COOCH3 + H2O

The alcohol used: methanol, CH3OH

The carboxylic acid used: propanoic acid, CH3CH2COOH.

53. To obtain Ethyl methanoate, HCOOCH2CH3, we simply react

Formic acid, HCOOH and ethanol, CH3CH2OH together as show below:

HCOOH + CH3CH2OH —> HCOOCH2CH3 + H2O

The alcohol USED => Ethanol, CH2CH3OH

The carboxylic acid USED => Formic acid, HCOOH.

7 0
3 years ago
Which Statement correctly describes protons
____ [38]

Answer:

D.  

They have a positive charge and are present in the nucleus of an atom along with the neutrons.

explanation:

Protons have a positive charge.

7 0
3 years ago
Send Message
Veronika [31]

Answer:co2

Explanation:

7 0
3 years ago
20 mL of 80°C water is mixed with 20 mL of 0°C water in a perfect calorimeter. What is the final temperature?
dedylja [7]
To calculate for the final temperature, we need to remember that the heat rejected should be equal to the absorbed by the other system. We calculate as follows:

Q1 = Q2
(mCΔT)1 = (mCΔT)2

We can cancel m assuming the two systems are equal in mass. Also, we cancel C since they are the same system. This leaves us,

 (ΔT)1 = (ΔT)2
(T - 80) = (0 - T)
T = 40°C
8 0
3 years ago
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