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ira [324]
3 years ago
7

Question shown in picture tysm!!!​

Chemistry
1 answer:
blsea [12.9K]3 years ago
4 0

Answer:

the answer is the second one.

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List these compounds in order of decreasing carbon–carbon bond strength: hcch, h2cch2, h3cch3. rank from strongest to weakest.
ycow [4]
The strongest bond strength is of HCCH (Ethyne), then comes H₂CCH₂ (Ethene) and H₃CCH₃ (Ethane) has the least bond strength as compare to Ethyne and Ethene.

                                      HCCH > H₂CCH₂ > H₃CCH₃
               Strongest ----------------------------------------------> Weakest

Explanation:
                     
Ethyne has triple bond, one sigma bond and two pi bonds, Hence, a greater overlap is found between two carbon atoms which resulted in shortening the bond length (i.e 1.9 Angstrome). Also carbon carbon triple bond has highest force constant value i.e 15 ×10⁵ dyne/cm which is greater than carbon carbon double bond (10 ×10⁵ dyne/cm) and single bond (5 × 10⁵ dyne/cm). 
7 0
3 years ago
Which drawing is a structural model of C3Hg? ​
Aleks04 [339]

Answer:

The correct option is C

Explanation:

The structural model of C₃H₈ is that of option C.

In Structural model which can also be known as structural formula, the atoms of a molecule or compound are identified by the location of chemical bonds that exists between them. A structural formula is seen to consist of symbols. In this case, the atoms are connected by short lines. These short lines actually represent their chemical bonds. Where one, two, or three lines that  connect each element that make up the compound stands for single, double, or triple bonds, respectively.

5 0
3 years ago
Where might you find a temperature of 2 kelvin?
lyudmila [28]
100°C is 273 kelvins.

1°C is 2.73 kelvins.

I guess the closest would be north pole
7 0
4 years ago
State 3 evidences that the particles of substances are in continuous motion
lisabon 2012 [21]
The answer is gas and it involves the Kinetic molecular theory which is a model used to predict gas behavior. Molecules or atoms
4 0
4 years ago
3) 2500 pounds to Kilograms<br><br> Would this be 1,250?
Softa [21]

Answer:

1134

Explanation:

(the ones place was rounded up). 1133.981 is the unrounded answer.

8 0
3 years ago
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