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arlik [135]
3 years ago
8

Given the stretching frequencies for the C–H bonds shown in green, arrange the corresponding bonds in order of increasing streng

th.
Chemistry
2 answers:
Finger [1]3 years ago
7 0
If you are based on this graph: http://d2vlcm61l7u1fs.cloudfront.net/media/b24/b24a685f-fc36-4bbd-baaf-3c20e31c2c73/phpU1UjW1.png we can say that bond B goes first as it corresponds to 2850 cm -1 which is the lowest rate, the next bond will be A as it corresponds to 3080 cm -1 and finally it will be C bond that corresponds to the highest number that is 3300 cm -1
nevsk [136]3 years ago
4 0

The right answer is B (2850cm-1) > A (3080cm-1) > C (3300cm-1)

It is possible to reason in terms of wavelength λ rather than frequency η (which is the inverse of the wavelength  (1 / λ)).

In the case of an electromagnetic wave propagating in a vacuum, the two quantities are linked by the relation: η = c / λ.

Planck-Einstein's relation is then written:

E = h * c /  λ

where "C" is the celerity of light in the void.

In this form, the relationship indicates that the energy of a photon is inversely proportional to its wavelength. So frequency is directly proportional to energy.

Thus, radiation with a shorter wavelength than the visible (gamma rays, X-rays, ultraviolet rays) is much more energetic than long-wave radiation (infrared rays, microwaves, radio waves). where an interaction with the material radically different.

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In the diagram, which letter is altered by a catalyst? <br><br> A<br> B<br> C<br> D
Yanka [14]

Answer:

A

Explanation:

A catalyst refers to an enzyme composed of peptides in their tertiary conformation.  

The addition of a catalyst provides a new path to the reaction and the reaction proceeds in a faster way compared to the reaction without a catalyst.

The peptides are arranged in such a way that they form a pore-like structure which allows the binding of the substrate molecules by forming a temporary covalent bond. These bonds lower the activation energy of the complete reaction which is required to initiate a reaction.

In the given diagram, the activation reaction is represented by the letter "A" and therefore a catalyst will lower and alter the value of A.

Thus, Option-A is correct.

7 0
3 years ago
A molecule of alkene has the chemical formula C3H4. How many carbon-carbon double bonds are present in the molecule?Choices:123
alexdok [17]
2 Carbon double bonds
4 0
3 years ago
For the purposes of determining electron configuration of ions, when electrons are added to a neutral atom, they will inhabit or
irga5000 [103]

Answer: Aufbau principle

Explanation: Aufbau Principle suggests that in filling electrons into orbitals, lower energy orbitals must be filled before higher energy orbitals.

8 0
3 years ago
Read 2 more answers
What is the molarity of 5.63 moles of lithium in 3.25 liters of solution
luda_lava [24]

Answer:

1.73 Molar

Explanation:

The formula is Molarity=moles of solute/liters of solution, which can be written in whatever way you prefer, and examples include: M=N/V or M=mol/L.

M=N/V

M= \frac{5.63}{3.25}

Divide 5.63 by 3.25. When you calculate this, you get 1.73, therefore your answer is 1.73 molar.

5 0
3 years ago
When heating liquid materials in laboratory glassware, a student should always
Lelechka [254]

Answer:

be careful to not hurt yourself

5 0
3 years ago
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