1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
drek231 [11]
3 years ago
5

1.Consider the molecule azulene and

Chemistry
2 answers:
earnstyle [38]3 years ago
6 0

Answer:

b is right answer

Explanation:

estimate pi electron binding energry with in the huckel apporoximation

RSB [31]3 years ago
3 0
Mark Brainliest please

Answer :

The Hückel approximation is used to determine the energies and shapes of the π
π
molecular orbitals in conjugated systems. Within the Hückel approximation, the covalent bonding in these hydrocarbones can be separated into two independent "frameworks": the σ
σ
-bonding framework and the the σ
σ
-bonding framework. The wavefunctions used to describe the bonding orbitals in each framework results from different combinations of atomic orbitals. The method limits itself to addressing conjugated hydrocarbons and specifically only π
π
electron molecular orbitals are included because these determine the general properties of these molecules; the sigma electrons are ignored. This is referred to as sigma-pi separability and is justified by the orthogonality of σ
σ
and π
π
orbitals in planar molecules. For this reason, the Hückel method is limited to planar systems. Hückel approximation assumes that the electrons in the π
π
bonds “feel” an electrostatic potential due to the entire σ
σ
-bonding framework in the molecule (i.e. it focuses only on the formation of π
π
bonds, given that the σ
σ
bonding framework has already been formed).

You might be interested in
True or false , the viscosity of water is much greater than the viscosity ofhoney.
a_sh-v [17]
False... Honey is greater in velosity then water
4 0
3 years ago
Read 2 more answers
Which solution is the best conductor of electric
nadezda [96]

(C) 0.1 mole of NaCl dissolved in 1,000. mL of water

<u>Explanation:</u>

The conductivity of 0.1 mole of NaCl dissolved in 1000 mL of water will be greatest as the number of ions in 0.1 mole of NaCl will be more than 0.001, 0.05 and 0.005 moles of NaCl. Greater the number of ions in the solution, greater will be the conductivity. Specific Conductivity decreases with a decrease in concentration. Since the number of ions per unit volume that carry current in a solution decrease on dilution. Hence, concentration and conductivity are directly proportional to each other.

4 0
3 years ago
The quinine in tonic water shines a strange blue-white colour when lit with UV light. Explain what is happening here.
Alecsey [184]

Answer:

Here's what I get.

Explanation:

Quinine contains phosphors, substances that glow when they are hit with certain wavelengths of light.

The phosphors in quinine absorb UV light, which is invisible to our eyes.

Electrons in the phosphors absorb the UV energy and are excited to higher energy levels.

When the electrons drop back to lower energy levels, they emit some of this energy as a glowing blue visible light.  

5 0
3 years ago
Chem question!!<br> please help!!!
podryga [215]
Cu is the answer... :)
6 0
3 years ago
To get more electric current , we have to connect them in ______ combination.​
Sever21 [200]

Answer:

A third type of circuit involves the dual use of series and parallel connections in a circuit; such circuits are referred to as compound circuits or combination

Explanation:

3 0
2 years ago
Other questions:
  • ..........quwcwfeebthtrf
    13·1 answer
  • A substance that speeds up a chemical reaction without being part of the chemical change, itself:
    7·1 answer
  • Which phrase defines complementary goods?
    14·1 answer
  • List the types of electricity
    15·2 answers
  • What are the two main phases of cell division
    7·1 answer
  • Which of the above electron dot structures is wrong?
    15·2 answers
  • What are the limitations of bohr's model of atom​
    7·2 answers
  • What is the general trend for electronegativity
    14·1 answer
  • Balance the following equation.<br> C3H8(g) + O2(g) → CO2(g) + H2O(l)
    12·1 answer
  • Hydrogen peroxide decomposes in presence of manganese (iv) oxide to give oxygen gas i). Draw a labelled diagram to show the volu
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!