use valence bond theory to explain the bonding in f2, hf, and clbr. sketch the overlap of the atomic orbitals involved in the bonds.

Answers

Answer 1

The valence bond theory involves the combination of atomic orbitals.

What is the Valence bond theory?

We know that the valence bond theory has to do with the combination of the atomic orbitals so as to form compounds. The main kernel of this theory is that atomic orbitals that have the appropriate energy are combined together to produce the required molecular orbitals of the compound.

We can see that that the formation of the fluorine molecule involves the combination of two p orbitals, the combination of the hydrogen fluoride molecule involves the combination of an s and a p orbital just as the formation of ClBr involves the combination of two p orbitals.

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Related Questions

Which intermolecular force(s) do the following pairs of molecules experience? (Consider asking yourself which molecule in each pair is dominant?)

Answers

A) The intermolecular force between acetone and ethanol are London dispersion, Dipo-dipole, and hydrogen bonding.

B) The intermolecular force between pentane and hexane is London dispersion.

C) The intermolecular force between pentanol and water are London dispersion, Dipo-dipole, and hydrogen bonding.

What are intermolecular forces?

An intermolecular force can be described as the force that the interaction between molecules, including the electromagnetic forces which act between atoms and other types of neighboring particles such as atoms or ions.

Intermolecular forces are generally weak relative to intramolecular forces the forces which held molecules together. The covalent bond which is involving the mutual sharing of electron pairs between atoms is much stronger than the intermolecular forces between neighboring molecules.

Attractive intermolecular forces are hydrogen bonding, Ion-dipole forces, ion-induced dipole forces, and London dispersion force.

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what is the maximum wavelength of photon that will eject a ground state electron from a hydrogen atom?

Answers

From the calculation, the  maximum wavelength of photon that will eject a ground state electron from a hydrogen atom is 9.5 * 10^-8 m.

What is the energy of the ground state of hydrogen?

We know that the hydrogen atom has electrons that are in it at different energy levels. The lowest energy level of the photon is what we call the ground state of the electron.

The energy of the ground state of the hydrogen atom has an energy of about 13.6eV or 2.08 * 10^-18 J. Then we know that;

E = hc/λ

E = energy of the photon

h = Plank's constant

c = Speed of ight

λ = wavelength

λ = hc/E

λ = 6.6 * 10^-34 * 3 * 10^8/ 2.08 * 10^-18

λ = 9.5 * 10^-8 m

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A gaseous mixture contains 449.0 Torr H2(g), 327.5 Torr N2(g), and 89.5 Torr Ar(g). Calculate the mole fraction, , of each of these gases.

Answers

Answer:

XH2 = 0.5185; XN2 = 0.3782; XAr = 0.103

Explanation:

Let's say the mole fraction is Xi, i is individual gas, and Pi is partial pressure.

[tex]X_i=\frac{P_i}{P_{total}}[/tex]

Ptotal is all the pressure added together, which is:

449.0torrH2 + 327.5torrN2 + 89.5torrAr = 866.0torr

From this point, it's pretty simple, just plug the values into the equation (watch out sig figs):

XH2 = 449.0torr/866.0torr = 0.5185
XN2 = 327.5torr/866.0torr = 0.3782
XAr = 89.5torr/866.0torr = 0.103

4. What mass of iron starting at 100.0 oC must be added to 50.0 g of water at 25.0 oC to increase the water’s temperature to 65.0 oC? Iron’s specific heat capacity is 0.450 J/(g oC).

Answers

The mass of iron starting at 100°C to increase the water’s temperature to 65.0°C is 531.3g.

How to calculate mass?

The mass of a substance can be calculated using the following expression;

Q = mc∆T

mc∆T (water) = - mc∆T (metal)

According to this question, a specific mass of iron added to 50.0g of water at 25.0°C to increase the water’s temperature to 65.0°C. The mass can be calculated as follows:

50 × 4.184 × (65 - 25) = -{m × 0.450 × (65 - 100)}

8368 = 15.75m

m = 531.3g

Therefore, 531.3g is the mass of the iron.

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Select all the statements that correctly describe atomic orbitals. Check all that apply. Electrons in the first energy level, closest to the nucleus, are highest in energy. An orbital can contain a maximum of two electrons. A p orbital is spherical in shape. p orbitals are always found in groups of 3. An s orbital is lower in energy than a p orbital of the same energy level.

Answers

Statements which correctly describe atomic orbitals are an orbital can contain a maximum of two electrons, p orbitals are always found in groups of 3. An s orbital is lower in energy than a p orbital of the same energy level.

What is an energy level?

Electrons present in an atom revolve in different orbits which are stationary states and are also called as energy levels. The energy levels are numbered as integers which are also called as principal quantum numbers.

Energy of the stationary state is given as E= -R

1/n² where R

is the Rydberg's constant. When an electron is excited, and it moves from lower to higher energy levels there is absorption of energy, while when it moves from higher energy level to lower energy level it radiates or gives out energy in the form of radiation.

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What is the shirt notation for Ba2+

Answers

for Ba2+ there will be two electrons less from Ba metal, and the valence shell will be 6s, so two electrons are removed from the 6s orbital.

So, the electronic configuration of Ba2+ is 1s22s22p63s23p63d104s24p64d105s25p65d10.

Hi can anyone please answer this!

Answers

Ai. The car's initial kinetic energy is 22657.94 J

Aii. The car's initial potential energy is 939960.1 J

B. The car's final kinetic energy is 171420.38 J

C. The car's change in kinetic energy is 148762.44 J

Ai. How do I determine the car's initial kinetic energy?

We can obtain the initial kinetic energy of the car as illustrated below:

Mass (m) = 1250 lb = 1250 × 0.453592 = 566.99 Kginitial Velocity (u) = 20 mi/h = 20 × 0.44704 = 8.94 m/sInitial Kinetic energy (KE₁) =?

KE₁ = ½mu²

KE₁ = ½ × 566.99 × 8.94²

KE₁ = 22657.94 J

Aii. How do I determine the car's initial potential energy?

The car's initial potential energy can be obtained as shown below:

Mass (m) = 566.99 KgHeight (h) = 555 ft = 555 × 0.3048 = 169.164 mAcceleration due to gravity (g) = 9.8 m/s² Initial Potential energy (PE₁) = ?

PE₁ = mgh

PE₁ = 566.99 × 9.8 × 169.164

PE₁ = 939960.1 J

B. How do I determine the car's final kinetic energy?

The final kinetic energy of the car can be obtained as illustrated below:

Mass (m) = 1250 lb = 1250 × 0.453592 = 566.99 Kginitial Velocity (u) = 55 mi/h = 55 × 0.44704 = 24.59 m/sFinal Kinetic energy (KE₂) =?

KE₂ = ½mv²

KE₂ = ½ × 566.99 × 24.59²

KE₂ = 171420.38 J

C. How do I determine the car's change in kinetic energy?

The change in the kinetic energy of the car can be obtained as follow:

Initial Kinetic energy (KE₁) = 22657.94 JFinal Kinetic energy (KE₂) = 171420.38Change in kinetic energy (ΔKE) =?

ΔKE = KE₂ - KE₁

ΔKE = 171420.38 - 22657.94

ΔKE = 148762.44 J

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A 2.0 L tank contains 0.25 mol of argon. The pressure inside the tank is 387 torr. What is the
temperature of the gas?

Answers

The temperature of the gas is 0.49 K.

An ideal gas is a theoretical gas composed of many randomly transferring factor particles that aren't difficult to interparticle interactions. the best gasoline idea is beneficial because it obeys the precise gas law, a simplified equation of country, and is amenable to evaluation under statistical mechanics.

Volume is a degree of occupied three-dimensional space. it's far more frequently quantified numerically the usage of SI-derived gadgets or by way of diverse imperial gadgets. The definition of length is interrelated with the extent.

An ideal gas is described as one for which both the extent of molecules and forces between the molecules are so small that they have got no effect at the behavior of the gas. The real gas that acts almost like a really perfect gasoline is helium. that is due to the fact helium, in contrast to maximum gases, exists as an unmarried atom, which makes the van der Waals dispersion forces as low as viable

Using the ideal gas equation:-

Given;

P₁ = 387 torr = 0.509211 atm

V₁ =  2 L

mole n = 0.25 mol

T = ?

R = 8.314

PV = nRT

T = PV /nR

   = 0.509211 × 2 / 0.25 × 8.314

   = 0.49 K

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How many molecules are in 0.25 moles of Carbon (C)?​

Answers

0.25 mole of CO∗6.022∗10^23
molecules of CO/ 1 mole of CO =
1.5055∗ 10^23

1.5055•10^23 moles


Can I have Brainly

Answer:

1.5055 × 10²³ molecules of C

Explanation:

Formula we use,

→ No. of moles × 6.022 × 10²³

Now the molecules will be,

→ No. of moles × 6.022 × 10²³

→ 0.25 × 6.022 × 10²³

→ 1.5055 × 10²³

There is 1.5055 × 10²³ molecules.

explain why diluting an acid raises the pH, but diluting a base lowers the pH.

Answers

Dilution is the process of lowering concentration in a solution by including water or any other solvent.

As is well known, the basic solution has a higher concentration of hydroxide ions and an acidic solution has a higher concentration of hydrogen ions. Water causes an acidic or basic solution to change in pH.

The concentration of hydrogen ions decreases when water or another solvent is added to an acid. Due to this, the acid's pH rises to around 7. In other words, the ph rises as the acid solution is diluted.

A highly concentrated acid has a pH of about 1, but as we add water or any other solvent, the pH rises to about 7. The pH changes to 7 when it is extremely diluted and only a trace amount of acid is present.

It should be noted that dilution is the process of lowering a solute's concentration in a solution. To achieve this, we must increase the solvent without increasing the solute.

A solution is deemed acidic if the pH value is less than 7.

A solution is deemed to be basic if the pH value is greater than 7.

A solution is deemed neutral if the pH value is 7 or greater.

A diluted acid solution will have a higher pH than the undiluted solution because the concentration of hydronium ion decreases upon dilution. Similarly, a diluted base solution will have a lower pH than the undiluted solution because the concentration of hydroxyl ion decreases upon dilution.
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