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expeople1 [14]
4 years ago
8

Complete the sentences to explain why the molecule ch3f is polar.

Chemistry
2 answers:
Lelu [443]4 years ago
8 0
A group of environmentalists were discussing the benefits and drawbacks associated with using fossil fuels. Which argument <span>best </span>fits the conversation? 
Fossil fuels are cheaper than alternative forms of energy.Fossil fuel reserves will never be depleted.<span>Fossil fuels are easily renewed. </span><span>Fossil fuel use does not affect the environment.</span>
Charra [1.4K]4 years ago
7 0

Answer:

Yes CH_3F is polar.

Explanation:

We know in polar molecules the Vector sum of all the individual bond dipole is non zero.

We know CH_3F is a sp_3 hybridized molecule. Therefore, its configuration is tetrahedral with 3 C-H bonds and on C-F

bond .

Since fluorine is much electronegative than hydrogen. Therefore, dipole moment of C-F bond is more than dipole moment of C-H

bond.

Therefore, vector addition of all the bonds in sp_3 hybridization is non zero due to which CH_3F is polar.

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How many moles are in 5.5 x 10-23 molecules of H2O
masha68 [24]

Answer:

0.914moles

Explanation:

The number of moles in a substance can be got by dividing the number of atoms/molecules/particles by Avagadro's constant (6.02 × 10^23).

That is;

number of moles (n) = number of atom (nA) ÷ 6.02 × 10^23

According to this question, there are 5.5 x 10-23 molecules of H2O

n = 5.5 x 10^23 ÷ 6.02 × 10^23

n = 0.914 × 10^(23-23)

n = 0.914 × 10^0

n = 0.914 × 1

n = 0.914moles

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3 years ago
An increase in temperature affects the reaction rate by &gt;decreasing the velocities of particles that collide in the reaction.
Bond [772]

Answer:

increasing the number of molecules that have sufficient kinetic energy to react.

Explanation:

An increase in temperature affects the reaction rate by increasing the number of molecules that have sufficient kinetic energy to react.

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