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2 years ago

Determine which pair of atoms has the greatest polarity.

2 answers:

5 0

According to the chart represented above, I have determined the pair of atoms which has the greatest polarit and I am pretty sure that it is the first option from the scale :A. Al-Si. I consider this to be correct due to their incredible difference difference in electronegativity.
Hope it helps!

vichka [17]2 years ago

5 0

Answer: Option (C) is the correct answer.

Explanation:

Atoms which have high difference in electronegativity will be more polar in nature.

This is because more electronegative atom will attract the electrons more towards itself. And, this causes development of a partial negative charge on the electronrgative and a partial positive charge will develop on the atom from which electrons have been withdrawn.

For example, N-H will be polar in nature because of the difference in electronegativity of N and H.

Whereas Al-Si, S-Cl, and C-N are all non-metals with not much difference in electronegativity.

Thus, we can conclude that N-H pair of atoms has the greatest polarity.

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What is the pressure in a 24.0-LL cylinder filled with 32.7 gg of oxygen gas at a temperature of 319 KK? Express your answer to

Blizzard [7]

Answer:

The pressure in that cylinder = 1.12atm

Explanation:

We use general gas law to calculate it. General gas law is gotten by combining Boyle's law, Charles' law and Avogadro's law. Thus

P = nRT/V

Where n = number of moles

R = the gas constant

T is the Temperature, V is the volume and P is the pressure.

Given: T = 319K, V = 24L, R = 0.0821 L.atm/K.mol

The first step is to find n using

n = mass of O2/molar mass of O2

=32.7/32

=1.0219

Now, using P =nRT/V

P = 1.0219 ×0.0821×319÷24

Therefore P = 1.12atm

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3 years ago

Element X consist of two isotopes with masses of 62.9 and 64.9. The relative atomic mass of the element is 63.6. What is th

koban [17]

Answer:

it is 50%

Explanation:

62.9x50=3145

64.9x50=3245

3245+3145=6390

6390/100=63.9

4 0

2 years ago

(06.06 MC)

RUDIKE [14]

Answer:

Explanation:

3.12

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2 years ago

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Which of the following reactions shows that the formation of NO2 requires

Bingel [31]

D is the right answer

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3 years ago

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wo reactions and their equilibrium constants are given. A + 2 B − ⇀ ↽ − 2 C K 1 = 2.57 2 C − ⇀ ↽ − D K 2 = 0.226 A+2B↽−−⇀2CK1=2.

Papessa [141]

Answer: The value of equilibrium constant for the net reaction is 11.37

Explanation:

The given chemical equations follows:

Equation 1: $A+2B\xrightarrow[]{K_1} 2C$

Equation 2: $2C\xrightarrow[]{K_2} D$

The net equation follows:

$D\xrightarrow[]{K} A+2B$

As, the net reaction is the result of the addition of first equation and the reverse of second equation. So, the equilibrium constant for the net reaction will be the multiplication of first equilibrium constant and the inverse of second equilibrium constant.

The value of equilibrium constant for net reaction is:

$K=K_1\times \frac{1}{K_2}$

We are given:

$K_1=2.57$

$K_2=0.226$

Putting values in above equation, we get:

$K=2.57\times \frac{1}{0.226}=11.37$

Hence, the value of equilibrium constant for the net reaction is 11.37

6 0

3 years ago