Answer:
<h2><em><u>B.) lone pairs of electrons</u></em></h2>
Explanation:
The table below indicates the “Molecular Geometry” of the central atom depending on whether the groups of electrons around it are covalent bonds to other atoms or simply lone pairs of electrons.
Answer: The octet rule is a chemical rule of thumb that reflects the observation that main group elements tend to bond in such a way that each atom has eight electrons in its valence shell, giving it the same electronic configuration as a noble gas.
Explanation:
<u>Answer:</u> The below calculations proves that the rate of diffusion of 
is 0.4 % faster than the rate of diffusion of 
<u>Explanation:</u>
To calculate the rate of diffusion of gas, we use Graham's Law.
This law states that the rate of effusion or diffusion of gas is inversely proportional to the square root of the molar mass of the gas. The equation given by this law follows the equation:
We are given:
Molar mass of 
Molar mass of 
By taking their ratio, we get:
From the above relation, it is clear that rate of effusion of is faster than
Difference in the rate of both the gases, 
To calculate the percentage increase in the rate, we use the equation:
Putting values in above equation, we get:
The above calculations proves that the rate of diffusion of is 0.4 % faster than the rate of diffusion of
All I know us the San Andreas fault line. That earthquake is far overdo
Answer:-
Ca-Cl
Explanation:-
The more the difference in electronegativity more the polar bond.
In case of Ca-Cl the difference = 3.16 - 1= 2.16
It is more than all the other combinations given.
Hence Ca-Cl is the most polar covalent bond.
