All categories

2 years ago

How does the comic strip define a polar molecule

Chemistry

1 answer:

zmey [24]2 years ago

4 0

The answer is: A molecule with a difference in electrical charge between two ends.

Electronegativity (χ) is a property that describes the tendency of an atom to attract a shared pair of electrons.

Atoms with higher electronegativity attracts more electrons towards it, electrons are closer to that atom.

For example fluorine has electronegativity approximately χ = 4 and oxygen χ = 3,5, fluorine attracts electron and he has negative charge and oxygen has positive charge.

You might be interested in

Which of the following descriptions

tangare [24]

Answer:

Explanation:

depending on the solid the shape will not change.

3 0

3 years ago

Why was Newland’s periodic table rejected?

Rina8888 [55]

He put iron with sulfur and oxygen and it had a few more errors and iron is a metal the other two are nonmetals

5 0

3 years ago

How many atoms are in 0.31 moles

padilas [110]

1 mole contains = 6.02x10^23 atoms. 0.31mole contains = 0.31x6.02x10^23 = 1.8662x10^23.

4 0

2 years ago

Which is the most polar bond? a. H-Se b. P-Br c. N-I d. No right answer.

docker41 [41]

Answer:

The answer to your question is: b. P - Br

Explanation:

Difference of electronegativities from the periodic table. The one with the highest electronegativity will be the most polar.

H = 2.2

Se = 2.55

Electronegativity = 2.55 - 2.2 = 0.35

P = 2.19

Br = 2.96

Electronegativity = 2.96 - 2.19 = 0.77

N = 3.04

I = 2.66

Electronegativity = 3.04 - 2.66 = 0.38

4 0

2 years ago

Which of the following statements explain why the van der Waals equation must be used to describe real gases? X. interactions be

8090 [49]

Answer:

Statements Y and Z.

Explanation:

The Van der Waals equation is the next one:

$nRT = (P + \frac{an^{2}}{V^{2}})(V -nb)$ (1)

The ideal gas law is the following:

$nRT = PV$ (2)

where n: is the moles of the gas, R: is the gas constant, T: is the temperature, P: is the measured pressure, V: is the volume of the container, and a and b: are measured constants for a specific gas.

As we can see from equation (1), the Van der Waals equation introduces two terms that correct the P and the V of the ideal gas equation (2), by the incorporation of the intermolecular interaction between the gases and the gases volume. The term an²/V² corrects the P of the ideal gas equation since the measured pressure is decreased by the attraction forces between the gases. The term nb corrects the V of the ideal gas equation, taking into account the volume occuppied by the gas in the total volume, which implies a reduction of the total space available for the gas molecules.

So, the correct statements are the Y and Z: the non-zero volumes of the gas particles effectively decrease the amount of "empty space" between them and the molecular attractions between gas particles decrease the pressure exerted by the gas.

Have a nice day!

5 0

3 years ago