CHEMISTRY HIGH SCHOOL

Is electronegativity the tendency to attract electrons?

Answers

Answer 1
Answer:

Answer:

Electronegativity, symbol χ, is a chemical property that describes the tendency of an atom to attract a shared pair of electrons (or electron density) towards itself. An atom's electronegativity is affected by both its atomic number and the distance at which its valence electrons reside from the charged nucleus.

Explanation:
Answer 2
Answer:

Answer:

Yes

Explanation:

The higher the electronegativity the higher tendency to attract electrons, the lower the electronegativity the higher tendency to give away electrons/lose electrons.

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Which state of matter has a definite volume but can change its shape?A.) Solid
B.)gas
C.)liquid

Answers

Answer:

solid

Explanation:

because solid has a definite shape and volume

Answer:

Liquid

Explanation:

This is because the intermolecular forces of attraction are strong enough to hold the molecules together but not so strong as to fix them into definite positions (as in solids). Instead, they possess fluidity and hence no definite shape.

For an experiment, you place 15 g of ice with a temperature of -10 C into a cup and labela. You also place 25 g of ice at the same temperature into another cup and label it
b. Which of the following statements is true?
A) The average kinetic energy of the ice in cup A is less than that in cup
b.
B)The average kinetic energy of the ice in cup A is greater than that cup in
b.
C)The average kinetic energy of the ice cup A is equal to that in cup
b.
D)The average kinetic energies of the ice in cup A and the ice in cup B are not comparable.

Answers

Average kinetic energy is given by the formula:

KE(average) = 3/2*k*T

where k = Boltzmann constant = 1.38*10⁻²³ J/K

T = temperature in Kelvin (K)

Thus, the average KE is dependent only on temperature and independent of mass.

Since the temp in Cup A and B remains the same, the average KE will also be the same.

Ans C)
The correct answer is c. Temperature is the average kinetic energy of a sample so if two samples have the same temperature they will also have the same average kinetic energy. I hope this helps. Let me know if anything is unclear.

A chemist places a flask containing the reactants in an ice bath. This will _____ the rate of the reaction. increase decrease

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A chemist places a flask containing the reactant in an ice bath. This will decrease the rate of reaction.

Answer:

give them brainliest

Explanation:

How do we measure the acidity of rain?

Answers

just use litmus paper or a pH indicator

Which region of the visible light spectrum bends the most when passed through a diffraction grating?Red
Yellow
Green
Blue

Answers

Answer:

Red

Explanation:

Red is diffracted the most due to its long wavelength. Compared to violet which is the shortest and is diffracted the least.

The valence electrons in an atom of phosphorusin the ground state are all found in
(1) the first shell
(2) the second shell
(3) the third shell
(4) the fourth shell

Answers

The valence electrons in an atom of phosphorus in the ground state are all found in IN THE THIRD SHELL.

Phosphorus has an atomic number of 15, therefore its electronic configuration is 2, 8, 5. This configuration implies that, phosphorus electrons are distributed in three different shells and the number of electrons in the outermost shell, which is the third shell, is 5. The ground state refers to a state, where the atoms of phosphorus are not excited. Electrons move away from their ground states when they are excited.
The answer to this question is 3
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