Which statement describes the VSEPR theory?
A.
Electron pairs in the valence shell of an atom have a tendency to attract other nearby electron pairs.

B.
Electrons in the valence shell of an atom exert a repulsive force on other atoms while forming a chemical bond.

C.
Electron pairs in the valence shell of an atom exert a repulsive force on all other electron pairs in the valence shell of the atom.

D.
Electrons in the valence shell exert a repulsive force while completing their octet during the formation of chemical bond.

Answers

Answer 1

Answer:

A.

Electron pairs in the valence shell of an atom have a tendency to attract other nearby electron pairs.

Hope it helps you.

Related Questions

Under which conditions do
metamorphic rocks form during regional metamorphism?

Answers

Answer:

Under regional metamorphism, metamorphic rocks are formed as a result of transformation of large areas of previously existing rocks under the influence of a large amount of heat and pressure which are created by tectonic forces.

Explanation:

Metamorphism is the phenomenon in the formation of metamorphic rocks whereby rocks are changed by heat and pressure. Now, during this process called metamorphism, rocks are bound to change either physically and chemically into a new rock. Now, there are two types of metamorphism namely;

Contact metamorphism and regional metamorphism.

We are concerned with regional metamorphism and it is defined as metamorphic rocks formed as a result of transformation of large areas of previously existing rocks under the influence of a large amount of heat and pressure which are created by tectonic forces.

To begin the experiment, Xavier washed his hands and put on safety goggles. He then measured 120 milliliters of tap water, 2.5 milliliters of baking soda, and 2.5 milliliters of citric acid. The initial temperature of the water was 23.5°C.


Next Xavier added the baking soda and citric acid to the water. The mixture immediately began to bubble vigorously, which lasted for about 30 seconds. The new temperature of the mixture was 17.7°C.

Is a chemical reaction taking place during Xavier’s experiment? How do you know?



WILL GIVE BRAINLIEST!!!!!!!!!!!!!!!

Answers

Answer:

Yes a chemical reaction is taking place.

Explanation:

There is a change in temperature along with bubbling. All signs of a chemical reaction.

Yes a chemical reaction is taking place. Temperature changes are signs of chemical reactions. Bubbling also shows chemical reactions as new substances are being created.

P +2 Fe +1 N+1 S+6 Mg +2

Answers

Answer:

= P + 2eF + N + S + 6gM + 2

Explanation:

Multiply: 1 . N = N

= P + 2eF + N + 1 . S + 6gM + 2

Multiply: 1 . S = S

= P + 2eF + N + S + 6gM + 2

Hope This Helps!

aquien le elimina las respuestas

Answers

No se :/, a ti si te paso??

helpe pls I will mark brainlest​

Answers

Answer:

What is the question needing to be answered?

Explanation:

Usually with a scientific hypothesis, you ask the question in an if, then statement. For example: If it rains outside, then the ground will be wet. It's kind of like a cause and effect statement.

3. ¿Cuál de las siguientes operaciones es correcta para calcular el número de moles de hidrógeno necesarios para producir 6 moles de NH3 según la siguiente ecuación? 3H2+N2-> 2NH3 pliss necesito ayuda :(

a)6molesNH3 x2molesNH3 /3molesH2
b) 6molesNH3 x3molesNH3 /2molesH2
c)6molesNH3 x3molesH2 /2molesNH3
d) 6 moles NH3 x 2 moles H2 / 3 moles NH3

Answers

Answer:

the answer is d that is 6×2/3

In an experiment, a student wants to increase the rate of a reaction that involves gases. Which change to the
reactants would accomplish this?
Increase the volume to decrease pressure and to increase concentration.
O Increase the volume to increase pressure and to decrease concentration.
O Decrease the volume to decrease pressure and to increase concentration.
O Decrease the volume to increase pressure and to increase concentration.

Answers

Answer:

Decrease the volume to increase pressure and to increase concentration.

Explanation:

Increasing the concentration will increase the number of collisions per second and therefore the rate of reaction.

Pls mark me as brainliest.

Answer:

The last option: Decrease the volume to increase pressure and to increase concentration.

Explanation:

You can support your choice on basis of the collision theory.  According to the collision theory, chemical reactions happen when the molecules collide with each other, in the correct orientation and with enough kinetic energy to overcome the activation energy.  As a consequence, the larger the number of collisions the larger the rate of a reaction.  In the case of a reaction that involves gases, decreasing the volume will increase the pressure and the concentration (volume is inversely related to both the pressure and the concentration) causing the molecules to be closer to each other and to collide with higher frequency, this is you will expect more collisions, and so an increase on the rate of the reaction. That is expressed by the last choice: decrease the volume to increase pressure and to increase concentration.

- Write equations for (a) the decomposition of carbon monoxide-
co_to produce carbon--and oxygen gas and (b) the synthesis reaction for the formation of carbon monoxide from carbon and Oxygen.

Answers

Explanation:

here's the answer to your question about

why do scientists classify living things? ( I need 4 reasons why) thank you take care x​

Answers

Answer:

1. To be able to easily name organisms

2. To ease communication among scientists

3. To give knowledge about the broad variety of organisms

4. To make the study of organisms easier

How is the mass of 1 mole of an element determined? O A. It is equal to the atomic mass times Avogadro's number. O B. It is the same as the element's atomic mass, but in grams. O c. It is equal to the atomic number times Avogadro's number. O D. It is the same as the element's atomic number, but in grams.​

Answers

Answer:

Avogadro's number is the number of particles in one mole of anything. In this context, it is the number of atoms in one mole of an element. It's easy to find the mass of a single atom using Avogadro's number. Simply divide the relative atomic mass of the element by Avogadro's number to get the answer in grams.

Answer:

D. It is the same as the element's atomic mass, but in grams.

Explanation:

other answer didn't give the actual option lol

How many Hydrogen (H) Atoms are in Methylene?​

Answers

Answer:

FOUR HYDROGEN ATOMS

Explanation:

Two C atoms, four H atoms, and two O atoms can also be arranged to form a methyl formate, which is used in manufacturing, as an insecticide, and for quick-drying finishes. Methyl formate molecules have one of the oxygen atoms between the two carbon atoms, differing from the arrangement in acetic acid molecules.

The Methylene group has 2 hydrogen. -CH2

Who discovered how gravity affects objects on Earth quizlet?

Answers

Answer:

Gravity, Isaac Newton discover

What is the definition of a Brønsted-Lowry base? O A. A Brønsted-Lowry base transfers a proton to something else. OB. A Brønsted-Lowry base accepts a proton from something else. C. A Brønsted-Lowry base donates an electron pair to something else. O D. A Brønsted-Lowry base accepts a hydroxide ion from something else.​

Answers

Answer:

the answer is option B it is a proton acceptor

Describe how you would find out whether copper(ii) oxide was a catalyst for the decomposition of hydrogen peroxide solution. You need to show not only that it speeds the reaction up, but that it is chemically unchanged at the end.​

Answers

Answer:

ds

Explanation:

sds

At a distance of more than three feet from gun to target, there will generally not be signs of gunpowder on the target.
True
False

Answers

The answer to your question is true
True At a distance of more than three feet from gun to target, there will generally not be signs of gunpowder on the target

While a balloon is being filled, if the temperature of the air in the balloon increases, what happens to it’s volume?

Answers

When heating up, the balloon slowly rises and flies up in the air again. Explanation: The volume of the balloon decreases by the low temperature, because the gas inside is cooled down. When heated up, the pressure in the balloon rises, the balloon expands, and will reach to its original shape.

Believe it!!

Pls follow me.

What happen when:
a. Magnesium Burns in oxygen.
b. Calcium carbonate is heated.
c. Hydrogen reacts with nitrogen at necessary condition.
d. potassium hydroxide reacts with nitric acid.
e. Carbon dioxide is treated with limewater.
Please help me to do this problem.​

Answers

a. Magnesium Burns in oxygen.

--⟩it produces light bright enough to blind you temporarily.

b. Calcium carbonate is heated.

--⟩ form calcium oxide and evolve carbon dioxide gas.

c. Hydrogen reacts with nitrogen at necessary condition.

----⟩some of the hydrogen and nitrogen will react to form ammonia.

d. potassium hydroxide reacts with nitric acid.

---⟩When potassium reacts with nitric acid then, potassium displace hydrogen from its solution and becomes colorless liquid.

e. Carbon dioxide is treated with limewater.

---⟩to form a white precipitate (appears milky) of calcium carbonate, CaCO 3.

Hope it is helpful to you

The plasma membrane is made up of a double layer of

Answers

Answer: yes

Explanation:

bilayer of lipids, oily substances found in all cells

lipids
According to the accepted current theory, known as the fluid mosaic model, the plasma membrane is composed of a double layer (bilayer) of lipids, oily substances found in all cells (see Figure 1).

______ exhibits the highest
intermolecular forces of the states of matter.

A. Solid

B. Liquid

C. Gas

D. Vacuum

Answers

I would say A) solid

fill in the blanks-
Heating of zinc oxide is a change.​

Answers

Answer:

63e52863

Explanation:

he he he

Why Don't Birds Get Electrocuted When They Land on Electric Wires?

Answers

Answer:

Birds are able to sit on electrical power lines because the electrical current essentially ignores the bird's presence and continues to travel through the wire instead of through the bird's body. A bird's body is not a good conductor of electricity.

hope i helped

when carbon is heated in a limited supply of oxygen, a gas is obtained.
1 .what is the name of this gas​

Answers

Answer:

carbon monoxide

I think its correct but I am not sure

Answer: when carbon is heated in air carbon dioxide is formed, so is incomplete combustion which results in carbon monoxide.

Explanation: but when carbon dioxide reacts with more oxygen carbon monoxide is formed i guess.

I AM A BIT SURE BUT HOPE THIS HELPSSSS!!!!

A free-moving neutron is absorbed by the nucleus of an atom. This can
cause:
A. the protons in the nucleus to begin to search for more protons.
B. the atom to become unstable and rip apart.
C. the bonds in the nucleus to become stronger and release heat.
O D. the atom to absorb more neutrons to balance the protons.

Answers

Answer:

the atom to become unstable and rip apart.

Explanation:

We define radioactivity as the spontaneous disintegration of atoms. It could occur naturally or artificially.

Artificial radioactivity occurs either by the process of nuclear fusion (combination of two light nuclei) or nuclear fission(bombarding of a heavy nucleus with a small particle such as a neutron).

When a heavy nucleus is bombarded with a neutron, the nucleus becomes unstable and rips apart producing a daughter nucleus/nuclei and more neutrons hence the process continues. This is otherwise called a chain reaction.


Write the correct IUPAC name for each of the following structures (3 marks per
structure, 1 mark deduction per error):

Answers

Answer:

Methyl group

Explanation:

From the diagram shown, we can see that the family group CH3 is attached to the structure.

This is simply called a methyl group because it is derived from me than and written that way to show the direct bonding between carbon and the 3 hydrogen atoms.

help please i am confused
It is pholem or phloem​

Answers

Answer:

phloem I believe

Explanation:

dictionary

the valency of both Oxygen and magnesium is 2 give reason

Answers

Answer:

the valency of an element is its combining capacity that is the number of electrons it requires to lose, gain or share in order to become neutral.

[ An element can become neutral if it completes it's octet. That is if an element has 8 electrons in it'd outermost shell then it is considered neutral ]

The valence of Magnesium is 2 because it requires to lose 2 electrons to become neutral.

whereas, the valence of Oxygen is 2 because it needs to gain 2 electrons to become stable.

Hence they both have the same valence.

One may say that oxygen's valence is -2 while that of Magnesium is + 2. It's meaning is still the same but "-" sign indicates that oxygen will be gaining electrons in the process of becoming stable.

A sample of 17.0 M concentrated H2SO4 stock solution with a volume of 25.0 cm3 was diluted to final concentration of 5.0 M H2SO4 solution. Calculate, what is the amount of water that would be required to dilute the concentrated H2SO4 solution to a final concentration of 5.0 M?

Answers

Answer:

60 cm³ of water

Explanation:

We'll begin by calculating the volume of the diluted solution. This can be obtained as follow:

Concentration of stock solution (C₁) = 17 M

Volume of stock solution (V₁) = 25 cm³

Concentration of diluted solution (C₂) = 5 M

Volume of diluted solution (V₂) =?

C₁V₁ = C₂V₂

17 × 25 = 5 × V₂

425 = 5 × V₂

Divide both side by 5

V₂ = 425 / 5

V₂ = 85 cm³

Thus, the volume of the diluted solution is 85 cm³

Finally, we shall determine the volume of water needed to dilute the solution. This can be obtained as follow:

Volume of stock solution (V₁) = 25 cm³

Volume of diluted solution (V₂) = 85 cm³

Volume of water =?

Volume of water = V₂ – V₁

Volume of water = 85 – 25

Volume of water = 60 cm³

Therefore, 60 cm³ of water is needed to dilute the solution.

Based on the Lewis/electron dot representation
of the two atoms, predict the ratio of metal
cationic (+) atom to nonmetal anionic (-) atom in
the compound.
.Ca.
.P.
A. 1:1
B. 3:2
C. 2:1
D. 3:1

Can someone plz tell me how to do this.

Answers

Answer:

B or C think so

Which of these is correct please help

Answers

Answer:

NH4+

Explanation:

NH4+ is the acid and NH3 is the base, so NH4+ is the stronger acid.

Using the idea of Dobereiner's triads, what conclusion could have been made about magnesium,
had beryllium and calcium already been discovered?

Answers

Answer:

Explanation: Using the idea of Dobereiner's triads, what conclusion could have been made about magnesium,

had beryllium and calcium already been discovered?

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