What causes a molecule to have a net dipole moment?
A. The presence of only nonpolar bonds in the molecule
B. The presence of Van der Waals forces
C. The presence of a net charge that does not cancel out
D. The presence of both covalent and ionic bonds in the molecule

Answers

Answer 1

Answer:

Option C

Explanation:

Dipole moment being ac vector quantity has both magnitude and direction. All bonding forces have dipole moment ranging from partially positive to negative moment.  

Net dipole moment is the dipole moment arising after summation of all the existing dipole moments. On the basis of dipole moment it is determined whether the molecule is polar or non polar.  

Hence, option c is correct

Answer 2

Answer:c

Explanation:


Related Questions

Which equilibrium describes a reversible reaction a short time after starting the reaction with reactants only?

Answers

Answer:

Should be A

Explanation:

How many joules are produced when 45 gram of copper is placed into water that releases them temperature from 12c to 71c (c)=0.75j/g*c

Answers

Answer:

Heat energy (Q) = 1.9925 KJ = 2 KJ (Approx)

Explanation:

Given:

Mass of copper (M) = 45 gram

Change in temperature (ΔT) = 71°C - 12°C = 59°C

Specific heat (c) =0.75 j /g*c

Find:

Heat energy (Q) = ?

Computation:

Heat energy (Q) = Mass(M) × Change in temperature (ΔT) × Specific heat (c)

Heat energy (Q) = 45 gram × 59°C × 0.75 j /g*c

Heat energy (Q) = 1991.25 J

Heat energy (Q) = 1.9925 KJ = 2 KJ (Approx)

How many moles of gas fill a 2.2 L vessel with a pressure of 1.2 atm at 25.0 °C?

P=

V=

n=

R=

T=

Formula:

Answers

Answer:

Do you still need this answer? If you do i can provide it for you still

Thank you

how many Atoms of chlorine Cl are there in 3.45 mol Cl?

Answers

Answer:

2.078x10^24

Explanation:

No. of atoms of chlorine = 3.45 x 6.022x 10 ^23 x 1

= 2.078x10^24

( to find no. of atoms of, heres the formula i was taught No. of atoms = no. of moles x Avogadros constant x no. of atoms in the formula of compound)

Need help with these three pls!!!!!

Answers

True because

False

True
1) true , 2) false , 3) true

Which sentence best describes part of the process for generating electricity in a nuclear power plant?
A.Atoms Join together to produce water molecules.
B.An atom releases electrons, producing an electric current.
C.Protons and neutrons Join together to create atoms.
D.Heat is released when atomic nuclel split.​

Answers

Answer:it is D

Explanation: it is only one that makes sense

aight imma let you guys i

Answers

Answer:

b

Explanation:

it is right

Ksskskskdkejdidkk bysco sskkskskskskskskskskskkskskskskskskskkssk

what happens to the density of a box full of leaves if you crush up all the leaves and place them in another box

A the density increases

B the density stays the same

C the density decreases

D the density first decreases, then increases

Answers

Answer:

B the density stays the same

what is an example of a strong base?

HCl
NaCl
NaOH
HF

Answers

Answer:

The answer is NaOH

Explanation:

Strong bases are characterized by the fact that they dissociate completely in an aqueous solution. In this case, sodium hydroxide, NaOH, is classified as a strong base because it dissociates completely in an aqueous solution to form sodium cations, Na+, and hydroxide anions, OH−. Also, it is strong because it totally breaks in its ion. And the base which breaks totally in its atom called the strong base and which doesn't it that is a weak base.

Answer:

NaOH

Explanation:

Got it right in the test. Please mark as brainliest


HELPPP ASAPPPP PLEASEEEEEEEEEEEEEEEEEE
Determine the mass of hydrogen in a 2.5 sample of ammonia
show work using dimensional analysis

Answers

Answer:

[tex]\large \boxed{\text{0.44 g}}[/tex]  

Explanation:

1. Calculate the molar mass of ammonia

1  N = 1 × 14.01    g = 14.01    g

3 H = 3 ×  1.008 g =  3.024     

                   TOTAL = 17.03   g

2. Calculate the mass of hydrogen

So, there are 3.024 g of H in17.03 g of NH₃.

The conversion factor is either

[tex]\dfrac{\text{3.024 g H}}{\text{17.03 g NH}_{3}} \text{ or } \dfrac{\text{17.03 g NH}_{3}}{\text{3.024 g H}}[/tex]

We want to find grams of H, so we choose the one with grams of H on top.

[tex]\text{Mass of H} = \text{2.5 g NH}_{3} \times \dfrac{\text{3.024 g H}}{\text{17.03 g NH}_{3}} = \textbf{0.44 g H}\\\\\text{The mass of H is $\large \boxed{\textbf{0.44 g}}$}[/tex]

Fossil fuels, like coal, oil, and natural gas, are huge, carbon-rich deposits that essentially trapped carbon for millions of years (until humans started burning them for energy).

True or False

Answers

Answer:

True!

Explanation:

Fossil fuels are carbon based compounds present deep in the earth left millions of years ago.

hope it helps!

Why is soap mixed with water?
O A. The soap turns the water molecules into a nonpolar solvent.
B. It covalently bonds to the water so it can be washed away.
O C. Its polar end mixes with the water so it can be washed away.
D. The soap becomes chemically active when mixed with water.

Answers

Answer:

Explanation:

Soap breaks up the oil into smaller drops, which can mix with the water. It works because soap is made up of molecules with two very different ends. One end of soap molecules love water - they are hydrophilic. The other end of soap molecues hate water - they are hydrophobic.

Answer:

C. Its polar end mixes with the water so it can be washed away.

Explanation:

Just took test

Fiona is examining a material. She notices that the material has a dull appearance and feels very brittle.

Fiona is most likely examining a _______

(I'll give brainliest)

Answers

"Typical nonmetals have a dull, coloured or colourless appearance; are brittle when solid; are poor conductors of heat and electricity; and have acidic oxides." - Wikipedia

Fiona is most likely examining a nonmetal.

What is the answer ?

Answers

Answer: c

Explanation: an xray wave does have a higher frequency than an infrared wave.

Answer:

Explanation:c

how many moles of solute are present in 50.0 ml of 0.20 m kno3

Answers

Answer: Volume =  50.0 mL in liters : 50.0 / 1000 = 0.05 L

n = M x V

n = 0.20 x 0.05

n = 0.01 moles of solute

Explanation:

The number of moles of solute are present in 50.0 mL of 0.20 M of KNO₃ solution is 0.01 moles.

How do we calculate moles?

Moles will be calculated by using the molarity formula because molarity is define as the no. of moles of solute present in per liter of the solution as:

M = n/V, where

M = molarity of KNO₃ = 0.2 M

V = volume of solution = 50mL = 0.05L

Moles will be calculated as:

n = (0.2)(0.05) = 0.01 moles

Hence required moles are 0.01 moles.

To know more about molarity, visit the below link:
https://brainly.com/question/26528084

sonar measures underwater distances by using?

Answers

Answer:

By using the speed of sound in water

Explanation:

(Which is about 1500 m/s in sea depending on the sea water density )


A calcium atom differs from a calcium ion in that the atom has a greater

A)
number of electrons

B)
number of protons

C)
atomic number

D)
mass number

Answers

Answer:

A) number of electrons

Explanation:

A calcium atom has 20 electrons while a calcium ion has 18 electrons since it loses 2 electrons to form a stable octet structure. The formula of a calcium ion is Ca2+.

The number of protons does not change, neither do the number of neutrons. Atomic number is the proton number which is equals to the number of protons, hence B and C is wrong. Mass number is the number of protons and neutrons. Hence it doesnt change too and D is wrong.

Only the number of electrons change when an atom forms an ion.

The amplitude of a wave is the vertical distance from the midpoint to either the crest or the
trough of the wave
True
False

Answers

Should be true
Please mark it as brainliest

As the temperature of a fixed volume of a gas increases, the pressure will _____. A. vary inversely B. increase C. decrease D. not change

Answers

Answer:

increases

Explanation:

As the temperature of a fixed volume of a gas increases, the pressure will increase.

What is Gay Lussac's law?

According to this law at constant volume of gas, pressure is directly proportional to the temperature of the gas and it is represented as:

P ∝ T.

It means that if pressure increases then temperature is also increases or if pressure decreases then temperature will also decreases.

So, pressure of the gas increases.

To know more about Gay Lussac's law, visit the below link:
https://brainly.com/question/24002551

The only thing that makes one kind of light different from another is it’s ____?
A) frequency
B) color
C) wavelength
D) temperature

Answers

wavelength! hope it helps!

Which substance should a student apply to the skin if he or she gets splashed with an acid?

Answers

First of all, you should be wearing proper PPE when handling acid, including a lab coat, large viton or butyl rubber gloves over nitrile gloves, apron, safety eye goggles (goggles!! not just safety glasses with an eyeshield), and face shield. You should be working in a fume hood with the sash closed in front of you as much as possible. This combination of engineering controls and PPE will help avoid a lot of big problems.

What kind of energy transformations occur when you hit a coconut with a hammer

Answers

sound energy, kinetic energy,

i cant think of any more but hope this helps

Answer:

Mechanical to kinetic to sound to heat

Explanation:

Remember that all types of energy transformation end in heat

How much would this compound weight

Answers

Answer:98g/mol

Explanation:

A balloon filled with air has a volume of 6.50 L, a pressure of 0.900 atm, and a temperature of 25.0oC. If it is left out overnight, during which the temperature decreases to 15.0oC and the pressure rises to 1.15 atm, what will the volume of the balloon be?

Answers

Answer:

4.92 L

Explanation:

Rearrange ideal gas law and solve.

Change C to K.

- Hope that helps! Please let me know if you need further explanation.

EMERGENCY OR I WILL FAIL PLS HELP I WILL MARK BRAINLIEST!!!!

Answers

Answer:

1. sublimation

2.melting

3.melting  

4.sublimation

Explanation:

melting is a process when solid changes to liquid

Sublimation is the transition of a substance directly from the solid to the gas state, without passing through the liquid state.

Which of these Electromagnetic waves has the most kinetic energy and can be
dangerous?
O radio waves
O gamma rays
O ultraviolet waves
O visible light

Answers

Answer:

Gamma Rays.

Explanation:

Gamma-ray photons have the highest energy in the EMR spectrum and their waves have the shortest wavelength.

Icp need help of available

Answers

Answer:

True statements: B and C

Explanation:

A is not true NaCl is product

D is not true the reaction occurs

A typical cell phone uses wavelength of 0.36meters. How much energy does this wave have?

Answers

Answer:

55×10^-26 J

Explanation:

We can calculate the energy of the wave from

E= hc/λ

Where

h= Planks constant = 6.6×10^-34 Is

c= speed of light = 3×10^8 ms-1

λ= wavelength of the wave = 0.36 metres

Recall that cell phone use radio waves which belong to the electromagnetic spectrum hence it must possess the speed of light.

E= 6.6×10^-34 × 3×10^8/ 0.36

E= 55×10^-26 J

Hence the energy possessed by 0.36 meters wavelength radio waves is 55×10^-26 J

A pelican is born with a larger bill than other pelicans of the same species. When this pelican
breeds, some of its offspring also have larger bills. What is the most likely explanation for the
larger bills in the pelican and its offspring?


Inheritance of an quoted trait

A mutation

Natural selection

A change in diet

Answers

Answer:

natural selection

Explanation:

it is a biological selection of genes, whether dominant or negative.

Help me!

what is the biggest disadvantage of using nuclear power to produce electricity?

a. nuclear fission releases more air pollution than burning coal

b. nuclear fission produces less energy than burning coal or oil.

c. nuclear waste must be safely stored for many years

d. nuclear waste must be incinerated

Answers

The biggest disadvantage of using nuclear power to produce electricity is the nuclear waste must be safely stored for many years.

What is nuclear power?

Nuclear power is the use of nuclear reactions to produce electricity. Nuclear power can be obtained from:

Nuclear fission Nuclear decay and Nuclear fusion reactions

Nuclear reactions produces high amount of energy and many waste materials which are non degradable and will stay in the environment for the long time.

Hence, nuclear waste must be safely stored for many years.

To know more about nuclear power, visit the below link:

https://brainly.com/question/11963586

#SPJ2

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