22. Which of the following molecules or ions contain polar bonds?
(a) O3
(b) S8
(c) 02 2-
(d) NO3
(e) CO2
(f) H2S
(g) BH4-

Answers

Answer 1

Answer:

D NO3 Nitrate is a nitrogen oxoanion formed by loss of a proton from nitric acid.


Related Questions

The strongest intermolecular interactions between propanol (CH3CH2CH2OH) molecules arise from hydrogen bonding

a. True
b. False

Answers

The claim that the strongest intermolecular interactions between propanol molecules arises from hydrogen bonding is True.

Intermolecular forces are weaker attraction forces that are utilized to define physical characteristics of molecules such as:

boiling point temperature densitymelting points

Hydrogen bonding is an type of intermolecular forces.

It is a type of dipole-dipole interaction that only happens when a hydrogen atom is connected to the atomic element of oxygen, nitrogen, or fluorine.

From the question given, in the propanol (CH3CH2CH2OH) molecule, the hydrogen usually has a partially positive charge which attracts the partially negative charge of the oxygen.

Therefore, we can conclude that the claim is True.

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How much does a cloud weigh in pounds?

Answers

Answer:

1.1 million pounds

Explanation:

Answer:

1.1 million pounds

Explanation:

that's a lot of water above us!!

If 38.6 grams of iron react with an excess of bromine gas, what mass of FeBr2 can form?

Answers

Answer:

›› FeBr2 molecular weight. Molar mass of FeBr2 = 215.653 g/mol. This compound is also known as Iron(II) Bromide. Convert grams FeBr2 to moles or moles FeBr2 to grams. Molecular weight calculation: 55.845 + 79.904*2 ›› Percent composition by element

Explanation:

If 38.6 grams of iron react with an excess of bromine gas, the mass of FeBr2 can form is 149 grams.

What is mass?

Mass is defined as a way to gauge how much matter there is in a substance or thing. The kilogram (kg) is the fundamental SI unit of mass, while lower masses can also be measured in grams (g). Atoms make up everyday matter. A majority of an atom's mass is contained in its nucleus.

Given Fe = 38.6 g.

Fe has a molar mass = 55.845 g/mol.

Given mass/molar mass equals 38.6g/55.845gmol-1, or 0.6912 moles of iron.

The reaction is described as Fe + Br2 FeBr2.

One mole Fe yields 1 mole of FeBr2.

FeBr2 would be produced from 0.6912 moles of Fe.

FeBr2 has a molar mass of 215.65 g/mol.

Moles of FeBr2 x Molar mass of FeBr2

= 215.65 g/mole x 0.6912 mole

= 149.06 g FeBr2 produced is the formula.

Thus, if 38.6 grams of iron react with an excess of bromine gas, the mass of FeBr2 can form is 149 grams.

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A buffer was prepared by mixing 1.00 mole of ammonia and 1.00 mole of ammonium chloride to form an aqueous solution with a total volume of 1.00 liter. To 500 mL of this solution was added 30.0 mL of 1.00 M NaOH. What is the pH of this solution?

Answers

Answer:

Idek sorry

Explanation:

So sorry i think its 1.00

Do you think the offspring produced by the two processes are genetically identical to organism 1? Explain your reasoning.


Font Sizes

Answers

Answer:

No they are not

Explanation:

I believe that if you under go 1 process then you only get half of the first organism but if you undergo 2 processes then you only get 1/4 of the first organism, but imight be mistaken so sorry if it is wrong.

When the following equation is balanced, the coefficients are ________.

NH3 (g) + O2 (g) ---> NO2 (g) + H2O (g)

a. 1,1,1,1
b. 4,7,4,6
c. 2,3,2,3
d. 1,3,1,2
e. 4,3,4,3

Answers

Answer:

B

Explanation:

Option B is the correct answer. When you add 7 in front of the O2 in the left side, and then you add 4 and 6 in front of NO2 and H2O respectively, the number of oxygen atoms is the same in both sides.

can someone tell me if I got this right? so I'm supposed to Match the vocabulary terms with their detentions ​

Answers

Answer:

I hope that help you

Explanation:

energy is change from one form to another called    _energy conversion

energy can neither be created nor destroyed it can only be transformed from one form to another called --The law of conservation of energy

cause to change in form character or function called - convert

the last sentensce

energy  transformation

p-Nitrobenzaldehyde is more reactive toward nucleophilic additions than pmethoxybenzaldehyde. Explain

Answers

The presence of electron donating methoxy group in  p-methoxybenzaldehyde , makes it less reactive towards  nucleophilic additions.

Nucleophilic addition reactions that involve of p-Nitrobenzaldehyde and p-methoxybenzaldehyde both occur at the C=O functional group. The electron density around the carbonyl is a key factor that controls the reactivity of each compound.

In  p-Nitrobenzaldehyde, the electron withdrawing nitro group decreases the electron density around the carbonyl making it more vulnerable to nucleophilic attack.

In p-methoxybenzaldehyde, the methoxy group donates electrons by resonance towards the carbonyl thereby increasing the electron density around it so that it is less reactive towards nucleophillic addition reaction.

The nucleophilic attack on p-Nitrobenzaldehyde leads to more resonance structures than nucleophilic attack on p-methoxybenzaldehyde.

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Determine the molarity for each of the following Solution: 98.0 of phosphoric acids H3PO4 in 1.00L of Solution.​

Answers

The molarity of the solution is 0.01.

Brainliest?

Which of the following types of models is generally used to predict long-term events? a. idea model b. physical model c. computer model d. none of the above Please select the best answer from the choices provided A B C D Mark this and return

Answers

Answer:

C

Computer model is generally used to predict long-term events

I hope it helps.

chlorine has two isotopes chlorine-35 and chlorine-37 with average atomic mass 35.5.find the percentage abundance of each isotopes​

Answers

Answer:

75% Cl-35 and 25% Cl-37

Explanation:

chlorine has two isotopes chlorine-35 and chlorine-37 with average atomic mass 35.5.find the percentage abundance of each isotopes​

assume Cl-35 has Y%  Then Cl-37 has (100-Y) %

The weighted average of 35.5 is given by

[(35 x Y) + ((100-Y) x 37)]/100 = 35.5

so

(35 x Y) + ((100-Y) x 37) =3550

35Y + 3700 -37Y =  3550

-2Y = -15075% Cl-35 and 25% Cl-37

Y = so average weight chlorine is

75% Cl-35 and 25% Cl-37

If 25 g of Al was added to 90 g of HCl, what mass of H2 will be produced?

Answers

Answer:

im pretty sure its 2.7 gms

Explanation:

im not for sure tho

The person above me is correct but if you need an explanation here’s how they got it.

2Al+6HCl-----2AlCl3+3H2

54gms reacts with HCl to give 6gms
25gms reacts with HCl to give 2.7gms

guys help me, please

Answers

Answer:

radiation, conduction, convection, conduction

Answer:

radiation , conduction, convection, conduction

A beaker containing a green liquid is left uncovered in a laboratory for one week., After the liquid evaporates, the beaker contains a dry green solid. Was the original liquid in the beaker an element, a compound, or a mixture?

Answers

The original liquid is regarded as a mixture.

A mixture is regarded as a material which comprises of two or more

substances which are combined physically. An example is the mixture of

dye and water.

A compound on the other hand is combined chemically and not physically

which when  exposed to the same type of situation either remains in the

beaker or nothing at all is found. Since the water evaporates and a green

solid was present then it means the material was a solution in which

water(solvent) and the green solid(solute) was physically combined and not

chemically combined together.

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Glucose can be found in foods like honey. What happens to glucose in the body?
OA. It goes through chemical reactions with carbon dioxide, which provides oxygen and energy for cells.
ОВ.
It goes through a physical change in the cell's nucleus to produce oxygen.
OC.
It uses carbon dioxide in the cell's nucleus to produce a larger sugar molecule.
OD.
It goes through chemical reactions with oxygen, which forms new molecules and provides energy for cells. Will Give Brainliest No
Links

Answers

Answer:It goes through chemical reactions with oxygen, which forms new molecules and provides energy for cells.

Select all of the true statements about hydrocarbon structure.

a. Every hydrocarbon molecule is exactly the same as every other one.
b. The ability of carbon atoms to bond strongly to each other allows them to stably form ringed structures.
c. Hydrocarbons contain only single bonds that easily break down into smaller compounds.
d. Hydrocarbons are organic chemical compounds that consist of carbon and hydrogen.

Answers

Answer:

C

Explanation:

Organic compounds are the compounds which are made only from carbon and hydrogen. The correct option is option D that is hydrocarbons are organic chemical compounds that consist of carbon and hydrogen.

What is chemical Compound?

Chemical Compound is a combination of molecule, Molecule forms by combination of element and element forms by combination of atoms in fixed proportion.

There are two types of compound covalent compound and ionic in chemistry, covalent compound formed by sharing of electron and ionic compound formed by complete transfer of electron. Hydrocarbons are organic compound. Hydrocarbon can have linear chain structure, ring structure or branched structure.

Therefore,  hydrocarbons are organic chemical compounds that consist of carbon and hydrogen. The correct option is option D.

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what did mosa figure out? how did mosas mesurement prove that the ball was moving to gravity

Answers

by bouncing it

Explanation:

when you bouce a ball it hits the ground because gravity pulls it down

What is the SI unit of time?
OA.
second
OB.
minute
OC. hour
OD. day
Res

Answers

[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]

The correct choice is ~ A

S.I unit of time is Second

Kinetic energy is described as - The answers are stored energy - destroyed energy movement or created energy if you answer the question I will give you the brainiest.

Answers

1Touch and hold a clip to pin it. Unpinned clips will be deleted after 1 hour.


An object's mass is less on
the Moon than it is on Earth.

Answers

Answer:

The mass of objects remains constant throughout the universe. This is because an object is made of he same amount of matter (atoms), no matter where you take it in the universe. If you take an object from the Earth to the moon, only the weight will change.

Explanation:

Because electron delocalization stabilizes a compound, if the only way electrons can be moved is away from the most electroneagtive atom, that is better than no electron delocalization at all.

a. True
b. False

Answers

It’s is false because it is

As electron delocalization stabilizes the compound it is necessary that it takes place for compound to exist , hence the given statement is false.

What is a compound?

Compound is defined as a chemical substance made up of identical molecules containing atoms from more than one type of chemical element.

Molecule consisting atoms of only one element is not called compound.It is transformed into new substances during chemical reactions. There are four major types of compounds depending on chemical bonding present in them.They are:

1)Molecular compounds where in atoms are joined by covalent bonds.

2) ionic compounds where atoms are joined by ionic bond.

3)Inter-metallic compounds where atoms are held by metallic bonds

4) co-ordination complexes where atoms are held by co-ordinate bonds.

They have a unique chemical structure held together by chemical bonds .Compounds have different properties as those of elements because when a compound is formed the properties of the substance are totally altered.

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what is the final volume (L) of each of the following diluted solutions? a 0.70 M HCl solution prepared from 25 mL of a 6.0 M HCl solution

Answers

The final volume of diluted solution is 214.39 mL

From the question given above, the following data were obtained:

Molarity of diluted solution (M₂) = 0.7 M

Molarity of stock solution (M₁) = 6 M

Volume of stock solution (V₁) = 25 mL

Volume of diluted solution (V₂) = ?

M₁V₁ = M₂V₂

6 × 25 = 0.7 × V₂

150 = 0.7 × V₂

Divide both side by 0.7

V₂ = 150 / 0.7

V₂ = 214.39 mL

Therefore, the volume of the diluted solution is 214.39 mL

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Which substance is the limiting reactant when 24.0 g of sodium hydroxide reacts with 18.0 g of oxygen and 12.0 g of sulfur according to the following chemical equation:
2 S(s) + 3 O2(g) + 4 NaOH(aq) → 2 Na2SO4(aq) + 2 H2O(l)

Answers

Answer:

Sodium hydroxide.

Explanation:

Don't be confused by the fact that you have three reactants, you can find the limiting reagent by using the same technique you use for reactions that have two reactants.

for more info... use the link

https://socratic.org/questions/which-substance-is-the-limiting-reactant-when-2-0-g-of-sulfur-reacts-with-3-0-g-#171384

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ThAnK YoU

Which of the following is NOT a property of gases?


Which of the following is NOT a property of gases?

a. Constant shape
b. Fill their container
c. Have mass
d. Easily compressed

Answers

Answer:

a. Constant shape

HELP HELP HELP ASAPPPP!

So the question is:

Relate the electron configuration pattern to the general trends in atomic properties in the periodic table including definitions
a. Atomic radii (size)
b. Electronegativity
c. Ionization energy

Answers

Answer:

b. Electronegativity

Explanation:

electronic configuration

Cesium-137 is part of the nuclear waste produced by uranium-235 fission. The half-life of cesium-137 is 30.2 years. How much time is required for the activity of a sample of cesium-137 to fall to 8.32 percent of its original value

Answers

Answer:

la primera va con la última

HELP I BEG
What are two ways the atmosphere helps protect living things?
A. It traps enough energy from the Sun to keep Earth warm.
I B. It keeps Earth cold enough that most of the water is frozen and
can't evaporate.
O C. Most meteoroids bounce off its outer layers instead of striking
Earth's surface.
OD. It contains oxygen gas and carbon dioxide gas, which living things
need.

Answers

Answer:

I would say D and A

But i might be wrong

Answer:

A and D

Explanation:

Now try marking the other guy as brainiest.

Given the balanced chemical equation:
4 Fe + 3 O2 ----> 2 Fe2O3


How many moles of iron(III) oxide, Fe2O3 , will be produced if 12 moles of iron, Fe, are consumed.

Answers

Answer:

6 moles

Explanation:

Looking at the coefficient of the reactants/ products, the ratio of Fe consumed to Fe₂O₃ produced is 4: 2.

Fe: Fe₂O₃

= 4: 2

= 2: 1

This means that the amount of Fe₂O₃ produced is half the amount of Fe consumed, in terms of moles.

Given that 12 moles of Fe are consumed,

amount of Fe₂O₃ produced

= 12 ÷2

= 6 moles

Answer:

see explanation

Explanation:

4Fe +3O2----------2Fe2O3

if we have 12 moles of Fe, we have 3X4 mole of Fe

but since 4 moles of Fe produce 2 moles of Fe2O3,6 then 3X 4 moles of Fe produce 3X2 moles of Fe2O3 or

6 moles.

One mole of Fe2O3 has a molar mass of (56X2) +(3X16) = 112+48 = 160

One mole Fe2O3 has a molar mass of 160 gm

6 moles of Fe2O3 have a mass of 160 X6 =960 gm

an expression of Avogradros law

Answers

Answer:

The formula for Avagadro's law is V1/n1 = V2/n2, where V = volume and n = amount of gas (in moles).

Explanation:

1 ton of methanol are accidentally discharged into a lake. By how much is the biological oxygen demand of this water increased

Answers

The biological Oxygen demand of the lake is increased by 1.5 ton.

Discussion:

The reaction of methanol with Oxygen is as follows;

2CH3OH + 3O2 ==> 2CO2 + 4H2O.

In the reaction above; Since Methanol, CH3OH and Oxygen, O2 have the same molar mass; 32.

Therefore we can say since;

2 moles of CH3OH requires 3 moles of O2.

Therefore, 1 ton of methanol will require 1.5 ton of oxygen.

The biological Oxygen demand of the water is therefore increased by 1.5 ton as this is the amount of Oxygen consumed by the ethanol.

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