A uranium and iron atom reside a distance r = 42.30 nm apart. the uranium atom is singly ionized; the iron atom is doubly ionized. calculate the distance r from the uranium atom necessary for an electron to reside in equilibrium. ignore the insignificant gravitational attraction between the particles

Answers

Answer 1

Using this equation:

E(U) = E(Fe) kq / r² = k2q / (R-r)² 1/r² = 2/(R-r)²

(R-r)² = 2r²

R² - 2Rr + r² = 2r²

r² + 2Rr - R² = 0 is a quadratic equation to solve
r² + 84.6r - 1789 = 0 ► solving for the quadratic equation

r² x 10 + 84.6r x 10 - 1789 x 10 = 0 x 10

refining: 10r² + 846r - 17890 = 0
so a = 10, b = 846, and c = -17890

r = -846 + √846² - 4 x 10 (-17890) / 2 x 10

r = 17.52 nm

Related Questions

The R-COOH compound behaves as an _____. acid base alcohol ester

Answers

the correct answer is base

Answer: Option (a) is the correct answer.

Explanation:

An organic compound that contains "-COOH" as the function group is known as carboxylic compound.

A carboxylic compound is an acid as it dissociates to give hydrogen ion.

[tex]R-COOH \rightarrow R-COO^{-} + H^{+}[/tex]

Whereas a compound with functional group "-OH" is known as alcohol.

And, a compound with general formula RCOOR' is known as an ester.

Thus, we can conclude that the R-COOH compound behaves as an acid.

Imagine a solution of two liquids that are so similar that their interactions together are the same as in the individual liquids. will this solution deviate positively from, deviate negatively from, or ideally follow raoult's law?

Answers

Answer:
ideally follow Raoult's law

Explanation:
Raoult's law states that: "the partial vapor pressure of each component of an ideal mixture of liquids is equal to the vapor pressure of the pure component multiplied by its mole fraction in the mixture"

It is given that:
1- the two solutions are similar
2- their interactions together are the same as in the individual liquids

This means that the solution formed will be an ideal solution. This means that the vapor pressure formed will be exactly equal to that predicted by Raoult's law.

Hope this helps :)

The most stable conformation of 1,2-dibromoethane is:

Answers

I have attached an image that shows the most stable conformation of 1,2-dibromoethane. The top image shows the line drawing of the structure and the bottom image shows the Newman project of the structure. The Newman project shows up the perspective of looking down the C1-C2 bond of the compound. From this perspective, we can see the relationship between the two bromo-substituents.

Since the bromo-substituents are the largest groups substituted on each carbon atom, these groups will want to be as far away from each other in space as possible. The result is this anti- relationship shown, where the two bromo atoms are as far away from each other as possible within the molecule to reduce the amount of steric interactions. Therefore, the anti-conformation is the most stable conformation of 1,2-dibromoethane.

What bonds to cytosine (C) in DNA.

Answers

guanine is what bonds to it

Answer as many as you can please, 40 POINTS
(Only right answers please don't guess)

1. At approximately 50°C and 0.5 kPa, what phase of matter is water in? *

A. Solid
B. liquid
C. vapor
D. both liquid and vapor

2. A sample of neon occupies a volume of 375 mL at STP. What will be the volume of the neon if the pressure is reduced to 90.0 kPa? *

A.422 mL
B.422 L
C. 333 mL
D. 333 L

3. A gas at 155 kPa and standard temperature has an initial volume of 1.00 L. The pressure of the gas rises to 500 kPa as the temperature also rises to 135°C. What is the new volume? *

A. 2.16 L
B. 0.463 L
C. 0.207 L
D. 4.82 L

4. What pressure will be exerted by 0.650 mol of a gas at 30.0°C if it is contained in a 0.700 L vessel? *

A. 2340 kPa
B. 2340 atm
C. 231 kPa
D. 231 atm

5. The vapor pressure of water is *

a. high due to very weak intermolecular attractions
b. high due to water's polarity
c. low due to water's high specific heat
d. low due to relatively strong intermolecular attractions

6. Which mixture contains the largest particles? *

a. solution
b. suspension
c. colloid
d. emulsion

7. How does evaporation of a liquid differ from boiling a liquid?

8. Describe the Tyndall Effect and how it could affect my drive home on a foggy night.

Answers

it would be to see your awnsers

Which of the following is an example of how science can solve social problems? It can stop excessive rain from occurring. It can identify the sources of polluted water. It can control the time and day when cyclones happen. It can reduce the frequency of severe weather conditions.

Answers

Answer: It can identify the sources of polluted water.

Scientific innovations and researches have been proved to be beneficial in solving the day to day social problems such as household practices such as cooking, washing of cloth, industrialization and conservation of the environment.

It can identify the sources of polluted water is the correct example of how science can solve social problems. The source of pollution can be identified by tracing back it's origin and application of filters and purifiers can help in controlling the pollution.

An example of how science can solve social problems is : ( B ) It can Identify the sources of polluted water

Scientific innovations

Several scientific innovations have made the identification and resolution of certain problems easier and one of such is the ability to Identify the dangers and sources of pollution.

Certain natural conditions such as excessive rain, cyclones and severe weather conditions can be identified but not stopped because they occur naturally.

Hence an example of how science can solve social problems is It can identify the sources of polluted water.

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PLEASE HELP ME BABES AND ASAP PLEASE!!

What special structures are needed for green plants?

A.chloroplasts and chlorophyll
B. stems and roots
C. cotyledon and embryo
D. flowers and spores

What happens during the light reaction of photosynthesis?

A.Water molecules combine to make food.
B.Air and water create energy for a plant.
C.Carbon dioxide is combined with glucose.
D. Water molecules split apart.

Answers

What special structures are needed for green plants?
A.chloroplasts and chlorophyll

What happens during the light reaction of photosynthesis?
D. Water molecules split apart. (Not 100%)

a for the first on and d for the second one ☺

Choose the solvent below that would show the greatest freezing point lowering when used to make a 0.20 m nonelectrolyte solution.

Answers

Missing question:
a) benzene, Kf = 5.12°C/m.
b) ethanol, Kf = 1.99°C/m.
c) chloroform, Kf = 4.70°C/m.
d) carbon tetrachloride, Kf = 29.9°C/m
e) diethyl ether, Kf = 1.79°C/m.
Answer is: d) carbon tetrachloride, Kf = 29.9°C/m.
b(solution) = 0,2 m.
ΔT = Kf · b(solution).
Because molality (b) is constant, greatest freezing point lowering is solution with highest Kf (the freezing point depression constant).

A carbon sink is a location that stores carbon for a long period of time. What are two carbon sinks that remove carbon from the atmosphere?

Answers

The ocean is a carbon sink and the soil is the other one. A third is plants.
Hope that helps!

Plants, the ocean, and soil serve as the primary natural carbon sinks. A portion of the carbon dioxide that plants absorb from the environment to use in photosynthesis is transferred to the soil as plants disintegrate and die.

What is carbon sinks?

Anything—natural or artificial—that gathers and stores a carbon-containing chemical compound over an extended period of time eliminates carbon dioxide from the atmosphere.

The ocean and vegetation are the two most significant carbon sinks on a global scale.

Typically, forests act as carbon sinks, absorbing more carbon than they emit. Through photosynthesis, they remove carbon from the atmosphere on a constant basis.

Another example of a carbon sink is the ocean, which takes in a lot of carbon dioxide from the atmosphere.

Therefore, the ocean, plants, and soil serve as the primary natural carbon sinks.

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Part a draw the major organic product formed when the compound shown below undergoes a reaction with an excess of etoh under acidic conditions.

Answers

Propanal undergoes nucleophilic addition with excess ethanol under acidic conditions, forming ethyl propanoate (ethyl propionate) and water through esterification.

Let's go into more detail about the reaction between propanal [tex]($CH_3CH_2CHO$)[/tex] and ethanol [tex]($EtOH$)[/tex] under acidic conditions.

1. Nucleophilic Addition of Ethanol:

- In the presence of an acid catalyst, such as sulfuric acid [tex]($H_2SO_4$)[/tex], the carbonyl group of propanal undergoes nucleophilic addition with ethanol.

- The oxygen in the carbonyl group acts as a nucleophile attacking the partially positive carbon of the carbonyl carbon.

[tex]\[ \ce{CH3CH2CHO + EtOH} \xrightarrow{acid} \ce{CH3CH2COOCH2CH3} \][/tex]

2. Formation of Hemiacetal:

- Initially, a hemiacetal is formed, which involves the addition of one molecule of ethanol to the carbonyl group.

[tex]\[ \ce{CH3CH2CHO + EtOH} \xrightarrow{acid} \ce{CH3CH(OH)CH2COOCH2CH3} \][/tex]

3. Formation of Acetal (Ester):

- The hemiacetal formed can undergo another nucleophilic addition with a second molecule of ethanol, leading to the formation of the acetal (ester) and regeneration of the acid catalyst.

[tex]\[ \ce{CH3CH(OH)CH2COOCH2CH3} \xrightarrow{acid} \ce{CH3CH2COOCH2CH3 + H2O} \][/tex]

4. Overall Reaction:

- The overall reaction involves the addition of two molecules of ethanol to propanal, resulting in the formation of ethyl propanoate (ethyl propionate) and water.

[tex]\[ \ce{CH3CH2CHO + 2 EtOH} \xrightarrow{acid} \ce{CH3CH2COOCH2CH3 + H2O} \][/tex]

The ethyl propanoate formed is an ester, and this reaction is an example of an esterification reaction under acidic conditions. It's important to note that excess ethanol is used to drive the reaction to completion, and the acidic conditions help in the protonation and activation of the carbonyl group for nucleophilic attack by ethanol.

Complete Question

Because the rock is irregularly shaped, you used the (______) method to measure its volume. A. Addition B. Direct C. Displacement

Answers

Because the rock is irregular in shape, you use the Displacement method to measure its volume.

After getting a cylindur (with measurements), you can it up half way with water.

For example: let say the cylindur is goes up to 10 cm. You will fill it up to 5 cm with water. Then when you put the rock inside, (for example), the water level goes up to 8 cm. You will then know that the rock that you put in displaces 3 cm of water

hope this helps

Answer:

Displacement

Explanation:

I NEED HELP, HELP ME PLZ!!!

Answers

I belevieve the answer is A

Hey there Cakes!

So, when you present a (oral) presentation, this would mean that you would pretty much be giving a speech, because it would be oral. (from your mouth).

Based on my understanding, I believe that the best option would actually be A.) I think that it would be best if you were not to do this because alot of times, this could get you very nervous and unconcentrated in your speech

The identity of a carbonyl-containing compound has been narrowed down to three possibilities: acetamide (ethanamide), acetone (propanone), or 1,1,1-trichloropropanone. 1h nmr and ir spectral data for the compound are given below. determine the structure, and thus the identity, of the compound that gives the observed data.

Answers

I have provided a pair of spectra, NMR and IR for one of the compounds in the question.

The NMR spectrum provides the least information, as there is only a single peak that is a singlet. All three compounds have a methyl group adjacent to a carbonyl that would appear as a singlet. However, the chemical shift is closer to 3 ppm which suggests it is being deshielded further compared to a standard carbonyl which would appear at 2 ppm. This suggests the structure is most likely 1,1,1-trichloropropanone.

Looking at the IR spectrum, we see the carbonyl stretch at approximately 1750 cm⁻¹. We also see the presence of strong stretches at 750 and 850 cm⁻¹ which are very characteristic of a C-Cl stretch. Therefore, there is enough evidence to suggest that these spectra correspond to 1,1,1-trichloropropanone.

how many molecules of h2o are equal to 97.2 g h2o

Answers

m(H₂O) = 97,2 g.
n(H₂O) = m(H₂O) ÷ M(H₂O).
n(H₂O) = 97,2 g ÷ 18 g/mol.
n(H₂O) = 5,4 mol.
N(H₂O) = n(H₂O) · Na.
N(H₂O) = 5,4 mol · 6,023·10²³ 1/mol.
N(H₂O) = 3,25·10²⁴ molecules of water.
n - amount of substance.
Na - Avogadro number.

Answer:

3.25*10^24

Explanation:

The ka of benzoic acid is 6.4 x 10–5. what is the approximate ph of a 1.5 m solution of benzoic acid?

Answers

I don't know if you need the answer explain to you but here's the answer 2.00

Answer: 2.01

Explanation:

[tex]C_6H_5COOH\rightleftharpoons C_6H_5COO^-+H^+[/tex]

initial : c 0 0

eqm: [tex]c(1-\alpha)[/tex] [tex]c\alpha[/tex] [tex]c\alpha[/tex]

[tex]K_a=\frac{c\alpha\times c\alpha}{c(1-\alpha)}[/tex]

when [tex]\alpha[/tex] is very very small the, the expression will be,

[tex]k_a=\frac{c^2\alpha^2}{c}=c\alpha^2\\\\\alpha=\sqrt{\frac{k_a}{c}}[/tex]

And,

[tex][H^+]=c\alpha[/tex]

Thus the expression will be,

[tex][H^+]=\sqrt{k_a\times c}[/tex]

Now put all the given values in this expression, we get

[tex][H^+]=\sqrt{(6.4\times 10^{-5})\times 1.5}[/tex]

[tex][H^+]=9.7\times 10^{-3}M[/tex]

[tex]pH=-log[H^+][/tex]

[tex]pH=-log[9.7\times 10^{-3}]=2.01[/tex]

which rock future is the line running between points A and B most likely to be?
A)
rock
B)
strata still
C)
dice
D)
fault

Answers

I think is D. Fault is the best answer.

Answer:

On plato this would be D a fault line

Explanation:

What type of change does electron have?

Answers

Proton—positive; electron—negative; neutron—no charge. The charge on the proton and electron are the same size but opposite. The same number of protons and electrons exactly cancel one another in a neutral atom.

If you mean charge than that would be negative

If this reaction produced 19.6 g of kcl, how much o2 was produced (in grams)?

Answers

Answer is: mass of oxygen is 12,576 grams.
Missing chemical reaction: 2KClO₃ → 2KCl + 3O₂.
m(KCl) = 19,6 g.
n(KCl) = m(KCl) ÷ M(KCl).
n(KCl) = 19,6 g ÷ 74,55 g/mol.
n(KCl) = 0,262 mol.
From chemical reaction: n(KCl) : n(O₂) = 2 : 3.
n(O₂) = 3 · 0,262 mol ÷ 2.
n(O₂) = 0,393 mol.
m(O₂) = n(O₂) · M(O₂).
m(O₂) = 0,393 mol · 32 g/mol.
m(O₂) = 12,576 g.

Why is butyl iodide preferred over butyl chloride in a williamson ether synthesis?

Answers

In Williamson ether synthesis, the reaction begins when the hydrogen from the alcohol's hydroxyl group contacts the halogen ion. Since the iodide ion is larger than the chloride ion, there is a larger chance of collision between it and the hydrogen atom, so butyl iodide is preferred over butyl chloride.

Also, Williamson synthesis is carried out at relatively high temperatures, around 50ºC-100º C. Ethyl iodide has a boiling point of 72.2ºC, so it will be in the liquid phase. Ethyl chloride has a boiling point of 12.3ºC so it will be in the gaseous phase, which is undesirable for this.

Final answer:

Butyl iodide is used in Williamson ether synthesis due to iodide ion being a better leaving group than chloride, facilitating the formation of ethers more selectively and efficiently.

Explanation:

Butyl iodide is preferred over butyl chloride in a Williamson ether synthesis because of its ease in undergoing nucleophilic substitution due to the Iodide ion (I-) being a better leaving group than the Chloride ion (Cl-).

The Iodide ion is larger and more polarizable compared to chloride, which means the carbon-iodine bond can be more easily broken during the reaction, facilitating the formation of the ether product.

Additionally, iodide is a weaker base than chloride, which reduces the chance of side reactions such as elimination, leading to a more selective and efficient ether synthesis.

When shopping for major appliances, people should look for high energy-rating numbers because those items _____.

Answers

The answer would be :Use less energy

Answer:

Use less energy.

Explanation:

Hello,

High energy consumption implies higher costs during the usage of a product, nevertheless, by avoiding this factor, money could be saved in addition of the environmental damage that is prevented in the light of the lower energy use.

Best regards.

What is the pressure in atmospheres if 1360.0g of N2O gas is compressed in a 25.0L cylinder and is stored in an outdoor shed where the temperature can reach 59.0°C in the summer?

Answers

According to this formula:
PV = nRT
when V = 25 L and n (mol) = 1360 g / 44 (mass weight of N2O)= 30.9 mol
R constant = 0.0821 and T in kelvin =59 + 273 = 332 K
By substitution in the formula:
P* 25 = 30 * 0.0821 * 332
∴ P = 32.7 atm

Final answer:

pressure of 34.19 atmospheres.

Explanation:

To find the pressure in atmospheres of 1360.0g of N2O gas compressed in a 25.0L cylinder at 59.0°C, use the Ideal Gas Law PV = nRT, where:

P is the pressure we want to find, V is the volume of the gas (25.0L),n is the number of moles of N2O,R is the ideal gas constant (0.0821 L·atm/K·mol),T is the temperature in Kelvin (59.0°C + 273.15 = 332.15 K).

First, calculate the moles of N2O:

Molecular mass of N2O = (14.0×2) + 16.0 = 44.0g/mol

Moles of N2O = 1360.0g / 44.0g/mol = 30.91mol

Then, substitute the values into the Ideal Gas Law and solve for P:

P = (nRT)/V = (30.91mol × 0.0821 L·atm/K·mol × 332.15 K) / 25.0L = 34.19 atm

Complete the sentence to explain when waves interact.

Waves interact with _____ and other _______ .

Answers

The answer is: Waves interact with objects and other waves.

There are many types of waves, with different energy and interactions witt.

In order from highest to lowest energy: gamma rays, X-rays, ultraviolet radiation, visible light, infrared radiation, and radio waves.

For example, ultraviolet wave is a type of electromagnetic radiation.

Ultraviolet has shorter waves and higher energy than violet, it lies between visible light and X-rays on the electromagnetic spectrum.

Ultraviolet radiation oscillates at rates between about 800 terahertz (THz) and 30000 THz.

To effectively stop both beta particles and gamma waves, scientists use a chamber composed of lead (Pb).

Answer:

objects and waves

Explanation:

HELP!!!! 15 pts !!! Which chemical equation below does not illustrate the Law of Conservation of Mass? Al4C3 + 3H2O yields CH4 + 4Al(OH)3 2 NaCl + CaO yields Na2O + CaCl2 3 LiOH + Fe(NO3)3 yields 3LiNO3 + Fe(OH)3 Zn + 2HCl yields ZnCl2 + H2

Answers

The last chemical equation doesn't follow the law of conservation because there isn't an equal number of zinc

What does it mean for a solution to be saturated

A. No more solute can be dissolved
B. The Concentration can be increased
C. No more solvent can be dissolved
D. The Solution can dissolve more substances

Answers

Answer:
A. No more solute can be dissolved

Explanation:
A solute is defined as a substance that is dissolved
A solvent is the substance in which the solute is dissolved

When the maximum concentration of solute is dissolved in a solvent, the solution is said to be saturated.
This means that the any more solute added to the solution will not dissolve.

Hope this helps :)

In which range of time do earthquakes occur? A. seconds B. days C. months D. millions of years

Answers

A) Seconds
Earthquakes are very frequent around the world

A
is the correct.......................

Differentiated animal cells and tissues include _____.

cuboidal cells
columnar cells
bone cells
fat cells
neurons
all of the above

Answers

The correct option is ALL OF THE ABOVE.
Differentiation of cell is said to occur when cells changes into another type of cells or cells. The process occurs during cell growth in multi cellular organisms. When a cell is fully differentiated it becomes specialized. All of the cells mentioned in the options above are differentiated cells.

Write a balanced chemical equation for the reaction of acetone (c3h6o) with oxygen (o2) to form carbon dioxide (co2) and water (h2o). select one:
a. c3h6o + 4 o2 ® 3 co2 + 3 h2o.
b. 3 co2 + 3 h2o ® c3h6o + 4 o2.
c. 6 c3h6o + 8 o2 ® 6 co2 + 6 h2o.
d. c3h6o + o2 ® co2 + h2o.

Answers

the balanced equation for this reaction is
C3H6O + 4 O4 → 3CO2 + 3H2O
but you should how to balance the original equation:
the original equation was C3H6O + O4 → CO2 + H2O
to be the equation balanced we have to make each number of the atom is equal on each side of the equation.
1) first, we start with C atom in the original equation it was 3 atom in the right side and 1 atom in the left side so we put 3CO2 instead of CO2 in the right side to make the C atoms number is equal in both sides.
the equation becomes C3H6O + O2 → 3CO2 + H2O
2) second, the H atom, it was 6 atom in the left side and only 2 in the right side so we put 3H2O instead of H2O to make it equals each other in both sides.
the equation becomes C3H6O + O2 → 3 CO2 + 3H2O
3) finally, the O atom, it was 4 atom in the right side and 9 atoms in the left side so we put 4 O2 instead of O2 to make it equals each other in both sides

so we get the final balanced equation is
C3H6O + 4O2 → 3CO2 +3H2O

The balanced chemical equation for the reaction of acetone (C3H6O) with oxygen (O2) to form carbon dioxide (CO2) and water (H2O) is C3H6O + 4 O2 → 3 CO2 + 3 H2O (option a). It preserves mass and element conservation.

The balanced chemical equation for the reaction of acetone (C3H6O) with oxygen (O2) to form carbon dioxide (CO2) and water (H2O) is:

a. C3H6O + 4 O2 → 3 CO2 + 3 H2O.

In this balanced equation, the number of carbon atoms, hydrogen atoms, and oxygen atoms on both sides is the same, ensuring that mass and element conservation are maintained.

Explanation:

- On the left side (reactants), there is one molecule of acetone (C3H6O) and four molecules of oxygen (O2).

- On the right side (products), there are three molecules of carbon dioxide (3 CO2) and three molecules of water (3 H2O).

This equation satisfies the law of conservation of mass and the law of conservation of elements because the number of each type of atom (carbon, hydrogen, and oxygen) remains the same on both sides of the equation. Option (a) is the correct balanced chemical equation for this reaction.

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1. At approximately 50°C and 0.5 kPa, what phase of matter is water in? *

A. Solid

B. liquid

C. vapor

D. both liquid and vapor

2. A sample of neon occupies a volume of 375 mL at STP. What will be the volume of the neon if the pressure is reduced to 90.0 kPa? *

A.422 mL

B.422 L

C. 333 mL

D. 333 L

3. A gas at 155 kPa and standard temperature has an initial volume of 1.00 L. The pressure of the gas rises to 500 kPa as the temperature also rises to 135°C. What is the new volume? *

A. 2.16 L

B. 0.463 L

C. 0.207 L

D. 4.82 L

4. What pressure will be exerted by 0.650 mol of a gas at 30.0°C if it is contained in a 0.700 L vessel? *

A. 2340 kPa

B. 2340 atm

C. 231 kPa

D. 231 atm

5. The vapor pressure of water is *

a. high due to very weak intermolecular attractions

b. high due to water's polarity

c. low due to water's high specific heat

d. low due to relatively strong intermolecular attractions

6. Which mixture contains the largest particles? *

a. solution

b. suspension

c. colloid

d. emulsion

7. How does evaporation of a liquid differ from boiling a liquid?

8. Describe the Tyndall Effect and how it could affect my drive home on a foggy night.

Answers

The answer would have to be the letter a for question 1

select the one that most likely has the highest rate of effusion Oxygen (O2) or hydrogen (H2):

Answers

The answer is hydrogen (H2) because i just answered this question from Edgenuit.

Match the element or group to the rule assigning its oxidation state.
(1.5 points) A. Oxygen B. Hydrogen C. Lone elements and atoms in gases D. Elements with multiple oxidation states E. Elements in groups 1, 2, and 17 and polyatomic ions
_____ 0
_____ Ionic charge
_____ +1, – 1 if bonded to a diatomic metal
_____ Almost always –2
_____ Determined by other elements in the compound

Answers

C. Lone elements and atoms in gases : 0

Elements in the free elemental have an oxidation number of zero

E. Elements in groups 1, 2, and 17 and polyatomic ions : Ionic charge

Group 1, 2, and 17 ions are formed by the alkali metals, alkaline metals and halogens respectively. Alkali metals, alkaline metals and halogens form +1, +2 and -1 ions respectively. Polyatiomic ions have -1, -2, -3 charges such as OH-, CO32-, PO43- respectively.

B. Hydrogen : +1, – 1 if bonded to a diatomic metal

H has an oxidation number of +1. H in metal hydrides such as NaH (sodium hydride) has an oxidation number of -1

A. Oxygen : Almost always –2

O has an oxidation number of -2.

D. Elements with multiple oxidation states : Determined by other elements in the compound

V (vanadium) has different oxidation which depends on the compound in which V is found.

look at the thing attached

Other Questions

revise this sentence by replacing all gerunds with infinitives. I keep telling people that i love dancing, writing, and to paint. Repeating items over and over in order to aid memory is known as ______ rehearsal Adventure Play sells an mp3 player for $18.00 and charges $3.25 per song. King Music sells a player for $23.00 and charges $2.00 per song. For how many songs will the cost be the same? Which group of musicians was important to the development and popularization of bebop music. a. Duke Ellington, Glenn Miller, Benny Goodman b. Scott Joplin, Louis Armstrong, Coleman Hawkinsc. Scott Joplin, Charlie Parker, Glenn Millerd. Dizzy Gillespie, Charlie parker, Miles Davis Why isostatic rebound slows down over time Zinc, an essential trace element for most organisms, is present in the active site of the enzyme carboxypeptidase. the zinc most likely functions as _____. I would like to sell 3 gallon cans of peaches. what would the diameter of the base of the can need to be for it to be 6 inches tall and able to hold 3 gallon(s) of liquid? (note: 1 gallon = 231 cubic inches) August is a senior at a very expensive private high school. his father is a successful stock broker and his mother is a partner in a manhattan law firm. august gets caught stealing a shirt and claims he was just seeking the thrill of stealing something. this example highlights what concept of deviance studied by jack katz? When you write $1.35 what does the decimal point means Jessie sorted the coins in her bank. She made 7 stacks of 6 dimes and 8 stacks of 5 nickels. She then found 1 dime and 1 nickel. How many dimes and nickels does Jessie have in all? In the lac operon, the repressor inhibits transcription when After giving in to her friends' request that she drink alcohol with them, 16-year-old jessica found thast she couldn't resist the pressure they exerted on her to snort cocaine. her experience best illustrates: The average age of instructors at a local college is 55, with a standard deviation of 6 years; the average salary is $37,000 with a standard deviation of $4100. which is more variable? Read the passage.[Franklin wants his descendants to know about their ancestor. His list of virtues is important to him. In fact, he says he owes the constant happiness in his life to it. He is now seventy-nine years old. He owes his good health to Temperance. He owes his fortune to Industry and Frugality. To Sincerity and Justice, he owes the confidence his country has in him.]. . . and to the joint influence of the whole mass of the virtues, even in the imperfect state he was able to acquire them, all that evenness of temper, and that cheerfulness in conversation, which makes his company still sought for, and agreeable even to his younger acquaintance. I hope, therefore, that some of my descendants may follow the example and reap the benefit.At the end of The Autobiography, what consolation does Benjamin Franklin offer himself when he realizes that he will never be perfect?He acknowledges that he grew wealthy with his inventions.He realizes the effort made him a better and happier man.He is pleased that he has become a well-known statesman. A common feature of new experimental treatments for major depressive disorder, such as deep brain stimulation (dbs), vagus nerve stimulation (vns), and transcranial magnetic stimulation (tms), is that: Which of the following was not an influence on the people in Latin America who sought independence in the 19th century? (5 points)A. The EnlightenmentB. The Mexican-American WarC. The American RevolutionD. The French Revolution Which of the following is NOT a characteristic of a strong acid and a strong base?Has a [H+] higher than waterCompletely dissociates in waterHas a pH at the extreme end of the scaleIs corrosive to most metals Ga2O3(s) + 3SOCl2(l) --> 2GaCl3(s) +3SO2 In a certain reaction, 71.8 g of Ga2O3 is reacted with 110.8 g SOCl2.The GaCl3 produced is collected and its mass founded to be 97.66 g. What is the theoretical yield of GaCl3? When dealing with a client who has impaired hearing, where would the nurse sit to facilitate lip reading? How did religious practices of ancient India influence the modern world?