Fluorine gas a 300 K occupies a volume of 500 mL. To what temperature should it be lowered to bring the volume to 300 mL?

Answers

Answer 1
180 K

V1/T1 = V2/T2
V1 = 500 mL
T1 = 300 K
V2 = 300 mL

Solve the equation for T2 —> T2 = V2T1/V1

T2 = (300 mL)(300 K) / (500 mL) = 180 K
Answer 2

The temperature should be lowered to 300K to bring the volume to 300mL.

What is temperature?

Temperature is the degree of hotness or coldness of a place or a body. The SI unit of temperature is Kelvin.

What is volume?

Volume is the amount of space occupied by matter. The SI unit of volume is cubic metre.

Using Charles law,

V1/V2 = T1/T2

Where, V1 and T1 are the initial volume and temperature

Similarly, V₂ and T₂ are the final volume and temperature.

Given:

V1 = 500mL

T1 = 300K

V2 = 300mL

T2 = ?

V1T2/V1 = V2T1/V1

          T2 = V2T1/V1

                = 300mL x 300K/500mL

           T2 = 180K

Hence, the temperature should be lowered to 300K to bring the volume to 300mL.

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Related Questions

a student has 0.24 ml of 0.125 m solution of barium hydroxide, ba(oh)2. her assignment is to titrate the solution to the equivalence point with exactly 6 ml of hydrochloric acid. what molarity should the acid solution be?

Answers

The molarity of a solution is the number of moles of the solute in one liter of the solution. That is, the molarity of 0.1 N oxalic acid is 0.05 M.

What is the acidic solution's concentration?

Acidic solutions are those that include H3O+ ions in concentrations greater than 1 x 10-7 M.Basic substances are those with the H3O+ ion concentration is less to 1 x 10-7 M.

How is a 37% Hypotonic solution made?

100 ml od solution to 37 ml of solute.To make a 0.1N HCL solution, add 8.3 ml or 37% HCL in 1 liter with D5W or NS.12 moles/L or 12 x 36.5 equals 438 g/L or 438 mg/ml in the formula 12M (37% HCL).

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Is 4 degrees in the danger zone?

Answers

Bacteria grow the fastest at temperatures ranging from 40°F to 140°F, doubling in size in just as 20 minutes. This temperature range is commonly referred to as the "Danger Zone." Never put food out of the refrigerator for more than 2 hours.

How many degrees is the danger zone?

The danger zone is defined as the temperature range of 40-140°F (4-60°C), where bacteria grow and thrive. It is critical to keep perishables out of the danger zone in order to keep your food safe. Keep hot foods warm and cold foods cold.

The longer food is exposed to high temperatures, the more time microbes have to grow. The primary objective is to decrease the length of time TCS meals is exposed to high temperatures. If food is kept in this temperature range for four hours or more, it must be discarded.

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NH3 H3Ot NHA SO,2 CHCI3 Crude Sketch H H 2- H-N- H / H -O - H H- N - H CH H Calculations (# of valence electrons, # of bonds, etc. 5 + ( 1 X 3 ) 13 + 6 - 1 5+(1x4)-1 316) +2 + 6 = 8 = 8 = 26 = 8 Lewis Structure H +1 = H- O- H | H- N -H H : O' O: # electron groups, electron group geometry # of bonded atoms, molecular shape Resonance structures (if any) Polar or nonpolar

Answers

The compound NH₃ is tetrahedral in geometry and is non-polar. SO₂ is polar in nature and has a bend shape. CHCl₃ is tetrahedral and it is polar.

What are polar compounds?

Polar compounds are those having a permanent dipole moment. When the atoms bonded together have significant difference in electronegativity the electrons will attracts more to the highly electronegative atom and there occurs a net dipole moment results in polarity.

The ammonium ion NH₄⁺ is a tetrahedral molecule having no polarity. The dipole moments cancel each other due its tetrahedral nature. SO₂ is bend in geometry due to the presence of lone pair of electrons on oxygen atom. It is a polar compound.

The compound trichloromethane has a net dipole moment and it is polar with a tetrahedral structure.

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What are the 4 types of parabola?

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There are two types of parabolas, positive (opening up) or negative (opening down). A parabola has many key features including a vertex, x-intercept(s) and y-intercept. A vertex is the highest or lowest point on the graph, x-intercepts are where the graph crosses the x-axis (y=0) and y-intercepts are where the graph crosses the y-axis (x=0).

Parabola

A plane curve produced by a point moving in such a way that its distance from a fixed point equals its distance from a fixed-line. The standard equation of a regular parabola is y 2 = 4 a x , where a is the distance from the vertex to focus of the parabola.

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if the potential of a voltaic cell is 0.837 v, what is the free energy change when two moles of electrons are transferred in an oxidation-reduction reaction?

Answers

Gibb's free energy change is  -1,61,541Joules when two moles of electrons are transferred in an oxidation-reduction reaction.

In thermodynamics, the Gibbs free energy (or Gibbs energy ) is a thermodynamic potential that can be utilized to compute the greatest measure of work that might be performed by a thermodynamically shut framework at consistent temperature and pressure. It likewise gives an important condition to cycles, for example, substance responses that might happen under these circumstances.

For calculating free energy change, we need to know about the value of faraday constant and voltage of the cell.

We know that 1 faraday=96500Coloumb,voltage=0.837,n=2

So, free energy(ΔG)= - n × F × E°

=>ΔG= -2 × 96500× 0.837

=>ΔG= -193000×0.837

=>ΔG= -1,61,541Joules (Here negative sign shows that voltaic cell is possible in this universe).

Hence, required free energy is -1,61,541Joules.

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Is freezing point depression negative?

Answers

Yes, freezing point depression is negative because it is the decrease in the freezing point of a solvent when a non-volatile solute is added to it.

What is freezing point?

Freezing point is the temperature at which a liquid turns into a solid state. For example, water freezes at 0°C (32°F). At the freezing point, the particles of the liquid slow down to a point where they can no longer move freely and start to form a solid. This happens because the particles of the liquid form a crystal lattice structure when they reach their freezing point. The temperature at which this happens is called the freezing point. Different substances have different freezing points, depending on the type of particles that make up the substance.

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What are the redox reactions that take place?

Answers

Answer:

mitochondria

Explanation:

is that correct please answer

A thermite reaction releases large amounts of heat and light, resulting in the melting of the iron metal that forms during the reaction.
fe2o3 + 2al → al2o3 + 2fe
determine the correct mole ratio for iron (iii) oxide and aluminum based on the balanced chemical equation. fe2o3:al =

Answers

Answer:

The mole ratio for iron (iii) oxide to aluminium is

1:2

PERCENT YIELD!!!
A sodium bromide solution containing 3.0 g of sodium bromide is reacted with excess dimercury (I) acetate solution


The mass of the dry precipitate is measured to be 4.000 g. Calculate the percent yield for the precipitate.

Answers

The percent yield of the reaction would be 49.17%.

Stoichiometic problem

Sodium bromide reacts with excess dimercury (I) acetate to produce  dimercury (I) bromide precipitate and sodium acetate according to the following balanced equation:

[tex]2NaBr(aq) + Hg_2(CH_3COO)_2(aq) -- > Hg_2Br_2(s) + 2NaCH_3COO(aq)[/tex]

The mole ratio of sodium bromide to the precipitate is 2:1.

Recall that: mole = mass/molar mass.

3.0 g of sodium bromide would be equivalent to: 3.0/102.89

= 0.029 mol

The equivalent mole of the precipitate produced = 0.029/2 = 0.0145 mol

Mass of 0.0145 mol dimercury (I) bromide = 0.0145 x 560.99

                                                                     = 8.1343 grams

Percent yield = 4/8.1343

                       = 49.17%

In other words, the percent yield of the reaction is 49.17%.

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9) Copper metal, Cu(s), will spontaneously reduce which of the following?

a) Fe2+ and Ag+

b) Fe2+

c) Ag+

d) Al3+

e) Fe2+ and Al3+

Answers

Copper metal Cu(s) will spontaneously reduce Fe2+ and Al3+. So the correct option is e. Fe2+ and Al3+

Cu(s), is a reducing agent since it is able to reduce other chemicals by donating electrons. Copper has a low standard reduction potential of -0.34 V, meaning it is able to reduce the oxidation state of many other elements. This includes both Fe2+ and Al3+ ions.

In the case of Fe2+, the reduction reaction would be Cu(s) + Fe2+ --> Cu2+ + Fe(s). For Al3+, the reaction would be Cu(s) + 2Al3+ --> 2Cu2+ + Al(s). On the other hand, Cu(s) is unable to reduce either Ag+ or Fe3+ since the reduction potential for both is lower than the reduction potential of Cu(s).

Therefore the correct option will be e. Fe2+ and Al3+

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Multiple Equilibria KA Explain What is Meant by Multiple Equilibria Question Adding ammonia to an aqueous solution of magnesium hydroxide: Select the correct answer below: O prevents precipitation of Mg(OH), O encourages precipitation of MgrOH), O lowers the pH O none of the above

Answers

If adding ammonia to the magnesium hydroxide solution it will encourage the precipitation of Mg(OH)₂.

Adding ammonia NH₃ to the solution increases the hydroxide concentration.

NH₃ (aq) + H₂O (l) → NH₄⁺ (aq) + OH⁻ (aq)

Increasing the hydroxide concentration will encourage the precipitation of Mg(OH)₂ so that the hydroxide concentration is maintained in the solution.

Ammonia is widely used in the urea production process, the chemical industry, and the pulp and paper industry. Ammonia is an inorganic compound that is needed as an energy source in the nitrification process of aerobic bacteria.

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Two pieces of the same metal are placed on a table. The pieces of metal have the same density, mass, and texture. Which characteristic must be the only difference between the two samples?.

Answers

The characteristic must be the only difference between the two samples is B-they have different dimensions.

A metallic is a material that, whilst freshly prepared, polished, or fractured, suggests a lustrous appearance, and conducts energy and warmth exceptionally well. It become explicitly said withinside the query that the each samples are precisely portions of the equal metallic. If this is so, portions of the equal metallic should have the equal density, comprise the equal amount of depend, have the equal boiling factor and feature the equal quantity of depend in keeping with unit volume.

Thus, the correct option is B.

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Complete question:

Two pieces of the same metal or placed on the table with the piece of metal have the same density mass and texture which characteristic must be the only difference between the two samples

A-they contain a different amount of matter per unit volume

B-they have different dimensions

C-they are made up of a different type of matter

D-they have different boiling points

In the periodic table, hydrogen is placed in group 1a, while helium is placed in group 8a. The best explanation for this is that hydrogen choose. And helium choose. .

Answers

Answer:

Hydrogen and helium are placed in different groups in the periodic table because they have different atomic numbers and different chemical properties......................................

Explanation:

In the periodic table, the elements are arranged according to their atomic number, which is the number of protons in the nucleus of an atom. The elements are also organized into groups, or families, based on their chemical properties.

Hydrogen and helium are placed in different groups in the periodic table because they have different atomic numbers and different chemical properties. Hydrogen is placed in group 1a, also known as the alkali metals, because it has a single valence electron, which is an electron that is involved in chemical bonding. Helium, on the other hand, is placed in group 8a, also known as the noble gases, because it has a full valence shell, which means that it does not readily form chemical bonds.

It is important to note that the arrangement of elements in the periodic table is not based on the choices or preferences of the elements themselves, but rather on their intrinsic properties, such as their atomic number and chemical behavior.

what did the photoelectric experiment demonstrate?

Answers

The photoelectrons' kinetic energy increased with an increase in light frequency, and the current increased with a rise in light amplitude.

What is demonstrated by the photoelectric effect?

The current increased with a rise in light amplitude, and the kinetic energy of the photoelectrons increased with a rise in light frequency.

What does the photoelectric effect prove?

Light can be categorised as a wave because it demonstrates all three of the essential features of a wave—interference, diffraction, and polarisation.

The photoelectric effect, however, only makes sense if we consider light to be made up of tiny energy packets (particles) known as photons; in other words, the photoelectric effect proves that light is a particle.

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What is the first step of enzyme action?

Answers

A substrate enters the energetic site of the enzyme. This bureaucracy the enzyme-substrate complicated.

The response then occurs, changing the substrate into merchandise and forming an enzyme merchandise complicated. The merchandise then go away the energetic site of the enzyme. The first step of an enzyme catalyzed response is catalytic turnover the binding of substrate via way of means of the enzyme the discharge of product dissociation of the ES complicated ES -> E + P. An enzyme-catalyzed response may be more or less divided into 3 stages: enzyme-substrate binding, "catalysis" and product release.

Thus, the first step of enzyme action is the binding of enzyme and substrate.

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Which equation represents the most accurate model of cellular respiration? note: c6h12o6 is the sugar, glucose.

Answers

The most accurate equation representing the model of cellular respiration is: D. C6H12O6 (sugar) + 6O2 (oxygen) --> 6CO2 (carbon dioxide) + 6H2O (water) + energy.

How does cellular respiration happen?

Cellular respiration is a metabolic process that breaks down glucose and oxygen to provide energy for plants. This energy is in the form of ATP energy essential to support many other reactions in the plant’s body. To produce this energy, plants react to glucose (C6H12O6) and oxygen to form ATP. The process also produces carbon dioxide and water as the side product. This reaction is also known as glycolysis, which most accurately represents as:

C6H12O6 (sugar) + 6O2 (oxygen) --> 6CO2 (carbon dioxide) + 6H2O (water) + energy.

This question seems incomplete. The complete query is as follows:

"Which equation represents the most accurate model of cellular respiration?

6CO2 (carbon dioxide) + 6H2O (water) + sunlight --> 6O2 (oxygen) + C6H12O6 (sugar)CO2 (carbon dioxide) + H2O (water) + energy --> O2 (oxygen) + C6H12O6 (sugar) + CO2 (carbon dioxide)C6H12O6 (sugar) --> 6CO2 (carbon dioxide) + 6H2O (water) + 6O2 (oxygen) + energyC6H12O6 (sugar) + 6O2 (oxygen) --> 6CO2 (carbon dioxide) + 6H2O (water) + energy"

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Can pewter cause lead poisoning?

Answers

Due to the deadly nature of lead, daily or regular use caused the chemical to leak out of the plate, spoon, or tankard and swiftly enter the body.

Since when is lead no longer added to pewter?

Older pewters with a higher lead concentration are heavier, tarnish more quickly, and turn a darker shade of silver-grey with time. In 1974, BS5140, which was strengthened in 1994 by the European directive BSEN611, eliminated lead from the composition.

Lead toxicity from pewter?

There was lead in a lot of ceramic glazes. Use any contemporary pewter you may have without worrying. Modern pewter is completely lead free and is typically designated as such. It is generally used for decorative items. Riskier is antique pewter.

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How many Mg2+ ions are in 1.00 mole of MgO?

Answers

The number of atoms found in a mole of compound has been given by relationship between the mole and the Avogadro number. The Avogadro number has been the constant that has been given by the number 6.023 × 10^23.

The relationship between the atoms and mole has been given by:

1 mole = 6.023 × 10^23 mg2+ ions.

So, the number of mg2+ ions  that has been present in1 mole of the MgO has been equivalent to the Avogadro number.

Thus, 1 mole of MgO has 6.023 ×  10^23 mg2+ ions.

Avogadro number

The Avogadro number is the approximate number of nucleons (protons and neutrons) in one gram of ordinary matter.

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lewis structure for caffeine

Answers

Answer:

Explanation:

Lewis structure is a type of structural formula that describes the bonding between atoms in a molecule. It shows how many electrons are shared between two or more atoms and which orbitals are being used for the bond. Lewis structures can be used to predict several properties of molecules, including their boiling point, melting point, reactivity and solubility. Caffeine is an organic compound with molecular formula C8H10N4O2 that contains four nitrogen-containing rings connected by three single bonds and one double bond. Its Lewis structure can be drawn using valence shell electron pair repulsion (VSEPR) theory to determine the geometry around each atom in the molecule and then drawing out each atom's individual electron pairs according to its VSEPR geometry.

What is the 2 4 hour rule?

Answers

You can safely keep freshly potentially dangerous foods, such as cooked meat and foods that contain meat, milk products, prepared vegetables and fruits cooked pasta and rice and cooked as well as processed foods containing eggs, at temperature changes in the danger zone, or between 5° C and 60° C, for up to 2 hours or 4 hours. This information is provided by the 2 Hour/ 4 Hour Rule.

Why should food businesses consider the 2-hour / 4-hour rule for food hygiene?

Strong food safety precautions have been implemented as a result of reduction strategies that have been used to reduce the frequency of salmonella-related foodborne illnesses. These tactics are centered on the Food Standards Code, which also incorporates the alternative temperature control technique known as the "2-hour / 4-hour rule."

What are the 4 parts of the food standards Code?

Flavor enhancers, food safety, labeling, and foods that require prior approval, such as genetically modified foods, are all covered by the Food Standards Code.

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Boron consists of two naturally occurring isotopes, 10B which has a mass of 10.012 a.m.u and 11B which has a mass of 11.009 a.m.u. The atomic weight of boron is 10.81 a.m.u. Calculate the percentage composition of each isotope.​

Answers

The percentage composition of each isotope, given their various masses is:

Percentage of 10B is 20%Percentage of 11B is 80%

How do I determine the percentage composition of each isotope?

The percentage composition of each isotope can be obtained as follow:

Mass of 1st isotope (10B) = 10.012 amuMass of 2nd isotope (11B) = 11.009 amuAverage atomic mass of boron = 10.81 amuPercentage of 1st = A =?Percentage of 2nd (2nd%) = 100 - A =?

Average atomic mass = [(Mass of 1st × 1st%) / 100] + [(Mass of 2nd × 2nd%) / 100]

10.81 = [(10.012 × A) / 100] + [(11.009 × (100 - A) / 100]

10.81 = 0.10012A + 11.009 - 0.11009A

Collect like terms

10.81 - 11.009 = 0.10012A - 0.11009A

-0.199 = -0.00997A

Divide both sides by -0.00997

A = -0.199 / -0.00997

A = 20%

Thus,

B = 100 - A

B = 100 - 20

B = 80%

From the above calculations, we can conclude that the percentage composition of each isotope is:

Percentage of 10B = 20%Percentage of 11B = 80%

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How do you calculate RMS?

Answers

RMS or Root Mean Square value can be calculated by taking the square root of arithmetic mean of squared observations.

It's formula for n values is given by

Xrms = √(x1²+x2²+..... Xn²) /N

What is RMS?

RMS is root mean Square can be defined as square root of the mean square. It is the arithmetic mean of the squares of group of values. It can also be called as a quadratic mean and even called as varying function.

So basically by three main steps we can calculate Root mean square

1) To get squares of all the values

2) By calculating average of obtained squares

3) Taking the square root of the average

Thus, RMS or Root Mean Square value can be calculated by taking the square root of arithmetic mean of squared observations.

It's formula for n values is given by

Xrms = √(x1²+x2²+..... Xn²) /N

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What is the best factor to consider in using the chemical sanitizer?

Answers

The ideal water temperature range for chemical sanitizers is typically between 55°F (13°C) and 120°F. There must be contact time for the sanitizer to remove hazardous bacteria properly.

Why is it crucial to take into account particular elements while evaluating the efficacy of chemical sanitizers?

Overly high concentrations can be dangerous, flavor- and odor-degrading, corrosive to metals and other materials, and residue-producing. A chlorine bleach sanitising solution begins to lose some of its potency over time.

Which of the following influences how well a chemical sanitizer performs in hot water?

It is important to consider the solution's temperature. While not being too hot to expedite sanitizer evaporation, water must be heated enough to increase solution activity.

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a student predicts that the density of salt water is higher than the density of drinking water. the student hasa beaker filled with salt water, a beaker filled with drinking water, and a cube that is hung from a springscale. the cube will sink in both liquids. what measurements are needed to verify the student's prediction?

Answers

The measurements needed to verify the student's predictions are:

1. Measurement of the mass of the cube.2. Measurement of the volume of the cube.3. Measurement of the mass of the beaker of salt water.4. Measurement of the volume of the beaker of salt water.5. Measurement of the mass of the beaker of drinking water.6. Measurement of the volume of the beaker of drinking water.7. Measurement of the weight of the cube in the beaker of salt water.8. Measurement of the weight of the cube in the beaker of drinking water.9. Comparison of the density of the salt water to the density of the drinking water.

Verifying Predictions of Salt Water Density: An Experiment

The goal of this experiment is to verify a student's prediction that the density of salt water is higher than the density of drinking water. To do this, we will use a beaker filled with salt water, a beaker filled with drinking water, and a cube that is hung from a spring scale. The cube will then be placed in both liquids and the appropriate measurements will be taken in order to make an accurate comparison.

First, the mass and volume of the cube must be measured. This can be done by placing the cube on a scale and recording its mass. The volume can be calculated by measuring the length, width, and height of the cube and multiplying them together.

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What are the products of the following reactions? (A trace amount of acid is present in each case.)



A. cyclopentanone + ethylamine

B. cyclopentanone + diethylamine

C. acetophenone + hexylamine

D. acetophenone + cyclohexylamine

Answers

Carbonyl compounds are organic compounds that contain a carbonyl group (C=O). These include the ketones and aldehydes. Ketones are those that have two alkyl groups attached to the carbonyl carbon while aldehydes are those that contain an alkyl group and a hydrogen atom. These compounds can undergo addition reactions with primary and secondary amines which results in the formation of imines and enamines.

The products of the given reactions are shown in the completed equations given attachment.

Reactions A, C and D results in the formation of an imine since ethylamine, hexylamine and cyclohexylamine are all primary amines. Reaction B, on the other hand, produces an enamine since diethylamine is a secondary amine.

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Draw a Lewis structure for each species.

(a) N2H4

(b) N2H2

(c) (CH3)2NH2Cl

(d) CH3CN

(e) CH3CHO

(f) CH3S(O)CH3

(g) H2SO4

(h) CH3NCO

(i) CH3OSO2OCH3

(j) CH3C(NH)CH3

(k) (CH3)3CNO

Answers

Here are the Lewis structures for each species:

[tex]N_2H_4[/tex]

The Lewis structure for [tex]N_2H_4[/tex] is:

H H

\ /

N--N

|

H

H

[tex]N_2H_2[/tex]

The Lewis structure for [tex]N_2H_2[/tex] is:

H H

\ /

N

|

N

|

H

[tex](CH_3)_2NH_2Cl[/tex]

The Lewis structure for [tex](CH_3)_2NH_2Cl[/tex] is:

Cl

NH

|

C--C--C

|

NH

|

C--C

[tex]CH_3CN[/tex]

The Lewis structure for[tex]CH_3CN[/tex] is:

H

|

C--N

|

H C

| |

H H

[tex]CH_3CHO[/tex]

The Lewis structure for  [tex]CH_3CHO[/tex] is:

H

|

C--C

|

H O

| |

H H

[tex]CH_3S(O)CH_3[/tex]

The Lewis structure for [tex]CH_3S(O)CH_3[/tex] is:

H H

\ /

C--S

|

H C--O

|

H C--H

|

H

[tex]H_2SO_4[/tex]

The Lewis structure for [tex]H_2SO_4[/tex] is:

H O H

\ / \ /

S O

|

O--H

[tex]CH_3NCO[/tex]

The Lewis structure for [tex]CH_3NCO[/tex] is:

H

|

C--N

|

H C

| |

O H

[tex]CH_3OSO_2OCH_3[/tex]

The Lewis structure for [tex]CH_3OSO_2OCH_3[/tex] is:

H H

\ /

C--O--S--O--O--C

| |

H H H

[tex]CH_3C(NH)CH_3[/tex]

The Lewis structure for [tex]CH_3C(NH)CH_3[/tex] is:

H H

\ /

C--C

|

N C--H

\ /

H H

[tex](CH_3)_3CNO[/tex]

The Lewis structure for [tex](CH_3)_3CNO[/tex] is:

H H H

\ / /

C--C--C--N

|

O

|

H

A Lewis structure is a way of representing the electron configuration of a molecule or ion using dots and lines. The dots represent the valence electrons, and the lines represent the bonds between atoms. Lewis structures can be used to predict the geometry of a molecule or ion and to understand the chemical properties of a compound.

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Which sets of structures are homologous?

Answers

Homologous structures are those that don't exactly appear alike or serve the same purpose but are structurally similar, indicating that they have a common ancestor. Examples of such structures are a bird's wing and a whale's flipper.

What homologous structures are there?

The arms of primates and bats are two common examples of homologous structures in evolutionary biology. Genetically, these two structures are related even though they do not share the same function or appearance as their most recent common ancestor.

What are three homologous structural examples?

Examples of homologous structures include the human arm, a bird or bat's wing, a dog's leg, a dolphin or whale's flipper, and a bird or a bat's wing. They are distinctive and possess despite having differing goals, they are comparable and possess similar qualities.

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When dichlorocarbene is generated in the presence of an atkene. a dichlorocyclopropane is formed. Write the complete stepwise mechanism for the formation of dichlorocarbene, CCl2. Show all intermediate structures and show all electron

Answers

When a dichlorocarbene is added to an alkene, it exhibits double bond stereoselectivity.

Dichlorocarbene chemistry refers to the formation of an uneven mixture of stereoisomers by a single reagent during the non-stereospecific synthesis of a new stereocenter or the non-dichlorocarbene transformation of an already-existing one. The selectivity is caused by various steric and electrical effects in the mechanistic pathways leading to the various products. dichlorocarbene can never be completely eliminated because the activation energy difference between the two pathways is finite. Both goods are theoretical and only differ in size. Under ideal conditions the analytical techniques may be unable to identify the minor dichlorocarbene.

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What are 3 ways you can determine if a compound is ionic or covalent?

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We can determine whether a compound is ionic or covalent by comparing their bonds. If a compound will contain ionic bonds then they are ionic in nature whereas if it contains covalent bond they are covalent in nature.

The compounds formed of ionic bonds are made up of metals so they are metallic in nature as  ionic compounds contain a metal bonded to a nonmetal.

They  form crystals and typically have high melting and boiling point and  are hard and brittle, and form electrolytes in water.

Whereas in case of covalent compounds they  are made up of nonmetals bonded to one another. Covalent compounds have lower melting and boiling points as compared to ionic compounds  they are softer in comparison  and are electrical insulators.

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How would the system change if the container were placed on a hot plate? some kinetic energy would be produced. Some kinetic energy would be destroyed. The kinetic energy of the molecules would increase. The kinetic energy of the molecules would decrease.

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If a container is placed on a hot plate, the kinetic energy of molecules inside the container will increase.

It is a fundamental theory of thermodynamics that energy cannot be produced and neither be destroyed. So obviously from the fundamental theorem of thermodynamics, the first two options in the given question ( some kinetic energy would be produced and some kinetic energy would be destroyed ) are obviously wrong.

Since the container is placed on a hot plate, the heat energy will get transferred from the plate to the container, and hence the molecules inside the container will get heated and excited. Therefore the kinetic energy of molecules inside the container will increase.

So basically, in this case, the heat energy of the plate is converted to the kinetic energy of molecules inside the container.

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