both include steps involving reactions that result in the release of carbon dioxide. both include steps involving the hydrolysis of organic molecules. both sets of reactions occur within the mitochondria. both include steps involving the oxidation of organic molecules.

*Acrylonitrile and ethyl will be collected together and thus they cant be separated using distillation.

All answers seem correct to me :)

Taking into account the reaction stoichiometry, 2.4041 grams of K₂O can be produced from 2 grams of K and 5 grams of O₂.

In first place, the balanced reaction is:

4 K + O₂ → 2 K₂O

By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound participate in the reaction:

The molar mass of the compounds is:

Then, by reaction stoichiometry, the following mass quantities of each compound participate in the reaction:

The limiting reagent is one that is consumed first in its entirety, determining the amount of product in the reaction. When the limiting reagent is finished, the chemical reaction will stop.

To determine the limiting reagent, it is possible to use a simple rule of three as follows: if by stoichiometry 32 grams of O₂ reacts with 156.4 grams of K, 5 grams of O₂ reacts with how much mass of K?

mass of K= (156.4 grams of K× 5 grams of O₂)÷ 32 grams of O₂

mass of K= 24.4375 grams

But 24.4375 grams of K are not available, 2 grams are available. Since you have less mass than you need to react with 5 grams of O₂, K will be the limiting reagent.

Considering the limiting reagent, the following rule of three can be applied: if by reaction stoichiometry 156.4 grams of K form 188 grams of K₂O, 2 grams of K form how much mass of K₂O?

mass of K₂O= (2 grams of K× 188 grams of K₂O)÷ 156.4 grams of K

mass of K₂O= 2.4041 grams

Then, 2.4041 grams of K₂O can be produced from 2 grams of K and 5 grams of O₂.

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Answer:

(Question) What does the Law of Conservation of Mass state?

(Answer) The total mass of all of the reactants prior to a chemical reaction must equal the total mass of all the products after the reaction.

(Question) If the mass of elements before a chemical reaction is 30 grams, after the chemical reaction, the mass will be __.

(Answer) 30 grams

(Question) 78 g of potassium (K) react with 71 g of chlorine (Cl) to produce potassium chloride. According to the Law of Conservation of Mass, what is the mass of the product (2KCl)?

(Answer) 149 g

(Question) 2 grams of potassium (K) reacts with 5 grams of Oxygen (O). According to the Law of Conservation of Mass, how many grams of potassium oxide (K2O) will be produced?

(Answer) 7

(Question) Which of the following equations demonstrates the Law of Conservation of Mass?

(Answer) CH4+O2→C+2H2O

Explanation:

just finished the quick check. hope this helps UwU

In a 250 mL volumetric flask, an analytical chemist measures 0.281g of an unidentified diprotic acid and dilutes it to the proper concentration with distilled water. He follows that by titrating this solution with 0.0700M NaOH. The chemist discovers he has added 48.3 mL of NaOH solution when the titration reaches the equivalency point.

What is molar mass?

The total mass of one mole of a substance is referred to as the molar mass of a molecule. Grams per mole (g/mol) is a common unit of measurement. But kg/mol is the SI unit for this amount.

Write the neutralising reaction in step one.

Na2A + 2 H2O = H2A + 2 NaOH

Step 2: Determine the NaOH reacting moles.

0.0700 M NaOH in 48.3 mL reacts.

3.38 x 103 mol = 0.0483 L x 0.0700 mol/L

Step 3: Determine the H2A responding moles.

H2A and NaOH have a molar ratio of 1:2. The H2A reactive moles are equal to 1.69 x 3.38 x 10-3 mol.

Calculate the molar mass of H2A in step four.

The mass of 1.69 x 103 moles of H2A is 0.281 g. H2A has a molar mass of:

M is equal to 0.28 g / 1.69 103 mol, or 166 g/mol.

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Answer:

arsenic

Explanation:

Name                         -Arsenic

Symbol                         -As

Atomic Number         -33

Atomic Mass                 -74.9216 atomic mass units

Number of Protons -33

Number of Neutrons -42

Number of Electrons -33

Trust

In the decomposition of water, twice as much hydrogen as oxygen is formed because there are two atoms of hydrogen and one atom of oxygen in a water molecule.

The chemical formula for water is H₂O, which is made up of two hydrogen atoms and one oxygen atom.

To create the elements that make up water, a reaction of breakdown is used. The breakdown looks like this:

2H₂O → 2H₂ + O₂

Two molecules of water generate two molecules of hydrogen and one molecule of oxygen, according to the equation above. As a result, there is a 2:1 ratio of hydrogen to oxygen generated.

This is explained by the fact that a water molecule contains one oxygen atom and two hydrogen atoms.

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The cell divides, the chromosomes separate into two groups, and DNA replicates are the assertions that take place during mitosis. The correct options are A, B, C, and D.

In the cell division process known as mitosis, a single cell is split into two identical cells. This occurs when a cell known as the mother cell divides into a cell known as the daughter cell.

Thus, the correct options are:

A. Cell function slows down

B. The cell divides.

C. Chromosomes divide into two groups.

D. DNA replicates.

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Answer:

the correct answer is A B C

Explanation:

have a nice day.

Electrons transferred from Glyceraldehyde 3 phosphate to NAD in glycolysis per glucose are 4.

The electron is a subatomic particle (denoted by symbol e−or β−) whose electric charge is negative one elementary charge. Electrons belong to first generation of the lepton particle family, and are generally thought to be elementary particles because they have no known components or substructure. The electron's mass is approximately 1836 times smaller than that of proton.

Quantum mechanical properties of electron include an intrinsic angular momentum (spin) of a half-integer value, expressed in units of the reduced Planck constant, ħ. Being fermions, no two electrons can occupy same quantum state, in accordance with the Pauli exclusion principle. Like all elementary particles, electrons exhibit properties of both the particles and waves: They can collide with the other particles and can be diffracted like light. The wave properties of electrons are easier to observe with the experiments than those of other particles like neutrons and protons because electrons have a lower mass and hence a longer de Broglie wavelength for given energy.

Electrons play an essential role in numerous physical phenomena, such as electricity, magnetism, chemistry and thermal conductivity, and they also participate in the gravitational, electromagnetic and weak interactions. Since an electron has charge, it has a surrounding the electric field, and if that electron is moving relative to an observer, said observer will observe it to generate a magnetic field. Electromagnetic fields produced from other sources will affect the motion of an electron according to Lorentz force law.

Electrons radiate or absorb energy in form of photons when they are accelerated. Laboratory instruments are capable of trapping individual electrons as well as electron plasma by use of electromagnetic fields. Special telescopes can detect the electron plasma in outer space. Electrons are involved in many applications such as the tribology or frictional charging, electrolysis, electrochemistry, battery technologies, electronics, welding, cathode-ray tubes, photoelectricity, photovoltaic solar panels, electron microscopes, radiation therapy, lasers, gaseous ionization detectors and particle accelerators.

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Due to its complete reduction, the triacylglycerol containing the stearic acid residues produces more energy.

What is oxidation?

Oxidation refers to the loss of electrons experienced by a reactant during a process. Reduction is the process by which a reactant picks up electrons while undergoing a reaction. This occurs frequently when metals and acids interact. Oxidation refers to the loss of electrons experienced by a reactant during a process.

An atom, molecule, or ion oxidizes when a chemical reaction results in the loss of one or more electrons. The oxidation state of the chemical species increases during oxidation.

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Impedance spectroscopy and electrochemical properties of nano-crystalline Vanadium pentoxide (V₂O₅) is synthesized by co-precipitation method is an investigative experiment to analyse impedance, microstructure, electrical conductivity, and dielectric analysis.

Vanadium pentoxide is investigated widely because it is a multi functional material used for the application of different devices.

Impedance spectroscopy is a sensitive technique for characterization. This technique establishes the electrical responses of chemical systems.

In this experiment, nano-crystalline powder vanadium pentoxide (V₂O₅)  was prepared by the chemical root co-precipitation method.

The increase in the dielectric constant of V₂O₅ was noted and the electrical conductivity was varying due to the variation in temperature.

The impedance was measured at the varying temperatures and varying frequency.

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To make the spot more rounder, add a trace of acetic or formic acid to the eluting solvent mixture.

Thin layer chromatography (TLC) is a chromatographic method that uses a thin stationary phase supported by an inert backing to separate the components of a mixture. It can be carried out on an analytical scale to track the development of a reaction or on a preparative scale to purify minute quantities of a chemical.

Like all chromatography, TLC works on the principle that a chemical will have varying affinities for the mobile and stationary phases, influencing how quickly it migrates. TLC aims to produce well-defined, well-separated spots.

Streaks rather than spots are frequently produced in neutral solvents by acids, bases, and highly polar substances. Streaks can obscure other areas and make it challenging to compute a [tex]R_{f}[/tex].

Acid streaking can be corrected by adding a few percent of acetic or formic acid to the solvent. Similarly for bases, adding a little amount of triethylamine can enhance results. Adding a little amount of methanol can enhance polar substances' results.

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Adenine (A) particularly interacts with thymine (T) in DNA and uracil (U) in RNA, whereas guanine (G) and cytosine (C) experience a specific hydrogen bonding with each other. Quantitatively, three hydrogen bonds hold each GC base pair together, but only two hydrogen bonds hold each AT and AU base pair together.

Only two hydrogen bonds exist in A-T/U-. Three hydrogen bonds exist in G-C-.Between bases, hydrogen atoms bind. Between guanine and cytosine, there are 3 HB. Between adenine and guanine, there are two hydrogen bonds. Therefore, DNA is more stable if its GC concentration is larger.

An alternate hydrogen bonding mechanism is made possible by the 180° rotation of the adenine in the A and T base pair with respect to the glycosidic bond. Guanine is also rotated 180 degrees around the glycosidic link in the G and C pair. Furthermore, Hoogsteen base pairs have a greater glycosidic bond angle.

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The wavelength of light emitted when an electron in the hydrogen atom makes a transition is 410 nm.

ni = 6; the initial energy level

nf = 2; the final energy level

An electron in the hydrogen atom jump from higher (ni=6) to lower energy (nf=2) level by emitting light of specific wavelenght.

1/λ = R(1/nf² - 1/ni²); the Rydberg formula for the wavelenght

R is Rydberg constant

1/λ = 10 973 731.6 m⁻¹ × (1/2² -1/6²)

1/λ = 10 973 731.6 m⁻¹ × 0.222

1/λ = 2438607.022 m⁻¹

λ = 1 / 2438607.022 m⁻¹

λ = 410×10⁻⁹ m

λ = 410 nm;  the wavelength of light emitted

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The atoms potassium(K) and chlorine(Cl) are most likely to form ions and thus an ionic bond with each other.

What are ionic bonds?

An ionic bond is a particular kind of chemical bond that is created by the electrostatic attraction of two ions with opposing charges. These ions are produced when two atoms, typically a metal and a non-metal, exchange their valence electrons.

The elemental couples that have the highest likelihood of forming an ionic connection are Cl and K.

Since,

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A scientific hypothesis is a theory that offers a speculative explanation for a phenomenon or a specific group of related events that have been observed in the natural world.

A hypothesis is a speculative response to an issue in science. A testable hypothesis is one that can be confirmed or refuted through experimentation, data gathering, or experience. The scientific method can only be used to design and carry out experiments based on testable hypotheses. A hypothesis is a provisional assertion that suggests one or more potential explanations for a phenomena or event. An effective hypothesis is a verifiable claim that might also contain a prediction. A theory is not the same as a hypothesis. Theories are broad explanations built on a lot of evidence.

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The half-life of cobalt-60 is 5.3 yr. amount of a 1mg sample of cobalt -60 is left after 15.9 yr period is:

Cobalt-60 has three half-lives over a period of 15.9 years. Cobalt-60 is left behind in amounts of 0.500 mg after one half-life, 0.250 mg after two half-lives, and 0.125 mg after three half-lives.

What is half life of a reaction?

The amount of time it takes for the concentration of a given reactant to reach 50% of its initial concentration is known as the half-life of a chemical reaction.

The time required for a reactant concentration to drop to half that of its original concentration is known as the half-life of a reaction, or t 1/2. Its usage in chemistry and medicine is to forecast changes in a substance's concentration over time.

Cobalt-60 has three half-lives over a period of 15.9 years. Cobalt-60 is left behind in amounts of 0.500 mg after one half-life, 0.250 mg after two half-lives, and 0.125 mg after three half-lives.

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In December, the northern hemisphere's winter, the north pole faces away from the sun. Due to Earth's "continuous" axis tilt, the planet's surface is lit by sunlight for variable lengths of time over its yearly orbit.This is further explained below.

Generally, The half of the Earth that is above the line that divides the equator into two halves is called the Northern Hemisphere.

Because of the axial tilt of the Earth, which is 23.5 degrees, solstices and fluctuating solar declinations occur as a result of the Earth's orbit around the sun.

This means that during the course of a year, either the Northern or Southern Hemisphere will be slanted toward the sun. Whichever hemisphere is tilted toward the sun will receive the sun's rays with the greatest intensity.

In conclusion, As a result of the fact that the axis of the Earth is tilted at a "constant" angle, the surface of the planet gets lit by sunlight for different periods of time over the course of its annual round around the Sun.

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The level of sodium and potassium are constant but there is a transmembrane potential charge because Na and K levels are not equal within and outside the cell.

The membrane potential is a difference in the electrical charge of ions such as sodium and potassium across the plasma membrane, which is used by the cell to carry out different functions.

In conclusion, the level of sodium and potassium are constant but there is a transmembrane potential charge because Na and K levels are not equal within and outside the cell.

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Yes this statement is true

Nitrogen atom with an atomic number of 7 which means each nitrogen atom has 7 protons in an uncharged nitrogen atom number of electrons are four pair of electron are present and if only atomic number of nitrogen are given then we easily predict the number of electrons in an uncharged nitrogen atom nitrogen atom and atomic mass of nitrogen is 14 and symbol of nitrogen is N that's why this given statement is true

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According to the VSEPR theory, the shape of the so3 molecule is trigonal planar.

The geometry of individual molecules can be predicted using the chemical model known as the valence shell electron pair repulsion hypothesis based on the number of electron pairs that surround the core atoms of the molecules. In honor of its two primary creators, Ronald Gillespie and Ronald NY Holm, it is sometimes known as the Gillespie-NY Holm theory.

Valence shell electron pair repulsion is the name given to the underlying concept in molecular structures (VSEPR). In essence, it states that because electron pairs are made up of negatively charged particles, they are attracted to one another and try to keep as far apart as possible.

Electrons on the center atom of a molecule always maintain their greatest possible separation from one another because they are negatively charged and repel one another.

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6.31 x 10⁻⁹ mole/dm³ hydronium ion present in milk.

The hydronium ion is H₃O⁺ and its concentration is equivalent to the H⁺ ion concentration. The H⁺ ion concentration is given by:

pH = -log [H⁺]

[H⁺] = 10^(-8.2)

[H⁺] = 6.31 x 10⁻⁹ mole/dm³

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Reaction of Iron(III) oxide (Fe2O3) with carbon monoxide (CO) to form iron (Fe) and carbon dioxide (CO2), is a redox reaction as both oxidation of carbon monoxide and reduction of iron is taking place.

What is  Oxidation?

Redox reactions include a change in the oxidation state of the substrate. Loss of electrons or a rise in an element's oxidation state are both considered to be oxidation. Gaining electrons or lowering the oxidation state of an element or its constituent atoms are both examples of reduction.

Therefore,

What species is reduced in the reaction of iron(iii) oxide with carbon monoxide to produce iron metal and carbon dioxide?

Reaction of Iron(III) oxide (Fe2O3) with carbon monoxide (CO) to form iron (Fe) and carbon dioxide (CO2), is a redox reaction as both oxidation of carbon monoxide and reduction of iron is taking place.

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The molarity of 200 grams of glucose (c6h12o6) in 1.0 liters of solution is 1.11M solution

Molarity is number of moles of solute per one liter of solution. Symbol for molarity is capital M.

In chemistry, solution is a mixture of two or more substances in which neither substance changes chemically. For example, salt water is solution that contains water (the solvent) and salt (the solute). Concentration is amount of dissolved substance in a solution. In other words, it is the amount of the  stuff that has been mixed into your liquid, concentration is usually measured in molarity.

A mole is basic unit in chemistry. It is the amount of substance in grams that contains as many atoms, molecules, or ions as 12 grams of carbon-12  (6.022 x 1023) does. Molarity is number of moles of a solute per liter of solution. If we wanted to know the molarity of our salt water solution, we would want to know how many moles of salt are in every 1 liter of  water.

So to calculate,

molarity=moles of solute/ liters of solution

molarity= 200g c6h12o6 ( 1mol/180g)= 1.11mol c6h12o6

1.11 mol/1.0liters= 1.11M solution

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The Temperature of N2 is 1078K

Calculations Using the Ideal Gas Law

P=nRTV. Calculate volume:

V=nRTP. Calculate moles:

n=PVRT. Calculate temperature:

T=PVnR.

We use the temperature formula,

now,

T=PVnR

where p = pressure

V= volume

nR = no of moles

Given that

p = 3.95 atm

V= 77.3 I

nr = 3.45 moles

T=PVnR

T= 3.95*77.3*3.45

T= 1078K

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[tex]AgNo_{3} (aq)+LiCl(aq)--- > AgCl(s)+LiNO_{3}(aq)[/tex]

Adenosine triphosphate (TP-ATP) ATP is the substance needed for cells to function. b. It is a molecule of energy. It supplies energy for all biological (cellular) processes. Without ATP, tissues, organs, and eventually, the entire organism perish. c. To create ATP, glucose is broken down by several complex chemical reactions (usually). Larger Organic Compounds Being Produced 1. Reactions in Synthesis or Dehydration (dehydration synthesis) When synthesizing substantial organic compounds (discussed later). A dehydration reaction takes place and is known as such.

Net Ionic chemicals do not all dissolve in water.

What mix of ions will dissolve is determined by a list of solubility rules.

In a precipitation reaction, soluble reactants are transformed into one or more insoluble product(s). The precipitate is the term for the material. Example: When LiCl and AgNO3, both of which are soluble, are combined, the result is AgCl, which is insoluble.

[tex]AgNO_{3} (aq) + LiCl(aq) -- > AgCl(s) + LiNO_{3} (aq)[/tex]

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The standard heat of formation for carbonic acid, H₂CO₃, the right chemical equation is H₂CO₃ → H₂O + CO₂ (and also H+ and CO₃— but this is irrelevant here).

An important example of a reversible reaction in the human body.

This reaction occurs when CO₂ (CO₂) and water (H₂O) combine to form carbonic acid (H₂CO₃).

The newly formed acid is unstable, and it dissociates to yield both proton (H+) and bicarbonate ion (HCO₃-). The equation for the entire carbonic acid reaction is: H₂CO₃ → H₂O + CO₂

Carbonic acid (H₂CO₃) forms in small amounts when CO₂ dissolves in H₂O, yet decomposes rapidly under ambient conditions of temperature and pressure. Despite its fleeting existence, H₂CO₃ plays a crucial role in the global carbon cycle and in biological carbonate-containing systems. The short lifetime in water and presumed low concentration under all  terrestrial conditions has stifled study of this fundamental species.

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The frequency of a photon is 8.333 x 10^14 s^-1 .

The frequency of a photon is defined as the number of waves that pass through a fixed point in a unit of time.

Formula :

f = c/ λ ---------- (1)

Where f is the frequency, c is the speed of light, and λ is the wavelength of the photon

According to question,

Given,

The wavelength of photon = 360 nm or 3.60 × 10^-7

3 x 10^8 m/s is the speed of light.

We have to find the frequency of a given photon.

Using eq. (1),

f = 3 × 10^8/ 3.60 × 10^-7

f = 0.8333 × 10^15 s^-1

Or we can also write that,

f= 8.333 x 10^14 s^-1

Hence, the frequency of the photon is 8.333 × 10^14 s^-1.

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A chemical reaction gives off  2,100 kJ of heat energy which is 5.0×10^5 calories.

What is  heat energy?

The movement of minuscule atoms, molecules, or ions in solids, liquids, and gases produces heat energy. From one thing to another, heat energy can be exchanged. Heat is the flow or transfer that occurs as a result of the temperature differential between two objects.

1KJ = 1000J

2100KJ = 2100×1000

=2,100,000J

Let a be the no. of calories.

1 Calorie =4.18J

a calorie =2100000J

a= 2100000/4.18

a= 502392.3445

a = 5.0× 10^5 calories

Question:

A chemical reaction gives off 2,100 kJ of heat energy.

About how many calories is it equal to?

(1 calorie=4.18 Joules)

(a)5.0 × 10³ calories

(b)5.0×10^4 calories

(c)5.0×10^5 calories

(d)5.0×10^6 calories

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The best method for determining whether an element is present in that solution would be to look for precipitate-forming reactions.

What is precipitate forming reaction?

In a precipitation reaction, dissolved chemicals combine to create one or more solid products. These kinds of reactions, which are also known as double displacement, double replacement, or metathesis reactions, frequently take place in aqueous solutions and involve the exchange of ions between ionic compounds.

The presence of a specific element in a solution can be checked via precipitation reactions. The presence of lead in water sources could be checked by adding the chemical and watching for the appearance of a precipitate if, for instance, a chemical combines with lead to generate a precipitate.

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The Na+ /K+ pump transports three sodium ions out of the cell for every two potassium ions moved into the cell. This is an example of an antiport pump.

The function of Na+ /K+ pumps is to maintain the osmotic equilibrium and membrane potential inside the cells of living organisms. These pumps facilitate the movement of sodium and potassium ions against the concentration gradient.

In this question, three sodium ions out of the cell for every two potassium ions moved into the cell. This means the movement of ions is bidirectional. So, this is an example of an antiport pump.

Therefore, the Na+ /K+ pump is an example of an antiport pump that is classified in the category of active transport.

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Infrared spectroscopy is the analysis of infrared light interacting with a molecule. It is widely used to detect presence of functional groups and multiple bonds in organic and inorganic molecules.

There is a characterstic region of light in the absorption spectra of each compound which serves as its fingerprint. Most functional groups show absorption bands in the region (400-1400cm^-1), so it can be used to detect their presence in the molecule.

To determine whether or not the addition reaction of Bromine (Br2) with 1-pentene has gone to completion , this technique can be used as the C-H sp2 and C=C bonds spectral bands will disappear.

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