which of the following is true about this reaction mechanism?choose one:a. as a result of this reaction, only gdp is dephosphorylated.b. in the first step, inorganic phosphate is added to coa to generate succinyl-phosphate.c. the phosphoryl group is transferred from a nearby histidine residue to form phosphohistidine in this reaction.d. the thioester bond of succinyl-coa has high potential energy that necessitates two high-energy intermediates.

Materials that are best suited for incineration to reduce total volume, produce energy, and have minimal release of air pollutants include non-hazardous waste, such as paper, cardboard, and plastics.

These materials have high calorific values and can be easily combusted to produce energy, while their non-organic components, such as metals and glass, can be collected and recycled.

Additionally, organic wastes, such as food waste and yard waste, can also be effectively incinerated to produce energy, while reducing their volume and preventing them from emitting methane gas during anaerobic decomposition in landfills.

However, it is important to note that the incineration of certain materials, such as hazardous waste and medical waste, require specialized incineration processes to ensure the complete destruction of harmful substances and prevent the release of toxic air pollutants.

In general, proper waste segregation and identification of hazardous materials is crucial to ensure safe and effective incineration processes.

To know more about calorific values, refer here:

https://brainly.com/question/19580135#

#SPJ11

Bohr: Electrons move in circular paths that have different energies.

Thomson: Atoms contain electrons.

Dalton: Matter is made up of indivisible atoms.

Schrodinger and others: Electrons exist in a cloud of probability.

Rutherford: The mass of an atom is concentrated in its center.

Answer:

The screenshot shows all the answers

Explanation:

Answer:

The statement is not correct.

Explanation:

If two objects have the same mass, their respective densities determine their volumes. By definition, density = mass/volume or volume = mass/density. Therefore if two objects have the same mass, the mode dense object (with higher density) will occupy less volume than the other object.

Answer:

0.419 mol O₂

Explanation:

just took test

The given statement " William Aston created the mass spectrograph to analyze and separated them, found 218 and found mass and percent abundance of each atoms" is false.

The mass spectrograph was not invented by William Aston. It was actually invented by J.J. Thomson in the early 20th century.

J.J. Thomson's work with the mass spectrograph led to the discovery of isotopes, which are different forms of an element with the same number of protons but different numbers of neutrons. Isotopes have different masses, and the mass spectrograph allowed scientists to separate and analyze them based on their mass-to-charge ratio.

The process of using a mass spectrograph to determine the mass and percent abundance of isotopes is known as mass spectrometry. It involves ionizing a sample, separating the ions based on their mass-to-charge ratio, and detecting the ions to determine their abundance.

The completed question is given as,

State true or false

William Aston created the mass spectrograph to analyze and separated them, found 218 and found mass and percent abundance of each atoms.

Learn more about spectrograph from the link given below.

https://brainly.com/question/31242968

#SPJ4

Answer: they both eat fish

Explanation:

Answer:

New volume V2 = 120.4 ml

Explanation:

Given:

Pressure P1 = 1.12 atm

New pressure P2 = 1.12[1+0.25] = 1.4 atm

Old volume V1 = 150.5 ml

Find:

New volume V2

Computation:

P1V1 = P2V2

(1.12)(150.5) = (1.4)(V2)

V2 = 120.4 ml

New volume V2 = 120.4 ml

The given reaction is photosynthesis. The Six molecules of carbon dioxide are involved in this reaction.

Photosynthesis is the process of the formation of sugar from carbon dioxide and water.

1 molecule of sugar is produced in the reaction.

The Six molecules of carbon dioxide are involved in this reaction.

There are six molecules of carbon on the left-hand side of the equation.

There are six molecules of carbon on the right-hand side of the equation.

There are Twelve molecules of hydrogen on the left-hand side.

There are 12 molecules of hydrogen on the right-hand side.

There are Eighteen oxygen molecules on the left hand side.

There are eighteen oxygen molecules on the right hand side.

Therefore, The given reaction is photosynthesis. The Six molecules of carbon dioxide are involved in this reaction.

To learn more about photosynthesis, refer to the link:

https://brainly.com/question/1388366

#SPJ1

pCa when 35 mL of 0.009 M Cat2 is titrated with 0.022 M EDTA = 8.442. Balanced chemical equation when EDTA is added to the Ca²⁺ solution, the equation is shown below: Ca²⁺+ EDTA⁴⁻ → CaEDTA²⁻.  Hence, the correct option is d)10.6

Calculation of pСa  when 35 mL of 0.009 M Cat2 is titrated with 0.022 M EDTA (as for EDTA at pH=10 is 0.35) in a solution buffered to a constant pH= 10 when the volume of EDTA added is 48 mL is shown below: Given, Volume of Ca2+ = 35 ml

Concentration of Ca²⁺ = 0.009 M, Volume of EDTA added = 48 ml

Concentration of EDTA = 0.022 M,

pH = 10KCaY-2

= 5.0 x 10¹⁰

To calculate the pCa we have to follow these steps:

First, write down the balanced chemical equation for the reaction that occurs when EDTA is added to the Ca²⁺ solution, the equation is shown below: Ca²⁺+ EDTA⁴⁻ → CaEDTA²⁻

Kf = [CaEDTA²⁻] / ([Ca²⁺] [EDTA⁴⁻])

Initial concentration of Ca²⁺ = 0.009 M

Initial volume of Ca²⁺ = 35 ml, Initial amount of Ca²⁺ = 0.009 × 35

= 0.315 mmol

Final volume of Ca²⁺ = 35 + 48

= 83 ml

Thus, final concentration of Ca²⁺ = 0.315 / 83

= 0.003795 M

In the presence of excess EDTA, the entire amount of Ca²⁺ reacts with EDTA.

Thus,[EDTA⁴⁻] = 0.022 × 48 / 1000

= 0.001056 mol[Ca²⁺]

= 0.003795 mol,

Kf = 5 × 10¹⁰

We have to calculate the [CaEDTA²⁻] at the end point and then convert it into [Ca²⁺] to calculate pCa. Using the equation of equilibrium constant ;Kf = [CaEDTA²⁻] / ([Ca²⁺] [EDTA⁴⁻])

Here,[CaEDTA²⁻] = unknown[Ca²⁺]

= 0[EDTA]

= 0.001056 mol/L

When the end point is reached, all Ca²⁺ is reacted with EDTA to form CaEDTA²⁻.

Thus, moles of EDTA⁴⁻ used = 0.003795 × 83

= 0.315 mmol

Moles of CaEDTA²⁻ formed = 0.315 mmol

Thus, [CaEDTA²⁻] = moles of CaEDTA²⁻ formed / volume

= 0.315 / 83

= 0.003795 M

Now, substituting these values in the equilibrium constant expression;5 × 10¹⁰ = [0.003795] / [(0.001056) (0)]

Thus, [Ca²⁺] = [CaEDTA²⁻]

= 3.607 × 10⁻⁹ M

We know that pCa = -log [Ca²⁺]

Thus, pCa = -log 3.607 × 10⁻⁹

= 8.442 (approx)

Hence, the correct option is d)10.6

To know more about chemical equation, refer

https://brainly.com/question/11904811

#SPJ11

If the pressure is constant, the volume filled by a certain quantity of gas is exactly proportional to its absolute temperature. The initial volume of NH₃ gas at 0°Celsius gas is 770.51cm³.

According to Charles' law, with constant pressure, the volume of an ideal gas increases in direct proportion to the absolute temperature.

The rule also stipulates that when the pressure on a sample of a dry gas is maintained constant, the Kelvin temperature and the volume will be in direct proportion.

The equation of the law is PV = k.

Given:

V₁ = ?

V₂ = 731cm³

T₁ = 0° Celsius = 273K

T₂ = -14° Celsius = 259K

V₁/T₁ = V₂/T₂

V₁ = V₂T₁/T₂

= 731 × 273/259

= 770.51cm³

Thus, 770.51cm³ is the initial volume of NH₃ gas at 0° Celsius gas.

To learn more about Charles' law, follow the link;

https://brainly.com/question/16927784

#SPJ9

Answer:

you did not show me the options so i'm just going to say a few.

Explanation:

global warming

releases carbon dioxide into the air

other harmful chemicals

takes up a lot of space and time

Answer:

the number of moles of the gas is 0.00174 mol.

Explanation:

Given;

temperature of the, T = 300 K

volume of the gas, V = 1.45 L

Pressure of the gas, P = 3.0 kPa

The number of moles of the gas is calculated using Ideal gas equation, as follows;

PV = nRT

Where;

n is number of moles of the gas

R is the ideal gas constant, = 8.315 L.kPa/mol.K

n = PV / RT

n = (3 x 1.45) / (8.315 x 300)

n = 0.00174 mol.

Therefore, the number of moles of the gas is 0.00174 mol.

No

Answer:

3 ÷1,800

= 600 N

Thus the force needed is 600N

Methyl esters are created when carboxylic acids and diazomethane interact. Diazomethane is used to create methyl esters and has a high degree of reactivity.

Diazomethane reacts swiftly and extremely effectively, producing just N2 as a byproduct, making it an appealing alkylating agent for carboxylic and phenols (Black, 1983). As it responds, its inherent yellow color releases, automatically indicating the status of the reaction. Methyl esters are created when carboxylic acids and diazomethane interact. Diazomethane is created in-situ and then interacted with the carboxyl group right away to create the methyl ester due to its high reactivity. Diazomethane has mostly been used to transform carboxylic acids into esters (diazoalkales) that may be examined using GC/MS or HPLC-MS. In etherate solutions, methyl esters can be produced at room temperature quickly, thoroughly, and quantitatively.

Learn more about acids

https://brainly.com/question/29426933

#SPJ4

Cocoa butter, the fat in chocolate, can crystallize in any one of 6 different forms (polymorphs, as they are called). Unfortunately, only one of these, the beta crystal (or Form V), hardens into the firm, shiny chocolate that cooks want. Form VI is also a stable hard crystal, but only small amounts of it form from the good beta (Form V) crystals upon lengthy standing. When you buy commercial chocolate it is in the form of beta crystals.

When you melt chocolate and get it above 94° F, you melt these much desired beta crystals and other types of crystals can set up. If you simply let melted chocolate cool, it will set up in a dull, soft, splotchy, disgusting-looking form. Even the taste is different. Fine chocolate has a snap when you break it and a totally different mouthfeel from the other cocoa butter forms.

hope it's help you......!!!!!!!

please mark as brain list.......!!!!!!!

#rishu

Answer:

5.1 x 10^-3 M

Explanation:

Find number of moles of KOH used

.050 M /L  * .017 L = .00085 moles of KOH

  from the reaction equation, this will react with 1/2 as many moles of Ca 2+

     or   .000425 moles of Ca    <===== in .084 Liter of water

.000425 moles / .084 liter  = .00505 M   =~ 5.1 x 10^-3 M

Answer:

. A closed system allows only energy transfer but no transfer of mass. Example: a cup of coffee with a lid on it, or a simple water bottle. ... In reality, a perfectly isolated system does not exist, for instance hot water in a thermos flask cannot remain hot forever.

Answer:

Explanation:

The force acting on an object given it's mass and acceleration can be found by using the formula

force = mass × acceleration

From the question we have

force = 2500 × 5

We have the final answer as

Hope this helps you

Answer:

Solution given:

22.4 liter of O2=1 mole of O2

694litre of O2=\( \frac{1}{22.4} \times 694\)

=30.98or 31 mole of O2

Answer:

Group C

Explanation:

Precision is how close the values are to each other

A gaseous compound is subjected to increased pressure. What is happening to the temperature at the same time?

We assume the gas is in a container.

If we increase the pressure, is a direct relationship with temperature, so the temperature increases, but if the volume is not constant, it will decrease.

Answer: increased temperature, decreased volume.

You would use mixed solvents and a recrystallization purification of an unknown compound when you are trying to purify a solid compound from a mixture of other compounds.

Mixed solvents are used when a single solvent cannot dissolve the desired compound at room temperature but can dissolve it at a higher temperature. By using a mixture of two solvents, one that dissolves the compound well and one that does not, you can create a solution that will dissolve the compound at room temperature but will allow it to recrystallize as it cools. This process, called recrystallization, is a common method for purifying solid compounds. It is especially useful when the impurities in the mixture are soluble in the solvent at room temperature, but the desired compound is not.

Learn more about  recrystallization purification and mixed solvents :https://brainly.com/question/16835395

#SPJ11

In the process of recrystallisation, a hot solvent is combined with the impure sample in its solid state.

Recrystallization is called as the fractional crystallization. It is a procedure for purifying an impure compound in a solvent. The method of recrystallization is based on the principle that the solubility of most solids increases with increased temperature.  This is the prominent methods of purification of samples and is commonly executed by heating the sample mixture. This is a technique used to purify chemicals. This process occurs by dissolving a mixture of a compound and impurities in an appropriate solvent either the desired compound or impurities can be removed from the solution leaving the other behind. During this process the solvent and the solid solute will form a saturated solution together.

To learn more about Recrystallization

https://brainly.com/question/10194206

#SPJ4

Carbon (C) contains the largest number of moles.

Number of Moles of a substance can be defined as the ratio of given mass of the substance to the Molecular Mass of the substance.

We can write,

Number of moles = Given Mass / Molecular Mass                euation1

Given Mass of Na, C, Pb, Cu, Ne each = 10.0g

Molecular mass of Na = 22.9898 u

Molecular mass of C = 12u

Molecular mass of Pb = 207.2u

Molecular mass of Cu = 63.546 u

Molecular mass of Ne = 20.1797 u

After substituting the values of molecular mass and given mass of elements in equation1 , we will get

Number of moles of Na = (10/22.9898) = 0.4350

Number of moles of C = (10/12) = 0.8333

Number of moles of Pb = (10/207.2) = 0.0483

Number of moles of Cu = (10/63.546) = 0.1574

Number of moles of Ne = (10/20.1797) = 0.4955

So, we can clearly see that Carbon contains the largest number of moles.

To know more about Number of moles refer to the link:

https://brainly.com/question/13314627

#SPJ4

Answer:

The answer to this is simple.  

There is a school of thought that believes that natural fires are necessary.

Explanation

They are required to reduce the density of the forests that are so thick that when they eventually burn, the effects are usually catastrophic. According to one source, some of these forests are over a hundred years old. When eventually these kinds of forests catch fire, they become very hard to manage and the destruction the leave are usually worse off than if they had not been allowed to so heavy and impenetrable.  

Another reason put forward by this school of thought is that the countries who own these forests have politicised wildfires using them as an excuse to attract international funding/assistance because the fires are depleting the worlds protective greenery/earth biggest natural oxygen factory.

Cheers!

Answer:

There's No Answer Im Sorry

According to Einstein's mass-energy equivalence principle (E=mc²), a small amount of mass can be converted into a large amount of energy. In the case of nuclear fusion, when hydrogen isotopes (such as deuterium and tritium) combine to form helium, there is a slight difference in mass.

The mass of a pair of hydrogen isotopes (deuterium and tritium) before fusion is slightly greater than the mass of the resulting helium nucleus.

During the fusion process, a small amount of mass is converted into energy according to Einstein's equation.

This energy is released in the form of gamma rays and kinetic energy of the particles involved in the reaction.

This mass difference, known as the mass defect, is a result of the binding energy that holds the nucleus together.

The binding energy is the energy required to separate the nucleons (protons and neutrons) in the nucleus.

When hydrogen isotopes fuse, some of the mass is converted into binding energy, resulting in a slight decrease in the mass of the helium nucleus compared to the total mass of the hydrogen isotopes initially involved in the fusion reaction.

Read more about Isotopes.

https://brainly.com/question/28039996

#SPJ11

Answer:

A physical property is an aspect of matter that can be observed or measured without changing its chemical composition. Examples of physical properties include molecular weight.

A chemical property may only be observed by changing the chemical identity of a substance. In other words, the only way to observe a chemical property is by performing a chemical reaction

Explanation:

Properties of matter

The properties of matter are classified into; (I) Physical and, (ii) Chemical properties.

Physical properties: A physical property is an aspect of matter that can be observed or measured without changing its chemical composition. Examples of physical properties include molecular weight, density, color, melting and boiling point, etc.

Chemical properties: A chemical property may only be observed by changing the chemical identity of a substance. In other words, the only way to observe a chemical property is by performing a chemical reaction. This property measures the potential for undergoing a chemical change. Examples of chemical properties include and oxidation states, acidic or basic properties, flammability, heat of combustion, etc.

Answer:

Explanation:says these bars are like co vid i get em right off teh bat

The equilibrium constant at 1000K for the reaction CaCO3(s) + C(s) --> CaO(s) + 2CO(g) is K = K1.K2 = 0,039 . 1,9 = 0,074.

The equilibrium constant at 1000 K for the given chemical reaction, CaCO3(s) + C(s) CaO(s) + 2 CO(g), can be determined as follows:

\(K1 = 0,039\\K2 = 1,9\)

We know that the equilibrium constant of a reaction is the product of the equilibrium constants of its individual steps (if the reaction is made up of more than one step) under the given conditions. Therefore, we can use the following equations to calculate the equilibrium constant of the given reaction: \(Kc = \frac{K1. K2}{Keq}\) (where Keq is the equilibrium constant of the desired reaction) \(Kc = [(P(CO))^2/(P(CaCO3).P(C))] . 0,039 . 1,9\).

Now, we have to express the pressure of all the species involved in terms of the equilibrium constant of the reaction we need to find. For this, we use the following relation:

Keq = \((P(CaO).P(CO)^2)/(P(CaCO3).P(C))\). On substituting the above expression for Keq in the expression for Kc, we get:

Kc = \([(P(CO))^2/(P(CaCO3).P(C))] . 0,039 . 1,9\)

Keq = \((P(CaO).P(CO)^2)/(P(CaCO3).P(C))\)

On comparing the expressions for Kc and Keq, we get:

\(Kc = K1 . K2/Keq\\Kc = [(P(CO))^2/(P(CaCO3).P(C))] . 0.039 . 1.9\\Kc = (P(CaO).P(CO)^2)/(P(CaCO3).P(C))\)

Therefore, we can write: \((P(CaO).P(CO)^2)/(P(CaCO3).P(C))\)

Kc =\([(P(CO))^2/(P(CaCO3).P(C))] . 0,039 . 1,9(P(CaO).P(CO)^2)/(P(CaCO3))^2\)

\(Kc = 0,039. 1,9P(CO)^2/P(CaCO3) \\Kc = 0,074251/P(CaO) \\Kc = (P(CaCO3).P(C) )/P(CO)^2.\)

Now, using the expression for Keq, we can write:

\(Keq = (P(CaO).P(CO)^2)/(P(CaCO3).P(C))\\Keq = (P(CaCO3).P(C).P(CO)^2)/(P(CaCO3).P(C))\\Keq = P(CO)^2/P(C)\\Keq = 0.07425\)

Learn more about equilibrium constant: brainly.com/question/3159758

#SPJ11