the reaction of nitric acid, hno3(aq), with calcium carbonate, caco3(s) produces calcium nitrate, carbon dioxide, and water. which of the following is the correct balanced equation for this reaction?
Answers
The balanced equation for the reaction of nitric acid (HNO3(aq)) with calcium carbonate (CaCO3(s)) is:
\(2 HNO3(aq) + CaCO3(s) - > Ca(NO3)2(aq) + CO2(g) + H2O(l)\)
In the balanced equation, we have two moles of nitric acid reacting with one mole of calcium carbonate. This yields one mole of calcium nitrate, one mole of carbon dioxide, and one mole of water. The coefficients in the equation ensure that the number of atoms of each element is the same on both sides of the reaction, satisfying the law of conservation of mass. This balanced equation represents a double displacement reaction, where the carbonate ion (CO3^2-) from calcium carbonate is replaced by the nitrate ion (NO3-) from nitric acid, resulting in the formation of the products.
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Related Questions
Lava that cools quickly forms: A. basalt B. granite C.quartz D. none the above
Answers
Answer:
I think the answer would be B. hope this helps!!
Explanation:
What will be the [OH-], [H3O], pH and pOH of a 0. 025 M weak acid olution? (pKA= 4. 615)
Answers
The [OH-] of the 0.025 M weak acid solution will be equal to the pKA of the acid, 4.615.
What is weak acid solution?
A weak acid solution is a solution that contains an acid that is not completely ionized in water. Weak acids, such as acetic acid, have pH values between 4.5 and 6.0. These acids are not strong enough to completely break apart in water, leaving some of the molecules still intact. Because of this, weak acids form molecules that can react with other molecules, such as bases, in solution.
This is because the equilibrium of the acid dissociation reaction is reached with the same concentration of acid and its conjugate base in solution. The [H3O] will be equal to 0.025 M, as the acid is in dissociation equilibrium with its conjugate base. The pH of the solution can be calculated by taking the negative log of the [H3O], which will be 1.59. The pOH can be calculated by taking the negative log of the [OH-], which will be 4.615.
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a homogeneous mixture has the same composition throughout, while a heterogeneous mixture has different compositions in different regions.
Answers
This is the difference between a homogeneous and a heterogeneous mixture.
For example, salt (NaCl) and water make a homogeneous mixture (the same proportions of its components throughout any given sample), because both substances are polar.
A solution is homogeneous mixture composed of two or more substances.
In aqueous solution, a solvent is water and solute (in this example sodium chloride) is a substance dissolved in water.
A heterogeneous mixture is not uniform in composition (in this mixture different metals and minerals), but proportions of its components (for example mixture particles of different colors, small pebbles) vary throughout the sample.
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Which statements describe the electron sea model? Check all that apply.
Answers
The statements that describe the electron sea model are;
Electrons all have approximately the same energy.
Electrons move freely among atoms (delocalized).
What is the electron sea model?We know that there are several models that can be used for the determination of the movement of the electrons in the atom. In the electron sea model, we are saying that the electrons are quite free to move freely from one atom to the another and they are not attached to any particular atom.
We have to know that the electrons are known to occur in specific energy levels. The electrons must only be found in the energy level that corresponds to that particular electrons. This also means that the electrons that are in the electron sea must all be of the same energy.
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Missing parts;
Which statements describe the electron sea model? Check all that apply. Electrons all have approximately the same energy. Electrons move among orbitals of different energies. Electrons move freely among atoms (delocalized).
write the equation of the chemical reaction of burning glucose (C6H12O6)
Answers
Answer:
C6H12O6 + 6O2 → 6CO2 + 6H2O.
Explanation:
Answer:
please see below
Explanation:
the chemical formula of glucose is C6H12O6
\(C_{6} H_{12}O_{6} + 6O_{2} ------> 6CO_{2} + 6H_{2}O + energy\)
why does dew form on grass in the early morning
Answers
Dew forms on the grass in the early morning due to the process of condensation.
During the day, the sun heats up the ground and the air around it. When the sun sets, the ground and the air begin to cool down. As the air cools, its ability to hold moisture decreases. When the temperature drops below the dew point, which is the temperature at which the air is saturated and cannot hold any more moisture, the excess moisture in the air condenses into liquid water droplets. These droplets then collect on cool surfaces, such as grass, forming dew.
The grass is a good surface for dew to form on because it is usually cooler than the surrounding air due to transpiration, the process by which water evaporates from the leaves and stems of plants. This causes the grass to cool down faster than the air around it, making it more likely for dew to form on its surface.
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Which phase of matter is the rarest in the solar system?
O A. Solids
O B. Plasma
O C. Gases
O D. Liquids
Answers
Answer: the answer is LIQUIDS
Answer:
D. Liquids
Explanation:
Liquid is probably the rarest state in the Universe, with the only discovered naturally occurring liquids being the Earth's surface water and our liquid metal core.
Can someone help me out with why is the outer core of Earth is important in you’re own words?! A mini paragraph plsss
Answers
Answer:
the outer core is important because the outer core is responsible for earth's magnetic field which protects earth from harmful particles that comes from sun and also contains some natural metal like nikle and iron.
is this much paragraph enough comment down below..
hope this helps you ☺️☺️
why is it impossible to have an undiscovered element that would fit between sodium and magnesuim
Answers
Answer:
Sodium has 11 protons and Magnesium has 12. The way that the periodic table is set up doesn't allow for any elements to be in between. The element would have to have 11.5 protons, which is impossible
Structure of periodic table is designed in a way that successive elements have difference of 1 electron and proton as sodium and magnesium have 11 and 12 protons respectively there is no space for any other element.
What is periodic table?Periodic table is a tabular arrangement of elements in the form of a table. In the periodic table, elements are arranged according to the modern periodic law which states that the properties of elements are a periodic function of their atomic numbers.
It is called as periodic because properties repeat after regular intervals of atomic numbers . It is a tabular arrangement consisting of seven horizontal rows called periods and eighteen vertical columns called groups.
Elements present in the same group have same number of valence electrons and hence have similar properties while elements present in the same period show gradual variation in properties due to addition of one electron for each successive element in a period.
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What occurs when a neutron strikes a stable isotope and causes it to become unstable? A. Energy to mass conversion
B. None of these
C. Natural radioactive decay
D. Nuclear fission
Answers
Answer:
A
Explanation:
become unstable and split which will add more mass to it I believe but then again if it splits theidI don't know if it adding mass or just keeping the same so either A or B
In the Millikan oil droplet experiment, the oil is sprayed from an atomizer into a chamber. The droplets are allowed to pass through the hole into the chamber so that their fall can be observed. The top and bottom of the chamber consist of electrically charged plates. The upper plate is positively charged, and the lower plate is negatively charged. X rays are introduced into the chamber so that when they strike the oil droplets, the droplets will acquire one or more negative charges. The electric field (voltage) is applied to the metal plates.
Watch the animation and identify the effects of an electric field on the motion of a negatively charged oil droplet. Consider the gravitational force as Fg and the electric force as Fe. All the other forces acting on the oil droplet can be ignored as their effect on the motion of the oil droplet is negligible.
A/ In the absence of an electric field, the oil droplet falls freely due to the gravitational force.
B/ If Fe is increased until it is equal to Fg, the negatively charged oil droplet will remain stationary.
C/ If Fe is greater than Fg, the negatively charged oil droplet will move freely toward the negatively charged plate.
D/ In the presence of an electric field, the negatively charged oil droplet moves freely toward the negatively charged plate.
** I chose B, but that was the wrong answer
Answers
C/ If Fe is greater than Fg, the negatively charged oil droplet will move freely toward the negatively charged plate.
In the Millikan oil droplet experiment, the negatively charged oil droplets are subjected to an electric field created by the charged plates. The electric force (Fe) acts on the oil droplet in a direction opposite to the gravitational force (Fg). When Fe is greater than Fg, the electric force overcomes the gravitational force, causing the negatively charged oil droplet to experience an upward force. As a result, the oil droplet moves freely upward toward the negatively charged plate.
Option B is incorrect because if Fe is equal to Fg, the forces balance each other, resulting in a stationary droplet. However, the question states that Fe is increased until it is greater than Fg, implying that the droplet is no longer stationary but moves in response to the electric force.
Therefore, option C is the correct answer, as it describes the effect of an electric field on the motion of a negatively charged oil droplet in the Millikan oil droplet experiment.
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Determine the electric flux through each surface whose cross-section is shown below. Si/ -20 - S5 SA 30 Enter your answer in terms of q and Eo (a) Os = 1 (b) Os2 = (c) Ps3 = (d) Os4= (e) Ps3 = (1) ¢se =
Answers
The electric flux through the surface Os is zero.
Electric flux through a surface is defined as the total number of electric field lines passing through it. The electric field vector is always perpendicular to the surface, and it is proportional to the area of the surface. Therefore, electric flux can be calculated by multiplying the electric field and the area vector.ϕ = E.A, where ϕ is the electric flux, E is the electric field, and A is the area vector.
Let's now find the electric flux through each surface: Electric flux through Os = 1: Since the electric field is parallel to the surface, the electric flux through Os is zero.ϕ = E.A = E.0 = 0. Thus, the electric flux through Os is zero.
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Calculate the Molar Mass of Radon pentaiodide (Rnls)
857
349
1237
Answers
Explanation:
222.01758 g/mol
3.1Computed Properties
Is bacteria alive? What can bacteria do?
Answers
Answer:
yes, bacteria is alive because it can basically generate energy and including molecules to keep itself alive. There are sone bacteria that can help to digest food, destroy disease-causing cells, also giving the body its needed vitamins.
The Liquified Petroleum Gas (LPG) has the composition of 60% Propane (C 3
H 8
) and 40% Butane (C 4
H 10
) by volume: (a) Find the wet volumetric and gravimetric analysis of the products of combustion when the equivalence ratio (Φ)=1.0. (b) What is the stoichiometric air to fuel ratio for the LPG.
Answers
The balanced combustion reaction for propane can be represented as:
C₃H₈ + (5/2)O₂ → 3CO₂ + 4H₂O
And the balanced combustion reaction for butane can be represented as:
C₄H₁₀ + (6.5)O₂ → 4CO₂ + 5H₂O
Since LPG is composed of 60% propane and 40% butane by volume, we can calculate the wet volumetric and gravimetric analysis based on these proportions.
Wet volumetric analysis:
For the wet volumetric analysis, we consider the volume of the products of combustion relative to the volume of the LPG consumed.
Propane (C₃H₈):
The stoichiometric coefficient of propane in the combustion reaction is 3. Therefore, for every mole of propane burned, we will have 3 moles of CO₂ and 4 moles of H₂O formed.
Butane (C₄H₁₀):
The stoichiometric coefficient of butane in the combustion reaction is 4. Therefore, for every mole of butane burned, we will have 4 moles of CO₂ and 5 moles of H₂O formed.
Considering the initial composition of 60% propane and 40% butane by volume, we can calculate the volumetric composition of the products of combustion:
Volumetric composition of CO₂:
(0.6 * 3) + (0.4 * 4) = 3.6
Volumetric composition of H₂O:
(0.6 * 4) + (0.4 * 5) = 4.6
Therefore, the wet volumetric analysis of the products of combustion is 3.6 parts CO₂ to 4.6 parts H₂O.
Wet gravimetric analysis:
For the wet gravimetric analysis, we consider the mass of the products of combustion relative to the mass of the LPG consumed.
Using the molar masses of the compounds involved in the combustion reaction:
Molar mass of CO₂ = 44 g/mol
Molar mass of H₂O = 18 g/mol
Gravimetric composition of CO₂:
(0.6 * 3 * 44 g/mol) + (0.4 * 4 * 44 g/mol) = 158.4 g
Gravimetric composition of H₂O:
(0.6 * 4 * 18 g/mol) + (0.4 * 5 * 18 g/mol) = 74.4 g
Therefore, the wet gravimetric analysis of the products of combustion is 158.4 grams CO₂ to 74.4 grams H₂O.
(b) The stoichiometric air to fuel ratio for LPG can be determined based on the balanced combustion equations for propane and butane.
For propane (C₃H₈):
C₃H₈ + (5/2)O₂ → 3CO₂ + 4H₂O
The stoichiometric coefficient for propane is 1, which means we need 5/2 moles of O₂ for every mole of propane.
For butane (C₄H₁₀):
C₄H₁₀ + (6.5)O₂ → 4CO₂ + 5H₂O
How many grams of CaCl₂ would be required to produce a 3.5 M solution with a volume
of 2.0 L?
Answers
2
would be required to make
2 L
of a
3.5 M
solution.
Explanation:
Molarity
=
moles of solute
liters of solution
A
3.5 M CaCl
2
solution contains
3.5 moles
CaCl
2
/L solution
.
We need to convert moles
CaCl
2
to grams. We do this by multiplying moles
CaCl
2
by its molar mass
(
110.978 g/mol
)
.
3.5
mol CaCl
2
×
110.978
g CaCl
2
1
mol CaCl
2
=
300 g CaCl
2
rounded to two significant figures
Since
300 g CaCl
2
are needed to make
1 L
of a
3.5 M
solution,
600 g CaCl
2
are needed to make
2 L
of a
3.5 M
solution.
I NEED HELP PLEASE, THANKS!
Electrochemistry is important in many aspects of daily life.
i. Define voltaic cell.
ii. Fill in the blanks for the drawing of a voltaic cell that’s made with copper/copper (II) nitrate (E° = 0.34 V) and zinc/zinc (II) nitrate (E° = –0.76 V). Briefly explain the role of the salt bridge.
iii. Using the equation E°cell = E°cathode – E°anode, calculate the overall cell potential for the cell.
iiii.
a. _____________
b. _____________
c. _____________
d. _____________
e. _____________
f. _____________
g. _____________
h. _____________
Answers
Answer:
Here's what I get
Explanation:
(i) Voltaic cell
A voltaic cell is a device that uses a chemical reaction to produce electrical energy.
(ii) Overall Cell Potential
The standard reduction potentials for the half-reactions are
ℰ°/V
Cu²⁺ + 2e⁻ ⇌ Cu 0.34
Zn²⁺ + 2e⁻ ⇌ Zn -0.76
The half-reaction with the more positive potential is the reduction half-reaction. It is the reaction that occurs at the cathode.
The half-reaction with the more negative potential is the oxidation half-reaction. It is the reaction that occurs at the anode.
We reverse that half-reaction and subtract the voltages to get the cell reaction.
ℰ°/V
Cathode: Cu²⁺ + 2e⁻ ⇌ Cu 0.34
Anode: Zn ⇌ Zn²⁺ + 2e⁻ -0.76
Cell: Zn + Cu²⁺ ⇌ Zn²⁺ + Cu 1.10
\(\mathcal{E}_{\text{cell}}^{\circ} = \mathcal{E}_{\text{cat}}^{\circ} - \mathcal{E}_{\text{an}}^{\circ} = \text{0.34 V} - \text{(-0.76 V)} = \text{0.34 V} + \text{0.76 V} = \textbf{1.10 V}\)
(iii) Diagram
The specific labels will depend on your textbook.
They are often as follows.
a. Electron flow
b. Voltmeter or lightbulb
c. Electron flow
d. Cathode or Cu
e. Cu²⁺(aq) and NO₃⁻(aq)
f. Salt bridge
g. Zn²⁺(aq) and NO₃⁻(aq)
h. Anode or Zn
The salt bridge enables ions to flow in the internal circuit and to maintain electrical neutrality in the two compartments.
It often consists of a saturated solution of KCl.
As Zn²⁺ ions form in the anode compartment, Cl⁻ ions move in to provide partners for them.
As Cu²⁺ ions are removed from the cathode compartment, K⁺ ions move in to replace them.
Answer:a. Electron flow
b. Voltmeter or lightbulb
c. Electron flow
d. Cathode or Cu
e. Cu²⁺(aq) and NO₃⁻(aq)
f. Salt bridge
g. Zn²⁺(aq) and NO₃⁻(aq)
h. Anode or Zn
Explanation:
will mark brainlest 1) Now that you have studied the facts about the Severn River, you are ready to make a decision. What questions would you want answered if you were to determine whether to build a tidal power plant at the Severn River?
Answers
Answer:
The questions I would like to answer are:
Will the productivity of the river severn offset the cost of installing the plant?
Is it possible to build a dam on site?
Is it possible to establish submerged turbines in this location?
How would human life and nature be impacted by the plant?
Explanation:
Tidal power plants are signals that use tidal energy to generate electricity. The installation of this type of plant is quite expensive and involves the establishment of dams on site to take advantage of the differences between high and low tides and the establishment of submerged turbines to take advantage of sea currents.
To decide whether I would decide to build a tidal plant on the Severn River, I would need to evaluate a few things to make sure that the project is viable. For that I would ask myself some questions like:
Will the productivity of the river severn offset the cost of installing the plant? (If the installation costs are greater than the capacity of this river to promote high generation of electricity, it would be better to abandon the project)
Is it possible to build a dam on site? Is it possible to establish submerged turbines in this location? (It is necessary to consider the physical and chemical characteristics of the place to know if it is possible to install these two equipment and in a way that they work efficiently)
How would human life and nature be impacted by the plant? (Projects like this include major environmental and social impacts. These impacts must be analyzed and ways to mitigate them must be considered and included in the project.)
Find the mass in grams of 3.012 X 10^24 ions Ca2+ ions (40.08 g/mol)
SOMEONE PLEASEEEE HELP!!!!!!!
Answers
The mass of 3.012 x 10^24 Ca2+ ions is approximately 20.03 g.
What is molar mass?
Molar mass is defined as the ratio between the mass and the amount of substance of any sample of said compound.
To find the mass of a specific number of ions, we can use the molar mass of the ions.
Given:
Ca2+ ion has a molar mass of 40.08 g/mol
Number of Ca2+ ions = 3.012 x 10^24
First, let's convert the number of ions to moles:
moles = (3.012 x 10^24 ions) / (6.022 x 10^23 ions/mol)
moles = 0.5012 mol
Next, let's multiply the number of moles by the molar mass to get the mass in grams:
mass (g) = moles * molar mass (g/mol)
mass (g) = 0.5012 * 40.08 g/mol
mass (g) = 20.03 g
Therefore,The mass of 3.012 x 10^24 Ca2+ ions is approximately 20.03 g.
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In an experiment, 10.6 grams of steam is produced and then cooled. If the heat of vaporization is 2,257 joules/gram, how much energy is released after all the vapor turns to liquid?
Answers
Answer:
23,900 joules
Explanation:
plato answer
Answer:
23,900 joules
Explanation:
Edmentum
What property of a metal does the image represent
Answers
Answer:
malleable
Explanation:
The image represent in malleable property of metal.
The image possibly represents the photoelectric effect of a metal, which is when it emits electrons after being exposed to electromagnetic radiation. Metals are also characterized by physical properties such as conductivity, malleability, metallic luster, and metallic bonding.
Explanation:Based on your question, the image possibly represents the photoelectric effect, a key property of metals. This phenomenon occurs when a metal surface exposed to electromagnetic waves of a certain frequency absorbs radiation and emits electrons. These emitted electrons are called photoelectrons. Metals can also exhibit free electron model behavior, where electrons freely roam within the metal structure.
Metals possess unique physical properties like conductivity, malleability, and metallic luster. Malleability refers to the metal's ability to deform without breaking, while conductivity refers to the metal's ability to transfer heat or electricity. A metallic luster gives metals their characteristic shiny appearance.
Finally, metals are also known for their metallic bonding—a unique force that holds together the atoms within a metallic solid. Metallic bonding gives rise to many useful and varied bulk properties of metals.
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identify an important difference between the cytoplasm of the axon and that of the axon terminal. choose the correct option.
Answers
C) Presence of ribosomes
The correct option is C) Presence of ribosomes.
Ribosomes are normally absent from the cytoplasm of the axon terminal, whereas they are present in the cytoplasm of the axon. Protein synthesis is carried out by ribosomes, and the fact that they are found in the cytoplasm suggests that protein synthesis can also take place in the axon. Protein synthesis is typically not necessary in the axon terminal, as this structure's main job is to release neurotransmitters and promote communication with nearby neurons or target cells. Due to the absence of ribosomes in the axon terminal, protein synthesis differs between the axon and axon terminal.
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--The question is incomplete, the complete question is:
"Identify an important difference between the cytoplasm of the axon and that of the axon terminal. Choose the correct option. A) Protein content of the membrane differs from the soma B) Occurrence of protein synthesis C) Presence of ribosomes D) Large numbers of mitochondria"--
I need some help with #2 pls
Answers
The gram-formula mass of the product in the given reaction is 201.8g.
How to calculate gram-formula?Gram Formula mass is the atomic mass of one mole of an element or a molecular compound, or an ionic compound.
To calculate the gram formula mass of a compound, the following applies;
count the number of atoms/ions of each element that is present in one formula unit. Multiply the atomic mass of each element by the total number of atoms/ions of that element present in the formulaAdd all of the masses to obtain the gram formula mass for the compoundAccording to this question, propene reacts with bromine to produce bromo propane with the molecular formula; C₃H₆Br₂.
Gram formula mass = 12(3) + 1(6) + 79.9(2) = 201.8g
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How many electron energy shells are occupied in an unstable atom of silicon
Answers
Answer:
4
Explanation:
it will share its valence electrons with other elements to acquire noble gas confriguration of the nearest inert element.
Silver and sulfur are combined to form 65.0 g silver sulfide. How many atoms of silver are necessary to do this?
Answers
3.206 x 10^23 atoms of silver are required to form 65.0 g of silver sulfide.
Steps
To determine how many atoms of silver are necessary to form 65.0 g of silver sulfide, we first need to calculate the number of moles of silver sulfide present in 65.0 g of the compound using its molar mass.
The molar mass of silver sulfide (Ag2S) can be calculated by summing the atomic masses of its constituent atoms:
Molar mass of Ag2S = (2 x atomic mass of Ag) + atomic mass of S
= (2 x 107.87 g/mol) + 32.06 g/mol
= 243.8 g/mol
Now we can calculate the number of moles of Ag2S present in 65.0 g of the compound:
Number of moles of Ag2S = mass of Ag2S / molar mass of Ag2S
= 65.0 g / 243.8 g/mol
= 0.2665 mol
From the chemical formula of silver sulfide (Ag2S), we know that 2 moles of silver are required to form 1 mole of Ag2S. Therefore, we can use this stoichiometric ratio to calculate the number of moles of silver required:
Number of moles of Ag = 2 x number of moles of Ag2S
= 2 x 0.2665 mol
= 0.5330 mol
Finally, we can use Avogadro's number (6.022 x 10^23) to convert the number of moles of silver to the number of atoms of silver:
Number of atoms of Ag = number of moles of Ag x Avogadro's number
= 0.5330 mol x 6.022 x 10^23 atoms/mol
= 3.206 x 10^23 atoms
Therefore, 3.206 x 10^23 atoms of silver are required to form 65.0 g of silver sulfide.
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What happens to wavelength as wave frequency increases?
Answers
Answer:
As a wavelength increases in size, its frequency and energy (E) decrease. From these equations you may realize that as the frequency increases, the wavelength gets shorter. As the frequency decreases, the wavelength gets longer.
Explanation:
what is the element name for 2,5
Answers
Answer:
I think it's vanadium
Explanation:
Hope this helps
what is the wave speed
a wave with a wave length of 1000 m and a frequancy of 3000000 Hz
Answers
Answer:
v = 3,000,000,000 m/s
Explanation:
v = f *L
v = 3,000,000 * 1000
v = 3,000,000,000 m/s
molecule x contains a sugar and a phosphate group. what is molecule x ?
Answers
as a result of the reactions of the citric acid cycle, the carbons from acetyl coa are released as........
Answers
As a result of the reactions of the citric acid cycle, the carbons from acetyl CoA are released as carbon dioxide.
What is citric acid cycle?The Citric Acid Cycle derives its name from the reaction that occurs when acetyl via acetyl coenzyme A and oxaloacetate combine to generate citrate.
Since the enzymes extract carbon (in the carbon dioxide form) and hydrogen/electrons, intermediate molecules are created. As a byproduct, carbon dioxide is emitted. As a result of the reactions of the citric acid cycle, the carbons from acetyl CoA are released as carbon dioxide.
Therefore, as a result of the reactions of the citric acid cycle, the carbons from acetyl CoA are released as carbon dioxide.
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