how many asymmetric centers does the following compound have? ch3chch=chch3|oh

Part A: If D was removed, the equilibrium would have shifted towards the product, given the proposed change.

There are various ways to stress an equilibrium. One tactic is to alter the reactant or product of a chemical reaction after it reaches equilibrium. More product is added to reduce the tension, which shifts the equilibrium to reactants. The equilibrium shifts when a reactant or product is removed, producing more of the removed reactant or product, respectively.

As we stress a chemical reaction, it loses equilibrium and starts to migrate back towards equilibrium in a way that lessens the stress. Le Chatelier's principle is the name given to the formal formulation, which states that if an equilibrium is stressed, the reaction will change to reduce the stress.

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Correct question is:

For the following reaction, determine which way the equilibrium would shift, toward the products or toward the reactants, given the proposed change. Assume the reaction is endothermic.

A + B → C + D

Part A: If D was removed

Part B: If more B was added to the reaction

Part C: If the reaction was heated

Answer:

Human activities have a tremendous impact on the carbon cycle

Explanation:

Burning fossil fuels, changing land use, and using limestone to make concrete all transfer significant quantities of carbon into the atmosphere. ... The ocean absorbs much of the carbon dioxide that is released from burning fossil fuels.

Answer:

In atomic physics and quantum chemistry, the electron configuration is the arrangement of electrons in an atom, molecule, or other physical structure (e.g., a crystal). ... The concept is also useful for describing the chemical bonds that hold atoms together.

Explanation:

hope this helps :)

Answer:

b. \(\% diss =4.4x10^{-2}\%\)

Explanation:

Hello there!

In this case, given the ionization reaction of HClO as weak acid:

\(HClO\rightleftharpoons H^++ClO^-\)

We can write the equilibrium expression as shown below:

\(Ka=3.5x10^{-8}=\frac{[H^+][ClO^-]}{[HClO]}\)

In such a way, via the definition of x as the reaction extent, we can write:

\(3.5x10^{-8}=\frac{x^2}{[HClO]}\)

As long as Ka<<<<1 so that the x on the bottom can be neglected. Thus, we solve for x as shown below:

\(x=\sqrt{3.5x10^{-8}*0.18} =\\\\x=7.94x10^{-5}M\)

And finally the percent dissociation:

\(\% diss=\frac{x}{[HClO]} *100\%\\\\\% diss=\frac{7.94x10^{-5}M}{0.18}*100\% \\\\\% diss =0.044\%=4.4x10^{-2}\%\)

Which is choice b.

Best regards!

Answer:

are electrons causing the ion to have a positive charge and anions are electrons that have a negative charge

Explanation:

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.

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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The main reservoirs of the carbon cycle are the atmosphere, oceans, land (including vegetation and soils), and fossil fuels. In these reservoirs, carbon exists in both inorganic and organic forms.

The inorganic carbon cycle involves the exchange of carbon dioxide (CO2) between the atmosphere and oceans through processes like photosynthesis and respiration.

Organic carbon, on the other hand, is found in living organisms, dead organic matter, and soil organic matter. It is cycled through processes such as decomposition and consumption by organisms. The interactions between the inorganic and organic carbon cycles occur primarily in the biosphere, where photosynthesis converts inorganic carbon into organic carbon compounds. While inorganic carbon is primarily in the form of CO2, organic carbon is present in complex organic molecules. Both forms of carbon play crucial roles in energy transfer, nutrient cycling, and climate regulation.

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The mass number of atoms is calculated by adding the number of neutrons and protons.

The smallest piece of stuff that makes up an element is an atom. It consists of a nucleus with protons and neutrons and orbitals with a specific number of electrons surrounding it. One can identify and distinguish an element's atom from the others by knowing the nuclear makeup of a certain atom. In actuality, the periodic table was created expressly to organize the elements in terms of their atomic and mass numbers and nuclear compositions.

According to the periodic chart, an atom's nuclear composition is closely related to its atomic and mass number. The number of protons in the nucleus or the number of electrons around an atom determines its atomic number for neutral atoms. The amount of components inside the nucleus affects the mass number, meanwhile. The total number of protons and neutrons in the nucleus is used to calculate it. As an illustration, the mass number of the element helium is 4, as its atom has two protons and two neutrons in its nucleus.

Therefore, the correct option is (d).

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The compound which has the bond with the smallest dipole moment is- d. \(H_{2}Te\).

Moving up a column on the periodic table causes electronegativity to increase and moving down a group (column) causes electronegativity to decline. As a consequence, as the hydrogen-chalcogen bond moves up the column, its electronegativity difference and dipole moment grow. As a result, from biggest to smallest, the four bonds' dipole moments are as follows: H-O > H-S > H-Se > H-Te. The magnitude of the dipole moment along the link between the atoms is proportional to (and indicative of) the differential in electronegativity between two covalently bonded atoms. Dipole moments between atoms are greater when there are larger differences in electronegativity.

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Answer:

9.90

Explanation:

Given [H+] = 1.25 x 10^-10 M, we can calculate the pH using the formula:

pH = -log10([H+])

pH = -log10(1.25 x 10^-10)

Using logarithmic properties:

pH = -log10(1.25) - log10(10^-10)

Since log10(10^-10) is equal to -10:

pH = -log10(1.25) - (-10)

pH = -log10(1.25) + 10

Now, evaluating the logarithm using a calculator:

pH = -0.0969 + 10

pH = 9.9031

Therefore, the pH of the solution with [H+] = 1.25 x 10^-10 M is approximately 9.9031. Rounding it to two decimal places, the pH is approximately 9.90.

Answer:

unable to compute

Explanation:

Answer:

2

Explanation:

Answer:

1. Sperm - The male reproductive cell

2. Fertilization - The union of the male gamete (sperm cell) and the female gamete (egg cell)

3. Conception - The fertilization of a female egg cell with a male sperm cell

4. Testes, Testicles - Male gonads

5. Ovary, Ovaries - Female gonads

6. Gonad - Gamete-producing organ in animals

7. Eggs - Female reproductive cells

8. Hormone - a body chemical that controls growth and activity

Explanation:

Hope this helped!

Answer:

False, it's not an example of a resonance structure.

Answer:

6 hours

Explanation:

If it is traveling at 50mph and needs to reah 300 miles, to figure this problem out you would want to divide 300 by 50 to get 6 hours. So it will take six hours until the car travels 300 miles

Hope this helps.

Answer: A car travels at a rate of 50 miles per hour. how long will it take the car to travel 300 miles?

Explanation: .

Applying the distance formula:

d = rt

where

d is distance (300 miles)

r is rate (50 mph)

t is time (hours)

.

300 = 30t

300/30 = t

10 hours = t

(D) 769 KJ energy evolved during the reaction of 48.7 g of Al, according to the reaction given.

Mass of aluminium (Al) = 48.7 g

Molar mass of aluminum (Al) = 27 g/mol

Heat of reaction = -852 KJ

Energy evolved = ?

Write the balanced chemical equation

    Fe₂O₃(s) + 2 Al(s)    →    Al₂O₃(s) + 2 Fe(s)

Calculate the number of moles of Al

    number of moles = mass / molar mass

Put the values

    number of moles of aluminum = 48.7 g / 27 g/mol

    number of moles of aluminum = 1.8037 mol

It is clear that the number of moles of Fe₂CO₃ is half of Al, divide the number of moles of Al by 2

    number of moles of Fe₂CO₃ = 1.8037 / 2

    number of moles of Fe₂CO₃ = 0.90185

    heat of reaction for 1 mole of Fe2CO3 = 852 KJ

    heat of reaction for 0.90185 moles of Fe₂CO₃ = 0.90185 mol × 852 KJ

    heat of reaction for 0.90185 moles of Fe₂CO₃ = 769 KJ

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In a nucleophilic substitution reaction, a two-step mechanism involves first bond breakage to form a carbocation intermediate, followed by bond formation with the nucleophile.

In an SN1 reaction, the nucleophile attacks the substrate after the leaving group has departed, resulting in a two-step process. This reaction is generally favored by weak nucleophiles, as they are less likely to compete with the leaving group. On the other hand, an SN2 reaction involves a single concerted step in which the strong nucleophile directly attacks the substrate and the leaving group departs simultaneously. The higher concentration of a strong nucleophile increases the likelihood of an SN2 reaction. In summary, weak nucleophiles favor the SN1 mechanism, while strong nucleophiles in high concentration favor the SN2 mechanism for nucleophilic substitution
In a nucleophilic substitution reaction, a two-step mechanism involves first bond breakage to form a carbocation intermediate, followed by bond formation.

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The molecular mass of 3.6 moles of H₂SO₄.

So let us first calculate the molecular mass of 1 mole of H₂SO₄ and then when we calculate the molecular mass of 1 mole of H₂SO₄, we will calculate the molecular mass of 3.6 moles of H₂SO₄ by multiplying the molecular mass of 1 mole of H₂SO₄ by 3.6

Molecular mass of 1 mole of H₂SO₄ = 2*(molecular mass of Hydrogen) + (molecular mass of Sulphur ) + 4*(molecular mass of oxygen )

Molecular mass of 1 mole of H₂SO₄ = 2*1 + 32 + 4*16 = 98 grams

Mass of 3.6 moles H₂SO₄ = 3.6*98 =352.8 grams

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False

What is receptor?

In a cell or on its surface, cellular receptors are proteins that take in signals. This chemical signal occurs when a protein-ligand interacts to a protein receptor during normal physiology. A cell releases a chemical messenger called the ligand to signal other cells or to signal other cells.

False, most ligands form covalent bonds with their associated receptors, these complexes are more or less permanent and can only be broken through the hydrolysis of atp because these complexes are more or less permanent and cannot  only be broken through the hydrolysis.

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Answer:

The sun doesn't "burn". Since the sun is essentially a sphere of gas, the sun glows through a process called "nuclear fusion" which happens at its core and is seen through its surface.

Answer:

Luster: Metals are shiny when cut, scratched, or polished.

Malleability: Metals are strong but malleable, which means that they can be easily bent or shaped. ...

Conductivity: Metals are excellent conductors of electricity and heat.

Three properties of metals are:

Good conductors of electricity and heat: Metals have a high electrical and thermal conductivity, meaning they allow the flow of electricity and heat through them with ease. This property makes metals valuable in various applications, such as electrical wiring and heat transfer.

Malleability: Metals can be easily shaped and molded into various forms without breaking. They can be hammered, rolled, or pressed into thin sheets without losing their structural integrity. This property allows metals to be used in manufacturing processes and the creation of different products.

Ductility: Metals can be drawn into thin wires without breaking. This property makes them suitable for electrical wiring and cable manufacturing, where flexibility is required.

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Atoms are basically the smallest units of matter. They are made up of  protons, neutrons and electrons.

The periodic table is a tabular arrangement of the chemical elements which are organized on the basis of their atomic numbers, electron configurations, and recurring chemical properties. The periodic table lists the elements in order of increasing atomic number and grouped into rows (periods) and columns (groups). The elements in the same column have similar chemical properties, with the elements in the same row having similar outer electron configurations.

Atom X: Number of protons = 6

Atom Y: Number of protons = 6

b. Atoms X and Atom Y are in the same family; but not the same row; in the periodic table.

Hence, Option B is correct.

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The question is:

Question 3 (5 points) (02.06 MC) The table compares some characteristics of two atoms_ Charged Particles Atom Number 0f Neutrons Mass Number] Use the table t0 determine the number of protons for each atom: Then_ choose the statement below that Is true about the two atoms_ points) Atom X and Atom are in the same row; but not the same family; on the periodic table Atoms X and Atom Y are in the same family; but not the same row; in the periodic table; Atom Xis in a column to the right of Atom Y in the periodic table: Atom X and Atom occupy the same position in the periodic table because they are isotopes.

= 6.42 × 10²²

(scientific notation)

= 6.42e22

(scientific e notation)

= 64.2 × 10²¹

(engineering notation)

(sextillion; prefix zetta- (Z))

= 64200000000000000000000

(real number)

The molecule for further use in the citric acid cycle is NAD+.

In the absence of oxygen after glycolysis cells undergo fermentation without the citric acid cycle or oxidative phosphorylation. The citric acid cycle requires oxygen. This is because the electron transport chain requires an electron acceptor to regenerate her NAD, which is the role of oxygen.

Some of this is considered an aerobic pathway because the NADH and FADH2 produced must transfer electrons to the next pathway in the system using oxygen. Without oxygen, this transfer would not occur. Two carbon atoms from each acetyl group enter the citric acid cycle. Oxygen is the terminal electron acceptor of the mitochondrial electron transport chain and is therefore required for energy production via oxidative phosphorylation.

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Geologists use the following tests to distinguish minerals and the rocks they make: hardness, color, streak, luster, cleavage and chemical reaction.

A protein can alter shape in response to harsh temperatures and ph changes. It's known as denaturation.

(PROH-teen) a structure composed of amino acids. The body need proteins to operate correctly. They serve as the building blocks for several bodily components, including the skin, hair, and acids, cytokines, and antibodies.

Protein is present in every human cell. The core component of proteins is an amino acid chain. In order for your body to repair damaged cells and create new ones, you need proteins in your diet. Protein is essential for proper growth and development in children, adolescents, and expecting women.

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Answer:

a

i just had this

Answer:

A. water entering the plant. thats the one

Explanation:

Answer:

it would be ionic

copper forms a cation and oxygen forms an anion

those charges represent the e-s that are transferred during bonding

oxygen is -2 so will accept 2 e-s to achieve noble gas configuration

Explanation: