What atomic or hybrid orbitals make up the sigma bond between C_1 and O_1 in acetic acid, CH3COOH?
What is the approximate C_2-C_1-O_1 bond angle?

Answer:

The correct answers are

Particles are dissolved

and light beam passes through invisibility

Explanation:

Odyssey

Answer:

B³+

Explanation:

In the compound, boron shows an oxidation state of +3. The first three ionization energies of boron, however, are much too high to allow formation of compounds containing the B³+ ion

The free energy of the water is obtained as 90.7 kJ/mol. Option D

We have to note that the Hess law of the constant heat summation is the law that we can be able to use in this case so as to be able to obtain the standard free energy of the formation of the water.

We have to keep in mind that the standard free energy of the reaction can be obtained by;

Standard free energy of reaction = Standard free energy of product - Standard free energy of the reactants

Thus;

Let the standard free energy of water be X

-957.9  = [4( 86.71 ) + 6X] - [4(-16.66) + 5(0)]

957.9  =  (346.84 + 6X) - (-66.64)

957.9  = 280.2 + 6X

X =  90.7 kJ/mol

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Answer:

Average atomic mass of E = 103.57 amu

Explanation:

Given data:

Average atomic mass of E = ?

Abundance of E-102.658 = 56.67%

Abundance of E-104.770 = 43.33%

Solution:

Average atomic mass of E = (abundance of 1st isotope × its atomic mass) +(abundance of 2nd isotope × its atomic mass)  / 100

Average atomic mass of E = (56.67×102.658)+(43.33×104.770) /100

Average atomic mass of E =  5817.63 + 4539.68 / 100

Average atomic mass of E = 10357.31 / 100

Average atomic mass of E = 103.57 amu.

A first-order reaction refers to a reaction in which the rate of the reaction is directly proportional to the concentration of a single reactant raised to the first power and is expressed as it would take approximately 46.4 minutes for the 80% completion of this first-order reaction to occur. 46.4 minutes.

Rate = k[A]

In this equation, k is the reaction rate constant, and [A] represents the concentration of reactant A.

The half-life of a reaction of the first order completes in 10 minutes. We need to find out how much time will be needed for the 80% completion of this reaction.

To solve for the time needed for 80% completion of a reaction of the first order, we need to use the formula:

Time for 80% completion = 2.303/k x log ([A]₀/[A]t)

where k is the reaction rate constant, [A]₀ is the initial concentration of the reactant and [A]t is the concentration of the reactant after the given time t, and 2.303 is a conversion factor.

Let [A]₀ = 1 and [A]t = 0.2 (since 80% completion means 20% of the original concentration remains)

We know that, t1/2 = 10 min;

therefore, k = 0.693/t1/2

= 0.693/10

= 0.0693 (as 0.693 = ln2)Now,

Time for 80% completion

= 2.303/k x log ([A]₀/[A]t)

= 2.303/0.0693 x log(1/0.2)

= 46.4 minutes

Therefore, it would take approximately 46.4 minutes for the 80% completion of this first-order reaction to occur. 46.4 minutes.

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Answer:

electrical conduction

Explanation:

The balanced reaction of this chemical reaction is as follows :

• As we can see, this is a double-displament reaction

Answer:

Electrophoresis could be inaccurate or unreliable

Explanation:

If the DNA samples were transferred to the wrong well of the gel plate, the results of the gel electrophoresis could be inaccurate or unreliable. This is because the position of the DNA samples on the gel is critical for accurate separation and analysis of the DNA fragments. If the DNA samples were transferred to the wrong well, they may not be properly separated or identified, which could lead to incorrect conclusions about the DNA samples. Additionally, if the samples were mislabeled, the researchers could misinterpret the results, which could also lead to incorrect conclusions about the DNA samples. Therefore, it is important to carefully label and transfer DNA samples to the correct wells on the gel plate to ensure accurate and reliable results.

note: ask to biology next time sir

ALLEN

when the temperature is raised to 325 K and the volume is increased to 1.8 L, the gas will occupy a pressure of approximately 1.08 atm.

To solve this problem, we can use the combined gas law equation, which relates the initial and final conditions of a gas when the amount of gas remains constant.

The combined gas law equation is given as:

(P₁ * V₁) / T₁ = (P₂ * V₂) / T₂

where P₁, V₁, and T₁ represent the initial pressure, volume, and temperature, respectively, and P₂, V₂, and T₂ represent the final pressure, volume, and temperature, respectively.

Given

Initial pressure (P₁) = 1.2 atm

Initial volume (V₁) = 0.9 L

Initial temperature (T₁) = 273 K

Final volume (V₂) = 1.8 L

Final temperature (T₂) = 325 K

We need to find the final pressure (P₂).

Substituting the given values into the combined gas law equation, we have:

(1.2 atm * 0.9 L) / 273 K = (P₂ * 1.8 L) / 325 K

Now, we can solve for P₂:

P₂ = (1.2 atm * 0.9 L * 325 K) / (273 K * 1.8 L)

= 1.08 atm

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It is dangerous to mix chlorine and vinegar together as cleaner because that would produce a large amount of chlorine gas by shifting the equilibrium to the left.

As per the Le Chatelier's principle, if the equilibrium of a reaction is disturbed by changing any property of the reaction, then the reaction will automatically shift in that direction which would compensate the effect of the change in property, in order to establish the equilibrium again.

In the reaction,

Cl₂(g) + 2NaOH(aq) ⇄ NaOCl(aq) + NaCl(aq) + H₂O(l)

Currently this reaction is in equilibrium, but if the concentration of any of the product is added in the system, the equilibrium will be disturbed, to established the equilibrium again, the the reaction will shift towards left and more and more amount of reactant will be formed, and more and more chlorine gas will be formed which is toxic.

Now to the doubt asked in the question,

If vinegar is added to the system, the amount of NaOH will be consumed which will decrease the concentration of NaOH and the concertation of water will increase because of acid water neutralization reaction.

The increased amount of water and the decreased amount of NaOH will heavily shift the equilibrium to the Left which is again producing chlorine gas which is not good.

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Answer: Atoms contain tiny, negatively charged electrons

Explanation: Thomson's experiments with cathode ray tubes helped him to discover the electron (which Dalton did not know about). Dalton thought that atoms were indivisible particles, and Thomson's discovery of the electron proved the existence of subatomic particles.

Answer:

Hey! I`m In K12. Currently in 7th, going into 8th next year. I have Mrs. Keefe and one of my teachers, what about y`all?

Answer:

152g

Explanation:

The compound given here is iron sulfate and it is represented as;

               FeSO₄

The relative formula mass of the compound is determine by the addition of its component atomic masses and them expressed in grams

Atomic mass of Fe = 55.845

                           S = 32.065

                           O = 15.994

So;

Relative formula mass  = 55.845 + 32.065 + 4(15.994)  = 151.886g

Therefore, solution is 152g

Answer: 152

Explanation:

In the course of chemiosmosis, hydrogen ions build up in the mitochondrion's intramembrane space to produce a significant electrochemical gradient for aerobic cellular respiration.

Protons are pumped through specialized channels in the mitochondrial membranes from the inner to the outer compartment during chemiosmosis. A gradient of proton (H+) is created by the pumping. Protons diffuse through a transport protein called ATP synthase to diffuse down the gradient once it has been formed.

Electrons are transferred from one molecule to another in the electron transport chain, and the energy released during these electron transfers is used to create an electrochemical gradient. The energy held in the gradient is utilized in chemiosmosis to produce ATP.

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The new temperature of the gas is 115 °C

From the question given above, the following data were obtained:

The new temperature of gas can be obtained as follow:

\( \frac{P_1}{T_1} = \frac{P_2}{T_2} \\ \\ \frac{0.96}{298} = \frac{1.25}{T_2} \\ \\ cross \: multiply \\ \\ T_2 \times 0.96 = 298 \times 1.25 \\ \\ divide \: both \: side \: by \: 0.96 \\ \\T_2 = \frac{298 \times 1.25 }{0.96} \\ \\ T_2 = 388 \: K \\ \\ subtract \: 273 \: from \: 388 \: to \: express \: the \: answer \: im \: \degree \: C \\ \\ T_2 = 388 - 273 \\ \\ T_2 = 115 \: \degree \: C \)

Therefore, the new temperature is 115 °C

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The set of quantum numbers that does not contain an error is: n = 2, l = 1, ml = -1. These numbers represent the principal quantum number (n), the azimuthal quantum number (l), and the magnetic quantum number (ml) respectively.

The values given in this set are consistent with the rules governing these quantum numbers. The principal quantum number (n) determines the energy level of the electron, the azimuthal quantum number (l) specifies the shape of the orbital, and the magnetic quantum number (ml) describes the orientation of the orbital in space. Therefore, the set of quantum numbers n = 2, l = 1, ml = -1 accurately specifies an orbital.

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Among the options provided, the statement that accurately describes a type of potential energy found in a container full of a chemical substance in liquid form is: "The bonds between atoms are one place where potential energy is stored."

In a container filled with a chemical substance in liquid form, the potential energy is primarily stored in the bonds between atoms within the molecules of the substance. These bonds are formed by the sharing or transferring of electrons between atoms, creating a stable arrangement. The potential energy arises from the electrostatic interactions between the charged particles involved in these chemical bonds.When the liquid substance is in its equilibrium state, the potential energy stored in the bonds represents the energy required to break these bonds and separate the atoms, transforming the substance into a different state (such as a gas or a solid).

This potential energy is released when the substance undergoes a chemical reaction or when external forces act upon it.While other forms of potential energy can also exist in a liquid substance, such as kinetic energy due to the speed of the particles or vibrational energy of the atoms within the molecules, these are generally associated with other types of energy rather than potential energy.

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Answer:

Explanation:

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The balanced chemical equation for the reaction of solid carbon with oxygen gas to form carbon monoxide gas is  2 C + O₂\(\rightarrow\) 2 CO.

Chemical equation is a symbolic representation of a chemical reaction which is written in the form of symbols and chemical formulas.The reactants are present on the left hand side while the products are present on the right hand side.

A plus sign is present between reactants and products if they are more than one in any case and an arrow is present pointing towards the product side which indicates the direction of the reaction .There are coefficients present next to the chemical symbols and formulas .

The first chemical equation was put forth by Jean Beguin in 1615.By making use of chemical equations the direction of reaction ,state of reactants and products can be stated. In the chemical equations even the temperature to be maintained and catalyst can be mentioned.

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In the bicyclic structure of caffeine, two rings—one a six-membered ring and the other a five-membered ring—are fused together. Nitrogen, carbon, hydrogen, and oxygen are all components of the molecule.

Drinks that have had carbon dioxide added to them are referred to as carbonated beverages. Carbon dioxide lacks both flavour and colour. Carbonated beverages often start with either carbonated water or soda water, both of which qualify as carbonated beverages in and of themselves.

Six valence electrons make up an oxygen atom, of which two are required to form bonds and the remaining four are found in lone pairs. Similar to oxygen, nitrogen possesses five valence electrons, three of which are employed to form bonds while the remaining two are present as a lone pair.

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Answer:

43 protons and 99 neutrons.

Explanation:

The oxidizing agent in the reaction of alcohol dehydrogenase is NAD+..

In the alcohol dehydrogenase reaction:

CH3-CH2OH + NAD+ → CH3-CHO + NADH + H+

The oxidizing agent is the species that gains electrons and gets reduced during the reaction. In this case, it is:

b. NAD+

NAD+ gains electrons and is reduced to NADH, while ethanol (CH3-CH2OH) loses electrons and is oxidized to acetaldehyde (CH3-CHO). So, the oxidizing agent in this reaction is NAD+.

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Answer:

a) That of Al is higher than that of Mg because Mg wants to lose the second electron, so it is easier to take the second electron away

Statement which is true regarding second ionization energy is that ionization energy of of Al is higher than that of Mg because Mg wants to lose the second electron, so it is easier to take the second electron away.

Ionization energy is defined as the minimum amount of energy required to remove an electron which is loosely held in the outermost shell to form an isolated gaseous atom,ion or molecule.

It has a positive value for neutral atoms indicating that the ionization process is an endothermic process . The closer the outermost shell electrons are to the nucleus of an atom higher is it's ionization energy.It is expressed in electron volts or joules.

Ionization energy increases across period as more energy is required to remove electron from an atom as it is closely held along a period while it is decreasing down the group as on going the group the inter-nuclear distance increases and as a result less energy is required to remove an electron.

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Considering the freezing point of t-butyl alcohol, one would expect it to be a liquid in the summer and a solid in the winter when stored in a building where attempts are made to save electricity by not over controlling the climate.

T-butyl alcohol, also known as tert-butanol, has a freezing point of around 25 degrees Celsius (77 degrees Fahrenheit). In the summer, when temperatures rise above this point, t-butyl alcohol would remain in its liquid state. The higher ambient temperatures would prevent the alcohol from solidifying. Therefore, it would be a liquid during the warmer summer months.

However, in the winter, when temperatures drop below 25 degrees Celsius, t-butyl alcohol would reach its freezing point and start to solidify. If the building where it is stored does not have controlled heating or insulation to maintain a temperature above the freezing point, the alcohol would gradually turn into a solid. This is because lower temperatures slow down the molecular movement, causing the alcohol molecules to come together and form a crystalline structure.

Therefore, when attempts are made to save electricity by not over controlling the climate in a building, t-butyl alcohol would be a liquid in the summer due to the higher temperatures and a solid in the winter as the temperatures drop below its freezing point.

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T-butyl alcohol, with a freezing point of 25.5°C, would most likely exist as a liquid during the summer months when temperatures are usually above 25.5°C and as a solid during colder winter months when temperatures are usually below 25.5°C, especially in a building where temperature control is not heavily regulated.

The freezing point of t-butyl alcohol is 25.5°C. This means that in a building where the climate isn't heavily regulated, t-butyl alcohol would exist as a liquid during the summer months when temperatures are commonly above 25.5°C. However, during the winter months when temperatures often fall below 25.5°C, t-butyl alcohol would be a solid.

In a temperature controlled environment with a set temperature, a substance will remain at that state until the temperature changes. If a substance's freezing or melting point is reached, the substance will begin to undergo a phase change. The process of melting and freezing are reciprocal and occur at equal rates in an insulated environment.

This is because energy is required to overcome the attractive forces between molecules in a solid to form a liquid, and that same energy must be removed from the liquid for freezing to take place. This phenomenon of phase change and heat transfer in relation to temperature differences is key to understanding the states of matter under different seasonal temperatures.

An atom is the smallest unit that keeps the properties of an element. An atom is composed of sub-atomic particles.

An atom is a particle of matter that especially defines a chemical element. An atom includes a central nucleus that is near one or more negatively charged electrons. The nucleus is positively charged and carries one or more relatively heavy particles known as protons and neutrons.

Atoms are very small and are made up of a few even smaller particles. The basic particles that make up an atom are electrons, protons, and neutrons. Atoms fit jointly with other atoms to make up matter.

So we can conclude that The atom is the basic building block for all matter in the universe.

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Answer:

A

Explanation:

now I'm not sure, but considering negative feedback allows the systems to self stabilize that would be the best option.

PLEASE NOTE THAT THIS IS A EDUCATED GUESS.

The density of sulfur dioxide gas at 420K and 29.9 kPa is 1.82 g/L.

To find the density of a gas, we can use the ideal gas law, which states that PV = nRT, where P is the pressure, V is the volume, n is the number of moles, R is the ideal gas constant, and T is the temperature.

To calculate the density (d), we can rearrange the ideal gas law equation as follows: d = (molar mass * P) / (R * T), where the molar mass of sulfur dioxide (SO₂) is 64.06 g/mol.

First, we convert the given pressure from kPa to Pa by multiplying by 1000: 29.9 kPa * 1000 = 29900 Pa.

Next, we substitute the values into the formula: d = (64.06 g/mol * 29900 Pa) / (8.314 J/(mol·K) * 420 K).

After performing the calculation,

Therefore, the density of sulfur dioxide gas at 420K and 29.9 kPa is approximately 1.82 g/L.

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Complete question here:

Find the density of the gas sulfur dioxide at 420K and 29.9 kPa.

2.86g/L

0.548 g/L

0.844 g/L

1.82 g/L

Answer:

cuboid has 8 vertices

clown cap has a cone shape

Explanation:

Airat 100ºF and 2 atm is passed through a shallow bed ofnaphthalene spheres ½ in. in diameter at rate of 5 ft/s, based onthe empty cross sectionof the bed.

The simplest polycyclic aromatic hydrocarbon, naphthalene is an organic chemical with the formula It is a white crystalline solid with a distinctive odor that may be detected at concentrations as low as 0.08 ppm by mass. The structure of naphthalene is a fused pair of benzene rings, making it an aromatic hydrocarbon. The primary component of conventional mothballs is what makes it most well-known.

Two distinct accounts from the early 1820s mentioned a white solid produced by the distillation of coal tar that had a strong odor. In 1821, John Kidd cited these two disclosures and went on to discuss many of the qualities and methods of manufacturing of this drug. He suggested calling it naphthaline.

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Answer:

Explanation:

The answer is B