poin
A gaseous mixture contains He that exerts a pressure of 2 atm, Ne that exerts a pressure of 1.25 atm, and Ar that exerts
a pressure of 1.5 atm. At constant temperature What is the total pressure of the gas mixture?
1.50 atm
3.00 atm
Not enough information
4.75 atm

It is anticipated that the N—O bonds in NO3- will be weaker than those in NO⁺. This is due to the fact that NO³⁻ possesses three comparable N—O bonds, and the ion's negative charge renders the bonds more prone to dissociation.

The electrons in the N—O bonds are more dispersed due to the negative charge on the NO³⁻ ion, which causes a lower bond order and a weaker bond. In contrast, NO⁺ possesses a single N—O bond that is strengthened by the ion's positive charge, which pulls electrons towards the N atom. A greater bond order and a stronger N—O bond result from the N atom's increased electron density in NO⁺.

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Answer:

that it i think

Explanation:

the earth revolves around the Sun once each year and spins on its axis of rotation once each day. This axis of rotation is tilted 23.5 degrees relative to its plane of orbit around the Sun. The axis of rotation is pointed toward Polaris the North Star. As the Earth orbits the Sun the tilt of Earth’s axis stays lined up with the North Star.

Answer:

A There are the same number of atoms of oxygen and hydrogen in the reactants as there are in the products.

Explanation:

Matter is conserved in a chemical equation if there are no loss of atoms. That means, total number of atoms of elements must be the same as the total number of element on the product side. The correct option is;

A. There are the same number of atoms of oxygen and hydrogen in the reactants as there are in the products.

Answer:

its A. i just did dat

The binding of the amino acid in aminoacyl-tRNA involves the formation of an ester bond.  Option b

Aminoacyl-tRNA is a complex molecule that plays a crucial role in protein synthesis. It consists of a tRNA molecule covalently linked to an amino acid. The amino acid is attached to the 3' end of the tRNA molecule through an ester bond.

An ester bond is formed between the carboxyl group (-COOH) of the amino acid and the hydroxyl group (-OH) of the ribose sugar at the 3' end of the tRNA molecule. This ester bond is also referred to as an ester linkage. The formation of the ester bond is catalyzed by the enzyme aminoacyl-tRNA synthetase.

The ester bond in aminoacyl-tRNA is essential for protein synthesis. During translation, the aminoacyl-tRNA molecule carries the specific amino acid to the ribosome, where it is incorporated into the growing polypeptide chain. The ester bond is later hydrolyzed, releasing the amino acid for further use in protein synthesis.

In summary, the binding of the amino acid in aminoacyl-tRNA involves the formation of an ester bond between the carboxyl group of the amino acid and the hydroxyl group of the ribose sugar in the tRNA molecule.

Option b

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I'd schedule the picnic a bit earlier than originally planed. I'd do this because everyone can be home by the time the rain starts.

If you don't want to do that do /weather clear and no more rain.

Answer:

The final volume will be  44.69 L

Initial volume V₁ = 106.0 L

Initial pressure P₁ = 740.0 mm of Hg

Initial temperature T₁ = 45.0⁰C

Final pressure P₂ = 780.0 mm of Hg

Final temperature T₂ = 20.0⁰C

It is required to calculate the final volume V₂

At equilibrium, the concentrations of A, B, and C are 0.112 M, 0.212 M, and 0.188 M, respectively.

The standard free-energy change (ΔG°) of reaction is -3.06 kJ/mol, which can be related to equilibrium constant (K) using following equation:

ΔG° = -RTlnK

where R is gas constant (8.314 J/mol·K),

T is temperature in Kelvin (25°C = 298 K), and

ln is natural logarithm.

-3.06 kJ/mol = -8.314 J/mol·K x 298 K x lnK

Solving for lnK:

lnK = -3.06 kJ/mol / (-8.314 J/mol·K x 298 K) = 0.447

Taking, antilogarithm of both sides to solve for K:

K = e^0.447 = 1.563

At equilibrium, concentrations of A, B, and C can be calculated using stoichiometry of the reaction and equilibrium constant expression:

K = [C] / ([A] x [B])

1.563 = [C] / (0.30 M x 0.40 M)

[C] = 0.188 M

Since, stoichiometry of reaction is 1:1:1, [A] and [B] at equilibrium will be:

[A] = [A]0 - [C] = 0.30 M - 0.188 M = 0.112 M

[B] = [B]0 - [C] = 0.40 M - 0.188 M = 0.212 M

Therefore, at equilibrium, the concentrations of A, B, and C are 0.112 M, 0.212 M, and 0.188 M, respectively.

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The improved telescope showed scientists that the solar system contained comets.

The solar system has to do with the arrangement of the sun and the planets. The sun lies at the center of the solar system and then the sun is surrounded by the planets that move all around the sun in concentric circles.

Now we know that the telescope is the kind of object that could be used in the study of the outer space. We could use it to study the stars as well as other celestial bodies in the study of astronomy.

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The molecular formula of the compound is C8H16O4.

To determine the molecular formula of a compound, you need to use the empirical formula and the molecular weight. The empirical formula, CH4O, gives the ratio of the elements in the compound. The molecular weight, 160, gives the actual mass of the compound.
To find the molecular formula, you need to determine the factor by which the empirical formula needs to be multiplied in order to get the molecular weight. In this case, the empirical formula has a weight of 12 + (4 x 1) + 16 = 32. The factor is 160/32 = 5.
Therefore, the molecular formula is the empirical formula multiplied by the factor:
C8H16O4 = (CH4O) x 5
So the molecular formula of the compound is C8H16O4.

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Answer: D). the likelihood of an atom to gain an electron from another atom during bonding​

Explanation: The tendency of an atom in a molecule to attract the shared pair of electrons towards itself is known as electronegativity.

Answer:

the answer is A

Explanation:

Forces are the intermolecular interaction between the matter. Forces present in a solid are strongest. Thus, option A is correct.

The matter is any substance that occupies a volume. Matter can be a solid, gas, or liquid. The solid phase particles are tightly closed to each other making the force strong.

The particles of liquids that are not too compact are a little free and in gases, the particles are very free, which makes the bonding and the force the weakest.

Therefore, option A. the solids have the strongest intermolecular bonding.

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Answer:

Explanation:

uestion

If an atom of an element has a mass number of 45 and it has 20 neutrons in its nucleus, what is the atomic number of the

element?

Answer:

Ionic bonds are a class of chemical bonds that result from the exchange of one or more valence electrons from one atom, typically a metal, to another, typically a nonmetal. This electron exchange results in an electrostatic attraction between the two atoms called an ionic bond.

Explanation:

Answer:

The electrons are transferred from one atom to another. The atom that loses electrons becomes positive.

Explanation:

I don't really understand what form of an answer you need but I hope this helps?

Answer:3.381 X 10^(-11)

Explanation:

The formula for buoyant force is F = -Volume*density*gravitational acceleration. Convert volume and density to SI units and then apply them in the formula where gravitational acceleration is 9.8m/s^2. Done

Additive is the  type of combination of two chemicals produces an effect that is equal to their individual effects taken together. Thus, option (A) is correct.

As the baseline effect in approaches assessing whether medications have a synergistic impact, the additive effect can be utilized to identify synergy. A synergistic effect is comparable to an additive effect in that it has a bigger combined effect than the additive effect.

When two medications are combined, it can generate a 2+2 > 4 effect. Although the synergistic impact is more prevalent, the additive effect may be detected in the majority of combination medicines. If the combined impact of two pharmaceuticals in combination treatment is less than the total of the effects of the two drugs working separately, this is referred to as an antagonistic effect, and the drugs are rarely prescribed together in the same therapy.

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a. Change in temperature is -10.0 C b. Unknown substance is likely granite.

a. To calculate the specific heat of the sample, we can use the formula Q = mCΔT, where Q is the energy released, m is the mass of the substance, C is the specific heat, and ΔT is the change in temperature.

First, we need to calculate ΔT: ΔT = final temperature - initial temperature = 80.0°C - 90.0°C = -10.0°C

Next, we plug in the values: 963.6 J = 120.0 g x C x (-10.0°C)

Solving for C, we get C = 0.802 J/g°C.

b. To identify the substance, we can compare the specific heat we calculated (0.802 J/g°C) to the specific heats listed for the different substances. The closest match is granite, which has a specific heat of 0.803 J/g°C. Therefore, the unknown substance is likely granite.

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Answer:

I THINK expose all six plants to green light

Explanation:

Reflecting telescopes are preferred for scientific research because they are better suited for gathering large amounts of light and producing high-quality images. However, refracting telescopes are still popular for amateur astronomers and for viewing objects on Earth.

Reflecting telescopes are different from refracting telescopes because reflecting telescopes use mirrors, whereas refracting telescopes use lenses. The reflecting telescope was invented in 1668 by Sir Isaac Newton, and it has since become one of the most popular types of telescopes.
Reflecting telescopes use a mirror to gather and focus light, while refracting telescopes use a lens to do the same thing. Reflecting telescopes can be made much larger than refracting telescopes because it is easier to make large mirrors than it is to make large lenses. The mirror in a reflecting telescope is placed at the back of the telescope, and it gathers and reflects light back to a secondary mirror, which then reflects the light to the eyepiece. The eyepiece is where the observer looks through the telescope.In contrast, the lens in a refracting telescope is placed at the front of the telescope, and it gathers and bends light as it passes through. The lens focuses the light onto an eyepiece at the back of the telescope. Refracting telescopes are generally smaller than reflecting telescopes because of the difficulty of making large lenses.
Another difference between reflecting and refracting telescopes is the way they are constructed. Reflecting telescopes have a simple tube that houses the mirrors and eyepiece, while refracting telescopes have a more complex design with a long tube that contains the lens and eyepiece.

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The boiling point of a solution is dependent on the concentration of solute present in the solution. When a solute is dissolved in a solvent, the boiling point of the resulting solution will be higher than that of the pure solvent. This is known as boiling point elevation.

The boiling point of a solution is given by the formula:

ΔTb = Kb * m * i,

where ΔTb is the boiling point elevation, Kb is the molal boiling point elevation constant, m is the molality of the solution, and i is the Van't Hoff factor.

Let's calculate the boiling point elevation for each of the given solutions and see which has the highest value:

a. 0.20 m NaClΔTb = Kb * m * iΔTb = 0.512 °C/m * 0.20 m * 2 = 0.2048 °C/m = 0.20 °C

b. 0.10 m CaCl2ΔTb = Kb * m * iΔTb = 0.512 °C/m * 0.10 m * 3 = 0.1536 °C/m = 0.15 °C

c. 0.50 m CH3OHΔTb = Kb * m * iΔTb = 0.512 °C/m * 0.50 m * 1 = 0.256 °C/m = 0.26 °C

d. 0.30 m CaCl2ΔTb = Kb * m * iΔTb = 0.512 °C/m * 0.30 m * 3 = 0.2304 °C/m = 0.23 °C

e. 0.10 m CH3COCH3ΔTb = Kb * m * iΔTb = 0.512 °C/m * 0.10 m * 1 = 0.0512 °C/m = 0.05 °C

Hence, we can see, option (c) has the highest value for boiling point elevation, and therefore, it would have the highest value for boiling point. Hence, the answer is option c.

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The idea of the atomic nature of matter was first developed by John Dalton.

He introduced the atomic theory, which proposed that matter was made up of tiny, indivisible particles called atoms. This theory was based on his observations and experiments on the behavior of gases

.Dalton's atomic theory had several postulates that helped explain the properties of matter. These postulates were:

All matter is made up of atoms, which are tiny, indivisible particles

.Each element is composed of atoms that are identical in size, shape, and chemical properties.

Atoms of different elements have different sizes, shapes, and chemical properties.

Atoms combine in fixed ratios to form compounds, and the ratios of their masses are related by whole numbers.

Atoms are indestructible and cannot be created or destroyed in chemical reactions

.However, Dalton's atomic theory was later modified and expanded upon by other scientists, including J.J. Thomson, Ernest Rutherford, and Niels Bohr, as new discoveries about the structure and behavior of atoms were made.

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When sodium acetate is dissolved in water, it is hydrolyzed into ions.

When a salt of weak acid or base is dissolved in water, this salt hydrolysis in it. Water ionises into hydroxide and hydrogen due to addition of sodium acetate. In water, sodium acetate splits into sodium and acetate ions.

So we can conclude that when sodium acetate is dissolved in water, it is hydrolyzed into ions.

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Answer:

The process or effect of simplifying a single chemical entity into two or more fragments.

Explanation:

Chemical decomposition, or chemical breakdown, is the process or effect of simplifying a single chemical entity into two or more fragments. Chemical decomposition is usually regarded and defined as the exact opposite of chemical synthesis.

Answer:

What are some examples of decomposition reactions?

Production of calcium oxide or quicklime.

Production of lithium oxide.

Preparation of oxygen and carbon dioxide.

In metallurgy, for the extraction of metals from their oxides and chlorides through electrolytic decomposition.

Answer: 2,3 and 5

Explanation:

Answer:

B. Less humidity

C. No precipitation

E. Cooler temperatures

( Hope this helps ) <3    ( Give person above brainliest )

The sun has more thermal energy than the bath tub full of hot water, because the sun has more heat than the bathe tub full of hot water.

The energy present in a system that determines its temperature is referred to as thermal energy. Thermal energy flows as heat. Thermodynamics is a whole field of physics that studies how heat is transmitted across various systems and how work is performed in the process.

The object with the higher temperature has more thermal energy with two things have the same mass. A thermometer is used to determine temperature. Heat is the thermal energy that is transferred between things when their temperatures differ.

Undoubtedly, a colder item can possess more thermal energy than a warmer one. Here's one illustration, Thermal energy will be far more in a bathtub full of 100°F water than in a thimble full of 110°F water.

Thus, The sun has more thermal energy than the bath tub full of hot water.

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Answer:

Animals, plants, fungi, bacteria, protists, etc.

Explanation:

Biotic means they are alive.

Answer:

Simple distillation is a method for separating the solvent from a solution.

Explanation:

For example, water can be separated from salt solution by simple distillation. This method works because water has a much lower boiling point than salt. When the solution is heated, the water evaporates.

Answer:

Stealing the last of your points on questions, it's been fun and I will most likely do it more in the future but for now this is the end. Thank you for the many points friend.

Explanation:

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Answer:

Have you gotten your answer yet?

The average atomic mass of element X is 85.26 amu.

To calculate the average atomic mass of Element X, we need to take into account the abundance of each isotope and its respective atomic mass.

First, let's assign variables to the abundance and atomic mass of each isotope:

- Isotope 1: abundance = 82.15%, atomic mass = 84.9118 amu

- Isotope 2: abundance = 17.85%, atomic mass = 86.9092 amu

To calculate the average atomic mass, we can use the following formula:

average atomic mass = (abundance₁ ×atomic mass₁) + (abundance₂ ×atomic mass₂)

Substituting the values:

average atomic mass =

\(\dfrac{82.15\times84.9118}{100}+\dfrac{17.85\times86.9092}{100}\\=85.26 \ \rm{amu}\)

Thus, average atomic mass of element X is 85.26 amu.

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Molecules which increase neurotransmitter formation and release are termed as calcium.

The release of neurotransmitter molecules is triggered by an increase in calcium. When a neuron becomes depolarized and reaches a threshold, it sends an electrical signal called the action potential down the axon. When the action potential reaches the terminal, voltage gated calcium channels open. This causes an influx of calcium, which binds to proteins and allows the fusion of neurotransmitter-filled vesicles with the membrane. This results in the release of increased level of neurotransmitter into the synapse, where it can cause changes in the postsynaptic cell.

What are Neurotransmitters?

Neurotransmitters are chemicals that neurons release in order to communicate with other neurons or effector tissues such as muscle. There are various types of neurotransmitters, each with a unique effect on the postsynaptic cell.

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