what type of bond links amino acids in the first level of protein structure?

Answer:

22.5

Explanation:

M=D*V

V=5*5*5=125

M=0.180*125= 22.5

The mass of the liquid is 22.5 g.

A cubic container has a side length (l) of 5.00 cm. We can find the volume of the cube occupied by the liquid using the following expression.

\(V = l^{3} =(5.00cm)^{3} =125 cm^{3}\)

We have 125 cm³ of a liquid with a density of 0.180 g/cm³. The mass of the liquid is:

\(125 cm^{3} \times \frac{0.180g}{cm^{3} } = 22.5 g\)

The mass of the liquid is 22.5 g.

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At -40°C temperature the Fahrenheit equal to centigrade. They are equal at  the temperature of -40 °C and -40 °F.

Temperature is defined as the degree of hotness or coldness measured by a thermometer with a numerical scale. There are three types of temperature scale  those are Celsius, Fahrenheit and Kelvin. The Fahrenheit scale is known as a temperature scale based on one proposed in 1724 by the physicist Daniel Gabriel Fahrenheit. This scale uses the degree Fahrenheit as the unit. The degree Celsius is defined as  the unit of temperature on the Celsius scale that one of two temperature scales used in the International System of Units and the other being the Kelvin scale. Temperature is defined as a physical quantity that expresses quantitatively the perceptions of hotness and coldness. It is measured with a thermometer.

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Answer: Mg + FeS ——> Fe + MgS

Explanation: Explain

Answer:

It's explained below.

Explanation:

An everyday situation is when we raise an object.

Now, when we raise an object, energy is transferred to the Earth object system and thus the gravitational field energy of the system will increase.

Now, this energy is usually released when the object falls. The mechanism of this release is known as gravitational force.

In the same manner, two magnetic and electrically charged objects that are interacting at a distance will exert forces on each other and this can lead to transfer of energy between the interacting objects.

A reaction occurs at the cathode is Option b. 2H₂O (l) + 2e⁻ → H₂ (g) + 2OH⁻ (aq)

At the cathode, reduction occurs, which involves the gain of electrons. In this case, water molecules (H₂O) are reduced to produce hydrogen gas (H₂) and hydroxide ions (OH⁻).

The half-reaction at the cathode can be understood as follows:

2H₂O (l) + 2e⁻ → H₂ (g) + 2OH⁻ (aq)

Here, two electrons (2e⁻) are gained by two water molecules, resulting in the formation of hydrogen gas (H₂) and hydroxide ions (OH⁻) in the aqueous solution. Therefore, the correct option for the reaction occurring at the cathode in the given electrolytic cell is 2H₂O (l) + 2e⁻ → H₂ (g) + 2OH⁻ (aq). Therefore, Option b is correct.

The question was incomplete. find the full content below:

A reaction in an electrolytic cell is as follows:

2NaCl(aq) + 2H₂O (1)→ Cl₂ (g) + H₂ (g) + 2NaOH(aq).

Which reaction occurs at the cathode?

a. Cl₂ (g) + 2e → 2Cl(aq)

b. 2H₂O (1) + 2e → H₂ (g) + 2OH(aq)

c. H₂(g) + 2OH(aq) → 2H₂O (1) + 2e¯

d. 2C1 (aq) → Cl2 (g) + 2e7

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As you progress down a group, the first ionization energy normally drops. This is because the outermost electron is typically held less securely and can be removed with less energy because it is farther away from the nucleus.

The electronegativity of a group diminishes from top to bottom. This is due to the fact that as atomic number decreases within a group, the atomic radius—the separation between the valence electrons and nucleus—increases.

First ionization energy normally rises from left to right across a period on the periodic table. This is because.

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Typically, the initial ionization energy decreases as you move along a group. This is because the outermost electron is typically held less securely and can be removed with less energy because it is farther away from the nucleus.

A group's electronegativity decreases at top to bottom. This is because the atomic radius—the distance in between outer electrons and nucleus—increases as atomic number within a group decreases.

On the periodic table, the first ionization energy typically climbs across a period from left to right.

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Answer:

64

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The approximate probability of finding Elecpatra in the mid-region between x = 3L/8 and x = 5L/8 is 0.250.

To calculate the probability of finding Elecpatra in the mid-region between x = 3L/8 and x = 5L/8, we need to determine the probability amplitude associated with that region.

The probability amplitude can be found by examining the wave function of Elecpatra in the 4th excited state of the 1D infinite well.

In the 1D infinite well, the wave function for the nth excited state can be expressed as:

ψ(x) = sqrt(2/L) * sin((n * π * x) / L)

Since Elecpatra is in the 4th excited state, n = 4. We can now substitute the values into the wave function:

ψ(x) = sqrt(2/L) * sin((4 * π * x) / L)

To find the probability amplitude for the mid-region between x = 3L/8 and x = 5L/8, we integrate the absolute square of the wave function over that region. The probability amplitude is the square root of the result.

P = Integral [3L/8 to 5L/8] |ψ(x)|^2 dx)

Calculating the integral and simplifying the expression, we find:

P = sqrt(2/π)

Approximating π as 3.14, we can evaluate the expression:

P ≈ sqrt(2/3.14)

P ≈ 0.250

Therefore, the approximate probability of finding Elecpatra in the mid-region between x = 3L/8 and x = 5L/8 is 0.250.

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Answer:

if im not mistaken that's a jetstream

A value of k near 1 indicates that at equilibrium, significant quantities of both products and reactants are present.

The equilibrium constant, k, is a measure of the ratio of the concentrations of the products to the reactants at equilibrium. When the value of k is close to 1, it means that the concentrations of the products and reactants are roughly equal, and therefore significant quantities of both are present. This also indicates that the forward and reverse reactions occur at a moderate rate, neither too fast nor too slow. Therefore, it is unlikely that only reactants or only products are present at equilibrium.

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Organic fertilizers are made from mined rock minerals, and natural plant and animal materials. They include ingredients like manure, guano, dried and powdered blood, ground bone, crushed shells, finely pulverized fish, phosphate rock, and wood.

Inorganic fertilizer is synthetic, comprised of minerals and synthetic chemicals. Most of the minerals in inorganic fertilizer are mined from the earth, and balanced inorganic fertilizers are high in all three macronutrients and can contain ammonium sulfate, magnesium sulfate, and potassium chloride.

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Answer:

C. Atomic mass

Explanation:

i just did the quiz and got 100 :) i hope I get brainiest answer

Answer:

The velocity of the bb when it reaches a height of 203 m can be determined using the laws of projectile motion. Since the bb is moving vertically upwards, its velocity at that height will be zero.

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Answer: v = 83.96 m/s

Assuming the acceleration due to gravity is approximately 9.8 m/s^2, we can use the principles of projectile motion and energy conservation.

Using the equation for the vertical displacement of an object in free fall:

Δy = (v₀² - v²) / (2g)

Δy = vertical displacement (203m)

v₀ = initial velocity (105 m/s)

v = final velocity (not known yet)

g = accerlation due to gravity (9.8 m/s^2)

Lets rearrange the equation to solve for the final velocity:

v = v = √(v₀² - 2gΔy)

Substituting the given values:

v = √(105² - 2 * 9.8 * 203)

v ≈ √(11025 - 3979.6)

v ≈ √(7054.4)

v ≈ 83.96 m/s

Therefore, when the BB pellet is at the height of 203m, its velocity will be approximately 83.96 m/s.

The pressure in the tank is 31.5 atm.

We  use the Ideal Gas Law equation (PV=nRT) to solve for the pressure in the tank. We know the volume (25.0 L), the number of moles of hydrogen (12.0 mol) and nitrogen (4.0 mol), and the temperature (298 K). We  assume that the gases behave ideally, meaning that there is no intermolecular attraction between the gas molecules and that the volume of the gas molecules is negligible compared to the volume of the container.

To find the pressure, we need to solve for P. We can rearrange the Ideal Gas Law equation to solve for P:

P = (nRT)/V

where P is the pressure, n is the number of moles, R is the gas constant (0.08206 L·atm/mol·K), T is the temperature in Kelvin, and V is the volume.

Plugging in the given values, we get:

P = ((12.0 + 4.0) mol)(0.08206 L·atm/mol·K)(298 K)/(25.0 L) = 31.5 atm

Therefore, the pressure in the tank is 31.5 atm.

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(c) is more soluble at higher because lower concentrations of shift the solubility equilibrium toward and.

The solubility of a substance refers to the amount of that substance that can dissolve in a given amount of solvent at a given temperature and pressure. In this situation, the student is placing a certain mass into different solutions with specific values, and then measures the concentration of ions in each solution after equilibrium is reached.

Based on the data in the table, it can be concluded that:

In summary, the solubility of is more at higher because lower concentrations of shift the solubility equilibrium towards and. It means as the concentration of ions decreases, the solubility of the substance increases.

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The reaction between \(I_{2}\) (iodine) and Zn (zinc) is a redox reaction.

This is because the reaction involves a transfer of electrons from one substance to another. Zinc is a reducing agent, meaning it loses electrons during the reaction, while iodine is an oxidizing agent, meaning it gains electrons.

During the reaction, zinc atoms lose electrons to form \(Zn^{2+}\) ions, while iodine molecules gain electrons to form \(I^{-}\) ions. The zinc atoms that lose electrons are said to be oxidized, while the iodine molecules that gain electrons are said to be reduced. This is where the term "redox" comes from.

The reaction between iodine and zinc can be represented by the following equation:

Zn + \(I_{2}\) → \(ZnI_{2}\)

This equation shows that one zinc atom reacts with one iodine molecule to form one molecule of zinc iodide. The reaction is exothermic, meaning it releases heat as the reaction proceeds.

Overall, the reaction between iodine and zinc is an example of a redox reaction, where electrons are transferred between substances. The reaction produces zinc iodide, which is a white crystalline solid that is often used in the manufacturing of dyes, pharmaceuticals, and other chemical compounds.

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The reaction between iodine and zinc is a redox, single-replacement reaction. Zinc displaces iodine and gets oxidized, thereby reducing iodine. The resultant product is zinc iodide (ZnI2).

The reaction between iodine (I2) and zinc (Zn) is a type of redox reaction, specifically, a single-replacement reaction. In this reaction, Zinc, a more reactive metal, displaces the iodine, thereby reducing the iodine and undergoing oxidation itself. The chemical equation for this reaction is Zn + I2 → ZnI2.

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The metallic cu⁺ will not be formed to calculate percentage recovery.

What is percentage recovery?

Most commonly "percent recovery" in chemistry refers to the quantity of recovered substance following a purifying procedure. This purification procedure could involve anything from completely separating a particular ingredient to removing a molecule totally.

If we do not completely react the HNO₃ in the reacion mixture, it will not fully reduce Cu ions which will not form all the metallic copper or if at all its formed the quantity will be very low that we will use to calculate the percentage recovey at the end.

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1.63×10^-18J is the energy for the transition of an electron from the level n=1 to the level  n= 2 of a hydrogen atom.

According to the Bohr equation for hydrogen atom,

Energy, ∆E= -RH[(1/nf2 ) - (1/ni2)]

Where RH is the Rydberg constant and its value is 109737.3cm-1, 'nf' and 'ni' are integers that represent the energy levels.

1). ni= 1 and nf= 2, substituting these values in Bohr equation,

∆E = -109737.3cm-1[(1/22). -(1/12)

= -109737.3cm-1[(1/4) -1]

= -109737.3cm-1[0.25-1]

= -109737.3cm-1(-0.75)

= 82302.975cm-1

=82302.975×1.986×10-23J

=1.63×10-18J

(where 1 cm-1= 1.986×10-23J)

Here the electron jumps from n=1 to n=2, so it must absorb a photon of light. Therefore this is an absorption process.

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The grams of sucrose is 0 g calculated by determining the molality of the solution.

To calculate the grams of sucrose, we first need to find the moles of sucrose. The molality of the solution can be found using the formula:

molality = (Kf value) x (temperature change).

In this case, the temperature change is 0 °C, so the molality is 0.

To find the moles of sucrose, we use the formula:

moles of solute = (molality) x (kg of solvent).

Since water is the solvent and its mass is not given, we can assume it to be 1 kg for simplicity.

Therefore, moles of sucrose = 0 x 1 = 0.

Finally, we can convert moles to grams using the molar mass of sucrose, which is 342.3 g/mol.

Thus, the grams of sucrose is 0 g.

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Answer: the answer is A or Tributaries, River system and rivers

Explanation: Its A i had the same question last year for my 10th grade assignment

Answer:

(CH3COO)2 + redP + Cl2 → ClCH2COOH + HCl

Explanation:

This is an example of halogenation of carboxylic acids at alpha carbon atom. In this reaction, red phosphorus and chlorine are treated with carboxylic acids having alpha hydrogen atom followed by hydrolysis to form alpha chloro carboxylic acid.

Answer:

no of moles = mass / molar mass

so if mass is a constant.

there is indirect relation between no of moles and moler mass

by Inc. molar mass....... no of moles Dec.

and vice versa

Answer:

b

Explanation:

the plates crash into each other and form a mountain yea that's it

The balanced equation is: M.O.' + a MAC → b M.AC +  \(cH_2O\). M.O.' is being reduced, and a MAC is being oxidized.

In the given equation, M.O.' and a MAC react in an acidic solution to form b M.AC and \(c H_2O\). To balance the equation, we need to equalize the number of atoms on both sides and ensure that the charges are balanced.

To balance the equation using the half-reaction method, we start by identifying the oxidized and reduced species. The species that loses electrons is oxidized, while the species that gains electrons is reduced. In this case, M.O.' is being reduced because it is gaining electrons, and a MAC is being oxidized as it loses electrons.

Next, we balance the equation by separating the oxidation and reduction half-reactions. We balance the atoms, first considering those involved in the redox process. Then, we balance the charges by adding electrons to the side that needs them.

After balancing the atoms and charges, we can combine the half-reactions to obtain the balanced overall equation. The coefficients a, b, and c in the equation represent the stoichiometric coefficients needed to balance the number of molecules or ions involved in the reaction.

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Answer:

candles

Explanation:

if u burn these fruits, it is obvious that there will be ashes but the key hint here is

" retaining the smell"

and what are things that smell and can be fruit scented?

a..... CANDLE

hope this helped :D

Answer:

BY BURNING A CANDLE WITH ITS SCENT

Explanation:

3.75 milligrams of Erioglaucine are required to make 150. mL of blue dye with a concentration of 25.0 mg/L

HOW TO CALCULATE MASS:

According to this question;

Mass = 0.150L × 25mg/L

Mass = 3.75mg

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Several units of pH should be reduced.

go beyond the buffer's limit.

In the food, textile, metal, and rubber sectors, hydrochloric acid (HCl) is frequently used to neutralise alkaline chemicals and as a bleaching agent. If discharged into the soil, it is neutralised, and water exposure causes it to hydrolyze quickly.

Raise the pH a little bit.

Reduce the pH a little.

Increase the pH by a few units.

Decrease the pH by a few units.

Do not alter the pH

Exceed the buffer's maximum size

Hydrochloric  acid is created when potassium fluoride and hydrofluoric acid interact. The total of the HFO generated and the KFO consumed equals the amount of HCl supplied. All of the KFO is consumed, exceeding the buffer's capacity and reducing pH by several units, because moles of HCl > moles of KFO.

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