trace directly the repeating covalently-bonded backbone atoms in the direction of the amino to carboxyl ends of a polypeptide. which atoms are found repeated in this trace?

Answer:

what kind of school u doin? lol

Answer:

Difference in temperature.

Explanation:

Conduction is the movement of heat energy through a substance or from one substance to another by direct contact of atoms and molecules. Heat moves directly from one molecule to another. The heat energy speeds up the movement of the atoms and they collide with other molecules setting them into faster motion.

the balanced equation of the reaction :NaBr + C4H9OH → C4H9Br + Na OH Sodium Bromide (NaBr) is the limiting reagent in the experiment, not 1-butanol.

The limiting reagent in the experiment between sodium bromide and 1-butanol is sodium bromide.What is a limiting reagent ?A limiting reagent is a reactant in a chemical reaction that restricts the yield of the product. It means the reaction can't go on forever because the reagents are consumed up. In general, the limiting reagent determines the amount of products that can be produced during a reaction .In the given chemical reaction between sodium bromide and 1-butanol, it is essential to know which reactant is the limiting reagent.  the balanced equation of the reaction :NaBr + C4H9OH → C4H9Br + Na OH Sodium Bromide (NaBr) is the limiting reagent in the experiment, not 1-butanol.To identify the limiting reagent, you need to know the balanced chemical equation, the amounts or concentrations of the reactants, and their stoichiometric ratios. With that information, we can compare the actual amounts of each reactant to their stoichiometric ratios to determine which one will be completely consumed and thereby limit the reaction.

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Cell's cathode is Ag⁺; standard emf is 1.24V. Increasing cathode ion concentration by a factor of 10 decreases cell voltage by 0.04V; increasing anode ion concentration by 10 increases voltage by 0.04V.

The cathode is the electrode at which reduction occurs. In this case, Ag⁺ is reduced to Ag(s) with a higher standard reduction potential than Fe²⁺. Therefore, the Ag⁺ electrode is the cathode.

The standard emf (cell potential) of the cell can be calculated by subtracting the standard reduction potential of the anode from that of the cathode:

E°cell = E°cathode - E°anode

E°cell = 0.80 V - (-0.44 V)

E°cell = 1.24 V

The Nernst equation can be used to calculate the new cell potential when the ion concentration in the cathode half-cell is increased by a factor of 10:

Ecell = E°cell - (RT/nF)ln(Q)

Q = [Ag+] / [Fe2+]

Q' = (10[Ag+]) / [Fe2+]

Ecell' = E°cell - (RT/nF)ln(Q')

Ecell' = 1.24 V - (0.0257 V/K)(298 K / 1 mol)(ln(10))

Ecell' = 1.20 V

Similarly, when the ion concentration in the anode half-cell is increased by a factor of 10:

Ecell = E°cell - (RT/nF)ln(Q)

Q = [Ag+] / [Fe2+]

Q'' = [Ag+] / (10[Fe2+])

Ecell'' = E°cell - (RT/nF)ln(Q'')

Ecell'' = 1.24 V - (0.0257 V/K)(298 K / 1 mol)(-ln(10))

Ecell'' = 1.28 V

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--The complete question is, Consider the following voltaic cell:

(a) Which electrode is the cathode?

(b) What is the standard emf generated by this cell?

(c) What is the change in the cell voltage when the ion concentrations in the cathode half-cell are increased by a factor of 10?

(d) What is the change in the cell voltage when the ion concentrations in the anode half-cell are increased by a factor of 10?--

"Hypotonic solution," refers to a solution with the highest water concentration due to its lower solute concentration compared to the other options, leading to water influx into cells.

A hypotonic solution would be most likely to have the highest water concentration. In a hypotonic solution, the solute concentration is lower than that inside the cell or compared to another solution. As a result, water tends to move into the cell or the solution to equalize the concentration.

When a cell is placed in a hypotonic solution, water molecules will move into the cell through the process of osmosis. This influx of water increases the water concentration inside the cell, leading to cell swelling or even bursting in extreme cases.

Compared to hypertonic and isotonic solutions, a hypotonic solution has a lower solute concentration, allowing for a higher concentration of water molecules. This results in a higher water concentration in the solution. It's important to note that the concept of tonicity is related to the relative solute concentrations between two solutions and their effect on cell osmosis. In this case, a hypotonic solution is characterized by a higher water concentration compared to the other options.

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The velocity of a wave refers to the speed at which the wave propagates through a medium. It is a measure of how quickly the disturbance of the wave travels from one point to another.

In the context of sound waves, the velocity of the wave depends on the properties of the medium through which it is traveling. In general, sound waves travel faster in denser mediums, such as solids, compared to less dense mediums like gases.

The relationship between frequency, wavelength, and velocity is described by the equation v = fλ, where v represents the velocity of the wave, f represents the frequency, and λ represents the wavelength.

In the given scenario, the frequency of the tuning fork is 320 hertz, which means it completes 320 oscillations or cycles per second. The wavelength of the sound produced by the tuning fork is given as 1.5 meters. By multiplying the frequency and the wavelength, we can determine the velocity of the wave.

Therefore, in this case, the velocity of the wave is calculated to be 480 meters per second. It indicates that the sound wave produced by the tuning fork is traveling through the medium at a speed of 480 meters per second.

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Answer:

question 1 =c

question 2 =a

question 3 =d

question 4 =b

Answer:

You are right it's 8.2 g

Explanation:

pls can i have brainliest?

The work performed on the surroundings by the one-mole ideal gas, which is expanded from 1.00 liter to 3.23 liters against a constant external pressure of 1.00 atm, is -225.51 J.

To calculate the work performed on the surroundings by the ideal gas, we need to use the formula:

W = -PextΔV

where W is the work done on the surroundings, Pext is the external pressure, and ΔV is the change in the volume of the gas.

In this case, we have a one-mole ideal gas that is expanded from 1.00 liter to 3.23 liters against a constant external pressure of 1.00 atm. So, the change in volume is:

ΔV = 3.23 L - 1.00 L = 2.23 L

Since the pressure is constant, we can use the given value of 1.00 atm for Pext. Therefore, the work performed on the surroundings by the ideal gas is:

W = - (1.00 atm) (2.23 L) = -2.23 atm·L

To convert this value to joules, we need to use the following conversion factor:

1 atm·L = 101.325 J

So, the work performed on the surroundings by the ideal gas is:

W = (-2.23 atm·L) (101.325 J/atm·L) = -225.51 J

The negative sign in the answer indicates that the work is performed by the gas on the surroundings, which is consistent with the fact that the gas is expanding.

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Cultivated soils tend to have lower levels of soil organic carbon than comparable soils under vegetation because of human activities.

Thus we can conclude that cultivated soils tend to have lower levels of soil organic carbon than comparable soils under vegetation

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Answer:

or ghettoise, verb. (transitive) to confine or restrict to a particular area, activity, or category.

Answer:

D

Explanation:

If the sample of magnesium used in a lab was contaminated with another metal that doesn't react with hydrochloric acid, then the results obtained in the experiment would be affected.

This is because the data collected during the experiment would reflect the reaction between hydrochloric acid and the contaminated sample instead of pure magnesium. As a result, the following changes in results might have been observed:

1. The mass of the contaminated sample would be higher than the mass of pure magnesium.

2. The rate of reaction between the contaminated sample and hydrochloric acid would be slower than the reaction between pure magnesium and hydrochloric acid.

3. The volume of hydrogen gas collected from the reaction would be lower than the volume of hydrogen gas collected in the reaction between pure magnesium and hydrochloric acid.

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Simple sugars are readily broken down by the body to provide quick energy whereas complex sugar need to be broken down into simpler sugars before they can be used as energy.

Simple sugars, such as glucose and fructose, are readily broken down by the body to provide quick energy. They are easily absorbed into the bloodstream and transported to cells where they are rapidly metabolized. On the other hand, complex sugars, like starches found in pasta, need to be broken down into simpler sugars before they can be used as energy.

This process takes longer and requires the action of digestive enzymes. Once broken down, the resulting simple sugars are absorbed and used for energy in a similar way to simple sugars. However, the digestion of complex sugars is slower, leading to a more sustained release of energy compared to simple sugars.

Overall, both simple and complex sugars can be used by the body for energy, but the rate at which they are metabolized and the duration of energy release differ.

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Answer:

It depends through where the glucose goes through

Explanation:

1. In order to answer this one and the next one, we will use mass percentage as our guide, since every compound has a mass percentage for each element, and this is found by checking the total mass and the separate masses of each element, for example, MgF2, the mass percentage is 39% for Mg and 61% for F2, this is due to their molar mass, 24g for Mg and 38g for F2

We have 27.1 g of Mg, and this will always correspond for 39% of the total mass of the compound, so we can do the following math:

100% = x

39% = 27.1g

x = 69.5 grams is the total mass of MgF2, now we only have to subtract the value of Mg and then we will have F2

69.5 - 27.1 = 42.4 grams, this is the mass of Fluorine

2. The same step by step from the previous question, 36% of the total mass is Al and 64% is S, but this question has a little difference, now we have the mass of the compound, but the process is very similar

100% = 50.2 grams

64% = x grams

x = 32.1 grams, which can be considered as letter A

The distance of a marathon race in kilometers is 42.1642.

To convert miles to kilometers, we need to multiply the distance by the conversion factor of 1.61. So, for a marathon race of 26.2 miles, we can multiply 26.2 by 1.61 to get the distance in kilometers.

26.2 miles x 1.61 kilometers/mile = 42.1642 kilometers

This conversion factor is important when dealing with international races or when communicating with people from different countries. While the United States commonly uses miles for measuring distance, many other countries use kilometers. It is important to be familiar with both systems of measurement and know how to convert between them. This can prevent misunderstandings and ensure accurate communication and planning.

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Gravity, as a fundamental force of nature, is influenced by several factors. The following are some of the key factors affecting gravity:

Sedimentary rocks include limestone. When ocean water evaporates, calcium carbonate is left behind, and this is how it forms.

Limestone is one of the most common types of chemical rocks. Limestone is created in the ocean by calcium and bicarbonate ions that erode from the remains of shells, coral, crustaceans, and mollusks. Wave action gradually disintegrates these structures into calcite and other calcium carbonate-based minerals, which accumulate in ocean water. As they are carried from the deep ocean environment to shallow places like lagoons and tidal pools, these solutes have the potential to precipitate to create sediments rich in calcium carbonate.  calcium carbonate can precipitate in lagoons to create ooids, which are spherical nodules that stick together to produce oolitic limestone, or limestone.

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The density of a sample of argon gas at 60 ∘C and 858 mmHg is 1.65 g/L..

To calculate the density of a gas sample, we can use the ideal gas law equation:

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 in Kelvin.

To convert the given temperature of 60 °C to Kelvin, we add 273.15:

T = 60 °C + 273.15 = 333.15 K.

Given:

Temperature (T) = 333.15 K,

Pressure (P) = 858 mmHg.

First, we need to convert the pressure from mmHg to atm since the ideal gas constant (R) has units of atm·L/(mol·K). There are 760 mmHg in 1 atm, so:

P = 858 mmHg / 760 mmHg/atm ≈ 1.129 atm.

To find the density, we need to rearrange the ideal gas law equation to solve for density (ρ):

ρ = (P * M) / (RT),

where M is the molar mass of argon gas (approximately 39.95 g/mol).

Plugging in the values, we have:

ρ = (1.129 atm * 39.95 g/mol) / (0.0821 atm·L/(mol·K) * 333.15 K),

Calculating this expression gives us:

ρ ≈ 1.65 g/L.

Therefore, the density of the sample of argon gas at 60 °C and 858 mmHg is approximately 1.65 g/L.

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Solids, liquids, and gases differ in terms of packaging of the atoms in its constituent atomic level.

Solids, liquids, and gases are the three main states of matter. They differ in the way their atoms or molecules are arranged and how they interact with one another. Solids have a definite shape and a definite volume. The atoms or molecules in a solid are tightly packed together and are not free to move around. Solids also have a low compressibility and a high density. Liquids have a definite volume but no definite shape. They take the shape of their container. The atoms or molecules in a liquid are close together but are free to move around. Liquids have a low compressibility and a lower density than solids. Gases have no definite shape or volume. They expand to fill their container. The atoms or molecules in a gas are widely spaced and are free to move around. Gases have a high compressibility and a low density. Examples of gases include air, oxygen, and natural gas. In summary, Solids have a fixed shape and volume, liquids take the shape of their container, have a definite volume and gases have no fixed shape or volume and expand to fill their container.

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Answer:

b.location in the sky (If the question is saying:The H-R diagram is useful in

studying all of these about a star except for)

Explanation:

The theoretical HR diagram plots the temperature of the star vs their luminosity (brightness) and the observational HR diagram plots color of the stars vs the absolute magnitude. Depending on mass, stars will also go through specific evolutionary stages that can be seen through the location of the star on the HR diagram. However, the HR diagram will not have data on the location of the star in the sky.

Answer:

To get from DNA, written in one chemical language, to protein, written in another, requires two major stages, transcription and translation.

Explanation:

I hope This Helps ^^!!! あなたの歓迎

Answer:

Which of these will form hydrogen bonds?

a. CH2Br2

b. CH3OCH2CH3

c. H2NCH2COOH

d. H2SO3

e. CH3CH2OH

Explanation:

A hydrogen bond is the weak electrostatic force of attraction that exists between a covalently bonded hydrogen atom and a highly electronegative atom like N,O, and F.

For example, water has a hydrogen bond between the hydrogen atoms of one molecule and the oxygen atom of another molecule.

Among the given molecules,

a. CH2Br2 does not have a hydrogen bond because it does not have N or O or F.

b. CH3OCH2CH3 does not have a hydrogen bond.

Due to the absence of -OH or -NH or H-F bonds.

c. H2NCH2COOH  shows hydrogen bonding.

d. H2SO3 has hydrogen bonding.

Due to the presence of -OH bond.

e. CH3CH2OH has hydrogen bonding.

Due to the presence of -OH bond.

Answer:

Earthquake...

Explanation:

I mean, its kinda the only one that makes sense aha

And took test!

The word earthquake identifies the shaking that results from movement under Earth's surface.

Hence, option 1 is the answer.

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The factor most sensitive to changes in temperature is the thermal expansion coefficient of a material.

In physics, the sensitivity of a factor to changes in temperature is determined by its thermal expansion coefficient. The thermal expansion coefficient measures how much a material expands or contracts when its temperature changes. Different materials have different thermal expansion coefficients, which determine their sensitivity to temperature changes.

For example, solids generally expand when heated and contract when cooled. This is because the atoms or molecules in a solid vibrate more vigorously as the temperature increases, causing them to move further apart and the material to expand. Conversely, when the temperature decreases, the atoms or molecules vibrate less, causing the material to contract.

Gases, on the other hand, are highly sensitive to changes in temperature. When a gas is heated, its molecules move faster and collide more frequently, leading to an increase in pressure and volume. As a result, gases expand significantly with temperature increases. Conversely, when a gas is cooled, its molecules move slower and collide less frequently, leading to a decrease in pressure and volume.

Liquids also expand with temperature, but to a lesser extent than gases. The expansion of liquids is due to the increased kinetic energy of their molecules, which causes them to move further apart. However, the intermolecular forces in liquids are stronger than in gases, limiting their expansion.

Understanding the thermal expansion properties of materials is important in various fields. For example, in engineering and construction, knowledge of thermal expansion helps prevent structural damage caused by temperature changes. In manufacturing, it is crucial for designing and producing components that can withstand temperature variations without failure.

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The factor that is most sensitive to changes in temperature is the enzyme activity or enzymatic reactions.

What is an enzyme?

An enzyme is a biomolecule that is a catalyzer in various biological and chemical processes, accelerating the rate of a chemical reaction without itself being affected.

What is the effect of temperature on enzymes?

Temperature affects enzyme activity by modifying the enzyme's three-dimensional shape, leading to a higher rate of reaction until a particular temperature is reached, after which the reaction rate begins to decrease, resulting in enzyme denaturation and a decrease in enzyme activity.

Factors that affect enzyme activity are:

Temperature: Enzyme activity is highly influenced by temperature, with the optimal temperature for enzyme activity generally ranging from 30°C to 40°C, depending on the enzyme's origin. When the temperature is lowered, the enzyme activity slows down until it ceases to function, resulting in a decrease in the rate of reaction. The rate of reaction increases with increasing temperature until it reaches the maximum point at which the enzyme becomes denatured and stops functioning. Therefore, enzymes are the most temperature-sensitive factor.

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Answer:

I think true

Explanation:

Answer:

Ribose

Explanation:

This is the pentose sugar found in RNA commonly.

Cinnabar is a mineral and Limestone is a rock.

A limestone is a type of sedimentary rock, meaning that it was created as a result of sediments that were transported by water or wind and deposited on top of other rocks; in this case, the sediments were small seashell fragments and ocean debris. It is easily found in crystalline waters at shallow depths and is a chemical compound called calcium carbonate.

The chemicals that make cinnabar, a non-metallic mineral compound, dangerous for people are 85% mercury and 15% sulfur. It is a mineral with a brilliant red color that is created by various reactions and materials present in hot water.

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Answer:

A toaster

Explanation:

It uses electrical energy and converts it to heat.