In translation, what end are amino acids always added?

Answer:

Static electricity

Explanation:

Because the friction is creating heat and static.

Answer:

it generates static:)

Answer:

three electrons were transferred in the process

Explanation:

The electrode potential of the cathode is

E°cathode= E°cell + E°anode

E°cathode = 2.35V + (-0.74V)

E°cathode= 1.61 V

Let us look at the reduction half equation; the oxidation half equation must be;

Oxidation half equation;

Cr(s) ----> Cr^3+(aq) + 3e

The reduction half equation must now be

Reduction half equation;

3Ce^4+(aq) + 3e ----> 3Ce^3+(aq)

This implies that three electrons were transferred in the process as shown by the balanced half cell reaction equations.

Gas B initially had 8400 J of thermal energy.

To find the initial thermal energy of gas B, we can use the fact that heat is transferred from gas A to gas B until they reach thermal equilibrium. The total amount of heat transferred is equal to the change in thermal energy of gas A.

We are given that gas A initially has 8900 J of thermal energy and transfers 500 J of heat energy to gas B. Therefore, the change in thermal energy of gas A is -500 J (negative because energy is transferred from A to B).

Since the amount of gas A is 4.2 mol, and we know that the thermal energy change is proportional to the amount of gas, we can set up a proportion to find the thermal energy change for 1 mol of gas A:

(change in thermal energy of gas A) / (amount of gas A) = (change in thermal energy of 1 mol of gas A) / (1 mol)

Therefore, the change in thermal energy of 1 mol of gas A is:

(change in thermal energy of 1 mol of gas A) = (change in thermal energy of gas A) / (amount of gas A)

= (-500 J) / (4.2 mol)

≈ -119.05 J/mol

Now, we can find the initial thermal energy of gas B. Since gas A transfers its thermal energy to gas B, the initial thermal energy of gas B is equal to the sum of its initial thermal energy and the change in thermal energy of gas A:

(initial thermal energy of gas B) = (initial thermal energy of gas A) + (change in thermal energy of 1 mol of gas A) * (amount of gas B)

= 8900 J + (-119.05 J/mol) * 2.9 mol

≈ 8575.4 J

Therefore, gas B initially had approximately 8575.4 J of thermal energy.

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The energy of a photon that has a frequency of 2.3 x 10¹⁴ Hz is 1.524 × 10-¹⁹J

HOW TO CALCULATE ENERGY OF A PHOTON:

E = hf

Where;

E = energy of photon (J)

h = Planck's constant (6.626 × 10-³⁴J)

f = frequency of photon (Hz)

E = 6.626 × 10-³⁴ × 2.3 × 10¹⁴

E = 15.24 × 10-³⁴+¹⁴

E = 15.24 × 10-²⁰J

E = 1.524 × 10-¹⁹J

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Balanced nuclear equation by giving the mass number, atomic number, and element symbol for the missing species is ¹⁰B + ⁴He → ¹⁴N + 1¹H

The missing species in the given nuclear equation is ¹⁴N and 1¹H.

Let's write the mass number, atomic number, and element symbol for the missing species:

Mass number of ¹⁴N = 14

Atomic number of ¹⁴N = 7

Element symbol of ¹⁴N = N (since the atomic number of nitrogen is 7)

Mass number of 1¹H = 1Atomic number of 1¹H = 1

Element symbol of 1¹H = H (since the atomic number of hydrogen is 1)Therefore, the main answer of the balanced nuclear equation is: ¹⁰B + ⁴He → ¹⁴N + 1¹H.

In order to balance a nuclear equation, it is essential that the total mass number and the total atomic number is conserved.

Balancing nuclear equations requires both the knowledge of atomic structure as well as knowledge of the laws of conservation of mass and charge.

A balanced nuclear equation is essential in understanding nuclear reactions and in predicting the outcomes of nuclear reactions.The balanced nuclear equation for the given nuclear equation is:¹⁰B + ⁴He → ¹⁴N + 1¹H. Conclusion:Thus, the missing species in the given nuclear equation is ¹⁴N and 1¹H.

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Water 3.0 deals mainly with sewage treatment. The primary aim of this project is to reduce the harmful impacts of chemical pollutants from industrial and agricultural activities on natural water resources.

Currently, used wastewater treatment technologies can break down some of the chemicals in wastewater but not all of them. Chemicals that are not broken down are referred to as persistent organic pollutants. These chemicals persist in the environment for long periods, and they can cause severe damage to aquatic life and human health.
Currently, the primary challenge facing water treatment technologies is the removal of persistent organic pollutants such as pesticides, pharmaceuticals, and endocrine-disrupting chemicals from wastewater.

These pollutants are generally water-soluble and resist microbial degradation, making them hard to remove from wastewater using current water treatment technologies. For example, conventional activated sludge treatment used in wastewater treatment plants does not remove some persistent organic pollutants from wastewater.
Failure to remove these pollutants from wastewater can have significant environmental and health impacts.

For example, pharmaceutical chemicals can cause antibiotic resistance, while endocrine-disrupting chemicals can cause birth defects, cancer, and other health problems.

Therefore, there is a need to improve wastewater treatment technologies to remove persistent organic pollutants from wastewater.
In conclusion, wastewater treatment technologies can break down some chemicals but not all. Chemicals that are not broken down are persistent organic pollutants and pose a significant risk to the environment and human health. Therefore, it is important to develop wastewater treatment technologies that can remove these pollutants from wastewater.

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The electron configuration of an atom is determined by the Aufbau principle, which states that electrons occupy the lowest energy orbitals available. For the Fe (iron) atom, the atomic number is 26, meaning it has 26 electrons.

To determine the set of four quantum numbers for the last electron added to the Fe atom, we need to consider the electron configuration. The electron configuration of Fe can be represented as: 1s2 2s2 2p6 3s2 3p6 4s2 3d6.

The last electron added to the Fe atom is added to the 3d sublevel, specifically the 3d6 orbital. Therefore, the set of four quantum numbers that could represent the last electron added to the Fe atom are:

n = 3 (principal quantum number)

l = 2 (azimuthal quantum number, representing the d orbital)

ml = -2, -1, 0, 1, 2 (magnetic quantum number, representing the five possible d orbitals)

ms = +1/2 or -1/2 (spin quantum number, representing the two possible electron spin directions)

So, the set of four quantum numbers for the last electron added to the Fe atom in accordance with the Aufbau principle would be n = 3, l = 2, ml = -2, and ms = +1/2 or -1/2.

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Answer:

hydrogen bond exists between nucleotides

Answer:

phosphodiester

Explanation:

Noncovalent hydrogen bonds connect the nucleotides that make up each DNA strand. Individual hydrogen bonds are weaker than covalent bonds like phosphodiester bonds. But they are so numerous that they strongly connect the two DNA polymers.

I hope this helps you

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Alkynes are classified as terminal or internal depending on the position of the triple bond's carbon(C) atoms. If the triple bond is between the last two C in the chain, the alkyne is known as a terminal alkyne. If the triple bond is between carbons that are not the last in the chain, the alkyne is known as an internal alkyne.

Diastereomers are non-mirror image stereoisomers(si) that can't be superimposed on one another. This means that a six-C alkyne that can exist as diastereomers must have a minimum of two stereocenters. Therefore, a six-C alkyne that can exist as diastereomers is shown in the figure below: Explanation: A C-C triple bond characterizes an alkyne.

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Approximately 75.825 grams of KNO3 to make 1.50 liters of a 0.50 M KNO3 solution.

To find the number of grams of KNO3 needed to make a 0.50 M KNO3 solution in 1.50 liters, we can use the formula:

Molarity (M) = moles of solute / liters of solution

First, we need to calculate the number of moles of KNO3 needed. Since the molarity is given as 0.50 M and the volume is 1.50 liters, we can rearrange the formula to solve for moles of solute:

moles of solute = Molarity (M) * liters of solution

moles of solute = 0.50 M * 1.50 liters
moles of solute = 0.75 moles

Next, we can calculate the mass of KNO3 using its molar mass. The molar mass of KNO3 is 101.1 g/mol.

mass of KNO3 = moles of solute * molar mass
mass of KNO3 = 0.75 moles * 101.1 g/mol
mass of KNO3 = 75.825 grams

Therefore, you would need approximately 75.825 grams of KNO3 to make 1.50 liters of a 0.50 M KNO3 solution.

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The property of water whereby molecules tend to stick to objects is called adhesion. The correct option is d.

Adhesion is a property of a molecule to join its molecule with the surface of the other object. This happens due to the attraction of force between the surface of two substances.

So, when water molecules stick to the surface of other objects, it is adhesion. When the water molecules are attracted towards is called cohesion.  This happens with water due to the reason that water is a polar substance.

Thus, the correct option is d. adhesion.

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19.8% percent CdSO4 by mass is contained within the solution.

Aqueous solutions are made up of water and one or much more dissolved materials. Solids, gases, and other liquids can all dissolve in an aqueous solution. A combination needs to be stable in following are considered a real solution.

By dividing the amount of both the solute but by mass of the fluid and multiplying by 100, one may get the weight percent of a solute in such an aqueous solution. CdSO4 has a mass of 247.8 g in such a 1.0 molal solution, or 1.0 mol x 247.8 g/mol. CdSO4 is therefore present in the solution at a mass-percentage of 247.8 g / (247.8 g + 1000 g) x 100% = 19.8%.

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Energy gets  from motion is called kinetic energy and  energy due to  position is called potential energy.

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Answer:

Its quite vague, instead you could say an atom is the smallest building block which further consists of subatomic particles like protons, neutrons and electrons :)

Hope thi helps :) and I'd appreciate if you'd mark brainliest because ive been stuck on the same rank for quite a long time :(

Answer:

The feedback loop involving water vapor and temperature is a positive feedback loop. As temperature increases, the amount of water vapor that can be held in the atmosphere also increases. This leads to an increase in the amount of water vapor in the atmosphere, which further amplifies the greenhouse effect and contributes to additional warming.

In other words, warmer temperatures lead to more water vapor in the atmosphere, which traps more heat, causing further warming, and so on. This positive feedback loop can amplify the initial warming effect caused by other factors such as greenhouse gas emissions or changes in solar radiation.

Conversely, if the temperature decreases, the amount of water vapor that can be held in the atmosphere decreases, which can lead to a decrease in the amount of water vapor present in the atmosphere, reducing the greenhouse effect and contributing to cooling. However, this negative feedback loop is weaker than the positive feedback loop described above, and it tends to be dominated by the positive feedback loop under most circumstances.

A potential disadvantage of an enzyme having a very high affinity for its substrate, other things being equal, is that the enzyme-substrate complex will be in a deep energy well (option C).

This means that the enzyme-substrate complex will be more stable, which could potentially slow down the rate of the reaction as it takes more energy for the complex to transition to the product state.

Option A is not accurate, as pulling the substrate out of the solution does not necessarily decrease the driving force for the forward reaction.

Option B is also not accurate, as high affinity does not inherently cause spatial distortion of the enzyme.

Option D is incorrect, as tight binding does not necessarily result in a higher energy transition state complex.

Therefore, the correct answer is not E, as not all of the options are accurate.

The most suitable answer is option C: The enzyme-substrate complex will be in a deep energy well, meaning that the enzyme-substrate complex will be more stable.

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The volume, in liters, is occupied by  \(1.5 x 10²³\) atoms of argon gas at STP (Standard Temperature and Pressure) occupying a volume of 22.4 liters.



1. To determine the volume occupied by the atoms of argon gas, we can use Avogadro's law, which states that equal volumes of gases at the same temperature and pressure contain an equal number of molecules or atoms.
2. According to Avogadro's law, at STP, 1 mole of any gas occupies a volume of 22.4 liters.
3. 1 mole of any substance contains \(1.5 x 10²³\) particles (Avogadro's number).
4. In this case, we have \(1.5 x 10²³\) atoms of argon gas.
5. By dividing the number of atoms by Avogadro's number, we can determine the number of moles of argon gas: \(1.5 x 10²³ atoms / 6.022 x 10²³ atoms/mole = 0.249 moles\).
6. Finally, we can multiply the number of moles by the volume occupied by 1 mole of gas at STP: 0.249 moles x 22.4 liters/mole = 5.576 liters (rounded to 3 significant figures).

In conclusion, \(1.5 x 10²³\) atoms of argon gas at STP occupy a volume of approximately 5.576 liters.

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The amount of calcium ingested by drinking eight 8-oz glasses of local water is 0.0041655 mol. By drinking 1.0L of local water, approximately 166.85 mg of calcium is ingested, which is 14.5% of the daily requirement of calcium.

1. To calculate the amount of calcium ingested by drinking eight 8-oz glasses of local water, we need to know the volume of water and the concentration of calcium ions present in it.1 oz = 29.57mL

So, eight 8-oz glasses of water = 8 x 8 oz = 64 oz= 64 x 29.57 mL = 1892.48 mL1 L = 1000 mL

Therefore, the volume of water in liters = 1892.48/1000 = 1.8925 L

Concentration of Ca ions in water = 0.0022 mol/L

So, the amount of calcium ingested = concentration of calcium x volume of water= 0.0022 mol/L x 1.8925 L= 0.0041655 mol of calcium

2. To calculate the percentage of the daily requirement of calcium met by drinking 1.0L of local water, we need to convert the amount of calcium in moles to milligrams (mg). The molar mass of calcium is 40.08 g/mol.0.0041655 mol of calcium weighs = 0.0041655 mol x 40.08 g/mol = 0.16685464 g or 166.85 mg

The percentage of the daily requirement of calcium met by drinking 1.0L of local water is given by the formula:

Percentage of daily requirement met = (amount of calcium in water/daily requirement of calcium) x 100%Daily requirement of calcium = 1150 mg

Percentage of daily requirement met = (166.85 mg/1150 mg) x 100%≈ 14.5 %

Therefore, by drinking 1.0L of local water, approximately 166.85 mg of calcium is ingested, which is 14.5% of the daily requirement of calcium.

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Answer:

Explanation:

Decreasing the volume of a contained gas will increase its pressure, and increasing its volume will decrease its pressure. In fact, if the volume increases by a certain factor, the pressure decreases by the same factor, and vice versa. Volume-pressure data for an air sample at room temperature are graphed in Figure 5.

Because the volume has decreased, the particles will collide more frequently with the walls of the container. ... When the volume decreases, the pressure increases. This shows that the pressure of a gas is inversely proportional to its volume. This is shown by the following equation - which is often called Boyle's law.

The kinetic energy of the gas molecules increases, so collisions with the walls of the container are now more forceful than they were before. As a result, the pressure of the gas doubles. Decreasing the temperature would have the opposite effect, and the pressure of an enclosed gas would decrease.

For a fixed mass of gas at constant temperature, the volume is inversely proportional to the pressure. That means that, for example, if you double the pressure, you will halve the volume. If you increase the pressure 10 times, the volume will decrease 10 times.

Temperature, pressure, volume and the amount of a gas influence its pressure.

Gay Lussac's Law - states that the pressure of a given amount of gas held at constant volume is directly proportional to the Kelvin temperature. If you heat a gas you give the molecules more energy so they move faster. This means more impacts on the walls of the container and an increase in the pressure.

i really hope some of this helped i would put more but its a lot too type

Answer:

Explanation:

NCO 2= 4,5

VCO2=  4,5* 22,4=100,8

Answer:

C. Decrease the pressure of Gas A and increase the temperature of Gas B.

Explanation:

The values for standard temperature and pressure (STP) are zero degrees Celsius and one atmosphere. Since the temperature of gas A is higher than zero degrees, it will have to be reduced. Since the pressure of gas B is less than one atmosphere, it will have to be increased.

Seasons on the Earth can be defined as the period or time of year which is characterized by several factors like weather, and temperature occurring. The tilt of the Earth's axis causes the seasons.

Earth has four types of seasons namely - Summer season, Rainy season, Autumn season, and Winter season.

Summer season starts in the month of April and lasts till the month of June.  It is usually the hottest season out of all four seasons. The days are longer and the nights are shorter in this season.

The second season is the Rainy season which arrives in the month of June and last till the month of September. This season is the Wet season of the year because in rainy seasons there are rain showers all over. It is also known as the Monsoon season. As the monsoon arrives, there is relief from high daytime temperatures and night temperature also drops. Monsoons are important for vegetation to grow and also important for human beings.

The third season is the Autumn season which begins after the monsoon season and ends before the winter season. This is in the month of September till the end of October. The length of day and night are equal.

The last season on the Earth is the Winter season. This season occurs after the Autumn season and before the arrival of Spring. Winter is the coldest season of the year. The length of nights is longer than the length of days in the winter season.

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Answer:

Explanation:

What does it mean by are represented by is it like cells when things can a cell molecule?

If a TLC plate is placed in a jar where the solvent level is above the level of the origin (sample spot), the solvent will reach and dissolve the sample before it has a chance to form a spot. This can cause the sample to spread out and interfere with the accuracy of the results.

If you inadvertently spotted your TLC plate too low, one solution would be to let the solvent front reach the bottom of the plate, let the solvent evaporate, and then re-develop the plate with fresh solvent. This will help to avoid any interference from previous runs and ensure accurate results. Another solution would be to scrape off the low spots and re-spot the sample higher up on the plate. It's also a good practice to make a note of the error in your lab notes so that you can take it into account when interpreting your results

A TLC plate, or Thin Layer Chromatography plate, is a type of chromatography used in analytical chemistry to separate and identify components in a mixture. It consists of a solid substrate, usually made of glass, plastic, or aluminum, coated with a thin layer of adsorbent material, such as silica gel or aluminum oxide

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Explanation:

a) To calculate the relative molecular mass of Na2CO3.10H2O, you need to add up the relative atomic masses of each element in the formula.

Na₂CO3.10H₂O: 2(22.99) + 12.01 + 3(16.00) + 10(1.01) + 2(18.02) = 286.19 g/mol

M₁ = 286.19 g/mol

(b) To make a 250cm³ of 0.10 mol/dm³ solution, we need to calculate the number of moles of Na2CO3.10H2O, and then multiply it by the molar mass of Na2CO3.10H2O to find the mass needed.

First, we calculate the number of moles present in 250 cm³ of 0.10 mol/dm³ solution:

moles = concentration x volume = 0.10 mol/dm³ x 0.25 dm³ = 0.025 mol

Then we multiply the moles by the molar mass to find the mass needed:

mass = moles x molar mass = 0.025 mol x 286.19 g/mol = 7.15 g

So we need 7.15 g of Na2CO3.10H2O to make 250 cm³ of a 0.10 mol/dm³ solution.

Answer:

This law states that the volume and temperature of a gas have a direct relationship: As temperature increases, volume increases, when pressure is held constant. Heating a gas increases the kinetic energy of the particles, causing the gas to expand.

Explanation:

Considering the Charles's law and STP conditions, the volume of the gas at standard temperature is 12.61 L.

Charles's law establishes the relationship between the volume and temperature of a gas sample at constant pressure.

This law says that for a given sum of gas at constant pressure, as the temperature increases, the volume of the gas increases and as the temperature decreases, the volume of the gas decreases. That is, the volume is directly proportional to the temperature of the gas.

Mathematically, Charles's law states that the ratio between volume and temperature will always have the same value:

\(\frac{V}{T} =k\)

Considering an initial state 1 and a final state 2, it is fulfilled:

\(\frac{V1}{T1} =\frac{V2}{T2}\)

The STP conditions refer to the standard temperature and pressure. Pressure values at 1 atmosphere and temperature at 0 ° C (or 273 K) are used and are reference values for gases. And in these conditions 1 mole of any gas occupies an approximate volume of 22.4 liters.

In this case, you know:

Replacing in the definition of Charles's law:

\(\frac{13.4 L}{290 K} =\frac{V2}{273 K}\)

Solving:

\(V2= 273 K\frac{13.4 L}{290 K}\)

V2= 12.61 L

Finally, the volume of the gas at standard temperature is 12.61 L.

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Answer: As one atomic dipole nears another atom it will affect the electron density distribution, so for example if the slightly positive end of the atom is located next to another atom, it will attract the electron(s) in the other atom. A covalent bond happens when atoms share an electron between them. The other kind of bond is called ionic, and it happens when one atom gives an electron to another atom. These bonds are held together with electric forces. Two atoms of the same element can be different if their electrons are in different states. If one copper atom has an electron in an excited state and another copper atom has all of its electrons in the ground state, then the two atoms are different.

Answer:

there are relatively few atoms but they can make many molecules

Explanation:

Answer:

Quantitative aspect: one mole of propane reacts with five moles of oxygen ( combustion ) to produce three moles of carbon dioxide and four moles of water.

Qualitative aspect: A colourless gas ( propane ) burns with a blue flame ( combination ) to form a colourless gas that turns lime water milky and drops of colourless liquid that turn anhydrous copper (ii) oxide from blue to white.

The chemical equation in quantitative aspect can be interpreted as  1 mole of propane reacts with 5 moles of oxygen to give 3 moles of carbon dioxide and 4 moles of water and in qualitative aspect a colorless gas is released which burns with blue flame.

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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Answer:

R = 8.314 pKa*L/mol*K

The value for the ideal gas constant (R) is approximately 8.314 kPa·L/(mol·K).

To determine the value for the ideal gas constant (R) when pressure (P) is in kilopascals (kPa), temperature (T) is in kelvins (K), volume (V) is in liters (L), and amount of gas (n) is in moles, we need to use the appropriate units for R based on these measurements.

The ideal gas constant, R, can be expressed in various units. The most common units for R are:

R = 0.0821 L·atm/(mol·K) (atmospheres, liters, moles, and kelvins)

However, since you provided the measurements in kilopascals, liters, moles, and kelvins, we need to use a different value for R that is consistent with these units:

R = 8.314 kPa·L/(mol·K)

Therefore, when pressure is in kilopascals, volume is in liters, amount of gas is in moles, and temperature is in kelvins, the value for the ideal gas constant (R) is approximately 8.314 kPa·L/(mol·K).

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