Name and draw the structure of the a-keto acid resulting when each of the following amino acids undergoes transamination with a-ketoglutarate: a) Aspartate b) Glutamate c) Alanine d) Phenylalanine

The correct option is A

The molecule that can reduce the proton electrochemical gradient in mitochondria is Succinate dehydrogenase.

Succinate dehydrogenase is an enzyme found in the Krebs cycle, also known as the citric acid cycle.

It helps in the oxidation of succinate to fumarate, producing FADH2 (flavin adenine dinucleotide), which in turn reduces the electron carrier protein cytochrome C.

This results in the production of a proton electrochemical gradient across the inner mitochondrial membrane, which is used to synthesize ATP.

The proton electrochemical gradient is created when electrons are transferred from NADH and FADH2 to complex I and complex II of the electron transport chain (ETC) in the mitochondria.

This results in the pumping of protons from the mitochondrial matrix to the intermembrane space, creating an electrochemical gradient.

This gradient is used to power ATP synthase, which produces ATP.

In summary, succinate dehydrogenase helps to reduce the proton electrochemical gradient in mitochondria by producing FADH2, which reduces cytochrome C, and thus reducing the pumping of protons across the mitochondrial membrane.

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Answer:

3,5-dimethyl-2-octene

Explanation:

The parent chain will be choosen based on the highest value. In this case, if we count from top to bottom, we'll get seven carbon, however if we count from the second carbon, going left and then down, we'll get eight carbon. So the parent chain is octene

The double bond is located at the second carbon and the methyl groups are located on carbon 3 & 5. Since there are two methyl groups, we add di- in front of methyl to indicate two methyl groups present.

Note: The functional group has to be prioritise and it needed to be a part of the parent chain. In this case, the functional group is the double bond. (alkene)

Answer:

43

a) 6.730 x 10^-4

b) 5.0 x 10^4

c) 3.010 x 10^-6  

44

a) 7050. g

b) 40000500. mg

c) 2350.0 mL

Inspecting the area before a pesticide application is important to ensure safety, efficacy, and compliance with regulations.

Inspecting the area before a pesticide application is crucial for several reasons. Firstly, it ensures safety, both for the applicator and other people and animals that may be present in the area. By inspecting the area, the applicator can identify any potential hazards, such as water sources or sensitive vegetation, and take appropriate measures to avoid them.

Secondly, inspecting the area helps to ensure the efficacy of the pesticide application. By identifying the specific pests or weeds present and assessing the severity of the infestation, the applicator can choose the appropriate pesticide and application method to achieve the best results.

Lastly, inspecting the area is also important for compliance with regulations. Pesticide use is heavily regulated, and applicators must follow specific rules and guidelines to ensure the safety of the environment and the people and animals that live in it.

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The ratio between the neutral and the zwitterionic form of alanine at pH 7 is 1:100000.

Since the carboxylic group has a pKa of 3, that means that at pH 3 the ratio between its protonated and deprotonated (charged) form is 1:1. The difference between pH 7 and pH 3 is 7 - 3 = 4, which means that (because pH is a negative logarithm), pH 7 is 10000 times more basic than pH 3. This implies that the ratio between the protonated and the deprotonated form of the carboxylic group is 1:10000.
A similar calculation can be applied to the amino group. 8 - 7 = 1, so at pH 7, the ratio between its protonated (charged) and deprotonated form will be 10:1.
We then multiply these two ratios to get a ratio of neutral:zwitterionic = 1:100000.

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Answer:

2.0 x 10²³ atoms Au = 65.4g

1.5 x 10²³ atoms Pb = 51.6g

7.9 x 10²¹ atoms U = 3.1g

Explanation:

We want to convert each to grams.

We can use dimensional analysis to do so.

Kindly view the attached image for work.

1.) 2.0 x 10²³ atoms Au

Needed conversions:

Math: (2.0x10²³atoms)/(6.022x10²³atoms) x 196.966g = 65.4g

2.) 1.5 x 10²³ atoms lead

Needed conversions:

Math: (1.5x10²³atoms)/(6.022x10²³atoms) x 207.2g = 51.6g

3.) 7.9 x 10²¹ atoms U

Needed conversions:

Math: (7.9x10²¹atoms)/(6.022x10²³atoms) x 238.029g = 3.1g

Heat transfer is the process of thermal energy moving from one object to another due to a temperature difference. There are three types of heat transfer: conduction, convection, and radiation.

Conduction is the transfer of heat through direct contact between two objects, such as a pot on a stove or a person touching a hot surface. A common application of conduction is in cooking, where heat is transferred from a stove or oven to the food being cooked.

Convection is the transfer of heat through the movement of fluids, such as air or water. A common application of convection is in heating and cooling systems, where warm or cool air is circulated through a building to regulate its temperature.

Radiation is the transfer of heat through electromagnetic waves, such as heat radiating from a fire or the sun. A common application of radiation is in solar panels, which convert sunlight into usable energy.

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Note: The correct question would be as bellow,

What is heat transfer and what are the 3 types of heat transfer Support your answer with applications for each type?

To calculate the number of equivalents of Mg2+ in a solution, we need to divide the number of moles by 2, as each mole of Mg2+ contains 2 equivalents. In this case, the solution containing 2.50 mol of Mg2+ has 1.25 equivalents of Mg2+.

To answer this question, we need to know the definition of an equivalent. An equivalent is the amount of a substance that can combine with or replace one mole of hydrogen ions in an acid-base reaction. In the case of Mg2+, it can replace two hydrogen ions, so one equivalent of Mg2+ is equal to half a mole of Mg2+.
Given that the solution contains 2.50 mol of Mg2+, we can calculate the number of equivalents by dividing the number of moles by 2. This is because each mole of Mg2+ contains 2 equivalents, as we discussed earlier.
2.50 mol Mg2+ / 2 = 1.25 equivalents of Mg2+
Therefore, the solution that contains 2.50 mol of Mg2+ has 1.25 equivalents of Mg2+.

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Due to a phenomenon known as diamagnetic anisotropy, aromatic protons emit signal(s) in the range of 7-8 ppm.

In aromatic compounds with resonance in the 7–8 ppm range, this impact is more prominent. A ring current is the term for the movement of the p electrons in benzene, and it induces an extra magnetic field that helps the protons. While the signals attributable to its aromatic carbons were seen in the range from 128 to 133 ppm, those for the aromatic phthalate ring protons were seen in the range from 7.63 to 7.82 ppm. ... the cis/trans-cyclohexylene CH carbon signals were detected in the range of 70.8 to 72.3 ppm.

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Considering the definition of molar mass, the amount of moles of CaF₂ in 75.5 g of CaF₂ is 0.968 moles.

The molar mass of substance is a property defined as the amount of mass that a substance contains in one mole.

The molar mass of a compound is the sum of the molar mass of the elements that form it multiplied by the number of times they appear in the compound.

In this case, you know the molar mass of the elements is:

The molar mass of the compound CaF₂ is calculated as:

CaF₂= 40 g/mole + 2× 19 g/mole

Solving:

CaF₂= 78 g/mole

You can apply the following rule of three: If by definition of molar mass 78 grams of the compound are contained in 1 mole, 75.5 grams of the compound are contained in how many moles?

moles= (75.5 grams× 1 mole) ÷78 grams

moles= 0.968 moles

Finally, the amount of moles is 0.968.

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Answer:

Given theoretical yield of NH3 is 945g.

The actual yield is 598g.

What is the %yield?

Explanation:

%yield of a chemical reaction can be calculated by using the formula:

\(%yield=\frac{actual yield}{theoretical yield} * 100\)\(\frac{actual yield}{theoretical yield} * 100\)

Substitute the given values in this formula to get the %yield.

\(\frac{598g}{945g} * 100\\=63.3\)

Hence, the %yield for the formation of ammonia is ---- 63.3.

Answer:

2) It is less than before the tax was imposed.

A portion of the tax that is levied on a commodity must be paid by the seller, which lowers their profit margin. Sellers will raise the cost of the good and pass this cost onto purchasers in order to preserve their profit. This causes the market price that buyers must pay to rise as a result of taxation.

Answer:

Water is a remarkable substance, and its unique properties are largely due to the presence of polar covalent bonds and hydrogen bonds in its structure. These characteristics play a crucial role in the physical and chemical properties of water, making it essential for life as we know it.

Explanation:

The polar covalent bonds in water arise from the unequal sharing of electrons between oxygen and hydrogen atoms. This results in the oxygen atom having a partial negative charge (δ-) and the hydrogen atoms having partial positive charges (δ+). These charges create polarity within the water molecule, leading to the formation of hydrogen bonds.

Hydrogen bonds occur when the partially positive hydrogen atom of one water molecule is attracted to the partially negative oxygen atom of another water molecule. These hydrogen bonds are relatively weak individually, but when present in large numbers, they contribute to the cohesion, surface tension, and high boiling point of water.

The importance of these bonds is manifold. The cohesion between water molecules due to hydrogen bonding enables water to form droplets, have a high surface tension, and flow freely, facilitating transport within organisms and in the environment. Additionally, hydrogen bonding leads to the high specific heat capacity and heat of vaporization of water, making it an effective regulator of temperature in living organisms and ensuring stable environmental conditions.

Furthermore, hydrogen bonds play a crucial role in the unique properties of water as a solvent. The polar nature of water allows it to dissolve a wide range of substances, including ionic compounds and polar molecules, facilitating various biological processes such as nutrient transport and chemical reactions in cells.

If you spill hydrochloric acid on your skin or clothing then rinse the exposed clothing or skin with water and call 911. Option A and C are correct.

If you spill hydrochloric acid on your skin or clothing, it's important to act quickly to minimize the damage. You should rinse the affected area with water immediately to dilute the acid and prevent further skin damage. It's also important to call 911 for medical assistance, as hydrochloric acid can cause serious chemical burns and may require medical treatment.

Telling your teacher about the accident is important for safety and record-keeping purposes, but it should not be the first priority. Trying to save the hydrochloric acid for recycling purposes is not recommended, as your safety should be the top priority in this situation.

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Answer:A , B

Explanation:

D is the answer so now we can understand

Answer:

to my understanding D iz da answer

Explanation:

let hope dat it will help u

Lewis structure is the electron dot representation of the atomic and molecular bonds of the molecules. Trigonal planar is the shape of the formaldehyde.

A trigonal planar shape of the molecule is the arrangement of the central atom attached to the other three atoms making them look triangle-shaped.

The attachment of the carbon to the two hydrogens and one oxygen atom can be given by the VSEPR theory. The number of the electron pair in the molecule is 3 making them \(\rm sp_{2}\) hybridized and hence have a trigonal planar shape.

Therefore, option D.  trigonal planar is the shape.

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Answer:

Explanation:

step by step is in the attached

(a) The speed of light in the unknown substance is determined 1.82 x 10⁸ m/s.

(b) The light will bend away from the normal since speed of light in air is not equal to speed of light in the substance.

The speed of light passing from air into the substance is calculated as follows;

refractive index = speed of light in air / speed of light in the substance

speed of light in the substance = speed of light in air/refractive index

speed of light in the substance = (3 x 10⁸) / (1.65)

speed of light in the substance = 1.82 x 10⁸ m/s

Thus, the light will bend away from the normal since speed of light in air is not equal to speed of light in the substance.

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The product of a synthesis reaction between magnesium metal and nitrogen gas is magnesium nitride (Mg3N2).

In a synthesis reaction, two or more reactants are combined to form a new, more complex product. When magnesium metal reacts with nitrogen gas, the magnesium donates electrons to the nitrogen atoms, forming a strong covalent bond and resulting in the formation of magnesium nitride. The reaction can be represented by the following equation:

                                    3Mg + N2 ⇒ Mg3N2

Magnesium nitride (Mg3N2) is a chemical compound made up of magnesium and nitrogen. It is a white solid that is used in a variety of industrial and scientific applications, such as in the production of high-strength, lightweight alloys for the aerospace and automotive industries, and as a catalyst in chemical reactions.

The synthesis of magnesium nitride from magnesium metal and nitrogen gas is a typical example of a synthesis reaction, where two or more simple substances are combined to form a more complex product. In this reaction, magnesium metal reacts with nitrogen gas to form magnesium nitride. The reaction is exothermic, releasing heat, and is usually performed at high temperatures (around 800-1000°C) in a sealed container under an inert atmosphere to prevent the formation of unwanted by-products.

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Answer:

Proxima Centauri was discovered in 1915.

Robert Innes used a blink comparator to examine a photographic plate showing an area of 60 square degrees around Alpha Centauri.

The sixty-four-meter radio telescope at Parkes Observatory in Australia.

they used the James Webb Space Telescope and The sixty-four-meter radio telescope.

no nothing as been to Proxima Centauri it would take about 54,400 years to get there.  

getting to Proxima Centauri, our solar system's nearest star, would take four years and three months. And that is travelling at light speed, a velocity well beyond our reach. The quickest we could currently get to Proxima Centauri, using our fastest rockets, is 80,000 years.

Explanation:

Complete question: Learning Task 4: Read the following situations. Identify the part and the

function of the microscope mentioned in each situation. Write your answers in

your answer sheet.

Situation No. 1. Joey is about to start working on his experiment about plant

cell using a compound microscope. He noticed that one of the objective lens is

missing and the course adjustment knob is not working. The eyepiece lens is

also broken.

Answer: The parts of the compound microscope mentioned in this situation includes:

Objective lens, course adjustment knob and eyepiece lens.

Explanation: A compound microscope is a magnifying instrument which can be used to carry out various experiments in a laboratory. According to the working principle of a microscope, the magnified image of the object (plant cell) is first produced by a lens close to the object called the objective lens. This collects light from the object and forms the primary image. A second lens near the eye called the eyepiece lens enlarges the primary image,converting it into one that can enter the pupil of the eye. The different parts and the functions of the compound microscope observed by Joey includes:

--> Objective lens: The objective lens gathers light from the specimen, which is focused to produce the real image that is seen on the eyepiece lens. It's functions includes formation of primary image and determination of the quality of the image produced.

--> Course adjustment knob: This is the part of microscope that is used in focusing the specimen that is under observation through changing the distance between the lens and the specimen. Therefore it functions to bring the specimen into general focus.

--> Eyepiece lens: This is the lens that is closest to the eye of the observer. It functions to magnify the image formed by the objective lens as it's being placed near the focal length of the objective lens.

Answer:

The frequency of the wave is 2Hz.

Explanation:

The frequency of a wave is the number of waves that pass a fixed point in a given amount of time. It can be measured by counting the number of crests that pass the point in a given time period. The higher the number is, the greater is the frequency of the wave.

So, by counting the number of times the coils in the spring are widely spaced, which is 2 times in 1 second, we get the frequency of the wave.

Answer:

The answer is 2.

Explanation:

Hope this helps ;)

Answer:

End point

Explanation:

The point at which the indicator changes color is called the endpoint. So the addition of an indicator to the analyte solution helps us to visually spot the equivalence point in an acid-base titration

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Answer:

0.11 M

Explanation:

The computation of molarity of the CH3COOH solution is shown below:-

\(M_2 = \frac{M_1V_1}{V_2}\)

Where,

\(M_1\) = Molarity of LioH = 0.0175

\(V_1\) = Volume of LioH = 18.5 ml

\(V_2\) = Volume of CH3COOH = 29.4 ml

Now, we will put the values into the formula

\(= \frac{0.0175\times 18.5}{29.4}\\\\ = \frac{0.32375}{29.4}\)

Which gives result

= 0.011 M

Therefore for computing the molarity of the CH3COOH solution we simply applied the above formula.

Answer: 0.11

Explanation:

Answer:

D. Ester

Polyesters are defined as (snooze alert!) long-chain polymers chemically composed of at least 85 percent by weight of an ester and a di-hydric alcohol and a terephthalic acid. The term refers to many (poly) esters (the building block compound—many fats and fragrances are esters).

Manufactured cellulose fibers come from plants that are processed into a pulp and then extruded in the same ways that synthetic fibers like polyester or nylon are made. Rayon or viscose is one of the most common "manufactured" cellulose fibers, and it can be made from wood pulp.

Answer:

natural selection

Explanation:

Answer:

chemical reactions which proceed with the release of heat energy are called exothermic reactions

To determine if a solution prepared by adding 0.25 g of KHT (potassium hydrogen tartrate) in 50 ml of water forms a saturated solution, we need additional information such as the solubility of KHT in water.

The solubility product constant (Ksp) mentioned in part (g) is a measure of the solubility of a compound. However, without knowing the actual solubility of KHT in water, we cannot directly determine if the given solution will be saturated.

To assess if the solution is saturated, we need to compare the concentration of KHT in the solution (determined by its solubility) with the concentration obtained by dissolving 0.25 g of KHT in 50 ml of water.

If the concentration of KHT in the solution exceeds its solubility, the solution would be supersaturated and some of the KHT would likely precipitate out. If the concentration is below the solubility, the solution would be unsaturated and could potentially dissolve more KHT.

Therefore, without the knowledge of the solubility of KHT, we cannot definitively determine if the given solution forms a saturated solution. Additional information regarding the solubility of KHT in water is required to make a conclusion.

In conclusion, the determination of whether a solution prepared with 0.25 g of KHT in 50 ml of water forms a saturated solution depends on the solubility of KHT, which is not provided.

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The theoretical yield of the water in the reaction is 329.4 g.

We know that we can be able to obtain the theoretical yield when we look at the stoichiometry of the reaction that we have here. In this case, it is clear that would need to rely on the reaction equation and it would be our guide.

We have that;

2 moles of hydrogen would produce 2 moles of water

18.3 moles of hydrogen would also produce 18.2 moles of water.

Theoretical yield of water would now be;

18.3 * 18 g/mol

= 329.4 g

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Answer:

3 three

Explanation:

potassium (K), manganese (Mn), and oxygen (O).

Answer:

3 different elements (7 in total as there are 4 oxygens (The answer is either one of these))

Explanation: