Answer: It would be .250
Explanation:
The mechanism of glyceraldehyde-3-phosphate dehydrogenase does NOT involve
A. phosphorylation of the substrate using ATP.
B. oxidation and phosphorylation of the substrate.
C. a covalent intermediate.
D. an active site histidine to serve as a proton acceptor
The mechanism of the glyceraldehyde-3-phosphate dehydrogenase does not involve a covalent intermediate. The correct option is C.
Glyceraldehyde-3-phosphate dehydrogenase is the enzyme that is involved in the glycolytic pathway and it will converts the glucose into the pyruvate. The conversion of the glyceraldehyde-3-phosphate (G3P) into the 1,3-bisphosphoglycerate (1,3-BPG) and will coupled with the reduction of the NAD+ to NADH. The mechanism of the GAPDH involves the several steps, but it will not involve the phosphorylation of the substrate using the ATP.
The enzyme uses the covalent intermediate to the transfer the hydride ion from the G3P to the NAD+, forming the NADH. The option C is correct.
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How do you think the atomic radii will change as electrons are added to a shell?
Answer:
As electrons are added to the valence shell, an extra proton (i.e fundamental, positively charged nuclear particle) is added to the element's nucleus. As electrons add and Z the atomic number increases 1 by 1, nuclear charge WINS, and electronic radii contract.
Explanation:
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The mass of oxygen gas produced, given that 15.8 g of potassium permanganate is heated until no more oxygen gas is given off is 1.6 g
How do i determine the mass of oxygen produced?From the question given, the following data were obtained:
Mass of potassium permanganate = 15.8 gMass of remaining material after heating = 14.2 gMass of oxygen gas =?The mass of oxygen gas produced from the reaction can be obtained as follow:
Mass of potassium permanganate = Mass of remaining substance + mass of oxygen
Inputting the given parameters, we have:
15.8 = 14.2 + mass of oxygen
Collect like terms,
Mass of oxygen = 15.8 - 14.2
= 1.6 g
Thus, we can conclude that the mass of oxygen gas produced from the reaction is 1.6 g
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ON A TIMER!!! PLZ HELP ME!!!
Consider the reaction below. *Image* Which is the net ionic equation for the reaction?
Answer:
C2H3O2^-(aq) + H^+ —> HC2H3O2
Explanation:
The following equation was given in the question:
Na^+ + C2H3O2^-(aq) + H^+ Cl^- —> Na^+ + Cl^- + HC2H3O2
Now, to obtain the net ionic equation, we simply cancel out the ions common to both side of the equation.
A careful observation of the equation above, shows that sodium ion, Na^+ and chloride ion, Cl^- are common to both side of the equation.
Therefore, to obtain the net ionic equation, we simply cancel out Na^+ and Cl^- from both side of the equation. This is illustrated below:
Na^+ + C2H3O2^-(aq) + H^+ Cl^- —> Na^+ + Cl^- + HC2H3O2
C2H3O2^-(aq) + H^+ —> HC2H3O2
Therefore, the net ionic equation is
C2H3O2^-(aq) + H^+ —> HC2H3O2
which solution has no effect on litmus?
1) acidic
2) basic
3) alkaline
4) neutral
You use 50.00 mL of a 12.0 M solution of HCl solution to make a 500.00 mL solution. What is the concentration of the new solution? *
Answer:
1.2 M
Explanation:
If you use the dilution equation (M1V1=M2V2), you end up with (50)(12)=(500)(M2), and when you solve for M2 you get 1.2 M.
what carbonyl compound and alcohol are formed by hydrolysis of each acetal
Acetals can be hydrolyzed using catalytic acid to produce a carbonyl compound and alcohol. If the acid concentration is increased, acetal can be hydrolyzed back to its initial aldehyde or ketone form.
This mechanism occurs in the opposite direction of the acetal formation mechanism. The hydrolysis of each acetal generates a carbonyl compound and an alcohol.What are Acetals?Acetals are organic compounds that are formed by the reaction of an aldehyde or ketone with two molecules of alcohol, and they have the following general structure: R1R2C(OR')2.Acetals can be regarded as derived from hemiacetals, which are formed by the reaction of an aldehyde or ketone with one molecule of alcohol.The carbonyl carbon in an acetal is bonded to two alkoxide (OR) groups, while the carbonyl carbon in a hemiacetal is bonded to only one. As a result, acetals are more stable than hemiacetals. Acetals are widely used in organic synthesis, including as protecting groups for carbonyl groups in reactions that would otherwise destroy them.Example:Acetal hydrolysis occurs when an acid catalyst is used to cleave the two ether bonds in the molecule. When an acetal is hydrolyzed with an acid catalyst such as H2SO4, a carbonyl compound and an alcohol are formed.Example:H2SO4 is added to the acetal, which hydrolyzes it, producing an aldehyde or ketone and two alcohol molecules. For example, if dimethyl acetal is hydrolyzed, it will yield acetone and two methanol molecules.
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distance in space is measured in
Which is considered a chemical mutagen Brainly?.
Option B: tobacco is considered a chemical mutagen.
The term "mutagens" refers to chemical or physical substances that have the power to alter an organism's DNA (deoxyribonucleic acid), hence raising the rate of mutation in the population. Chemicals that cause genetic material to mutate are known as chemical mutagens. Tobacco is regarded as a chemical mutagen because it alters a person's DNA and causes cancer to develop. The answer is therefore "tobacco."
Up to 18% of the 1239 chemicals in the test dataset that were also found in tobacco products have the potential to cause mutagenesis. Some of the harmful substances found in tobacco are also found in the plant itself.
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Complete question is:
Which is considered a chemical mutagen?
tanning beds
tobacco
X-rays
precious metals
when a piece of metal was heated in a flame and then dropped into 2.00 x 102 ml of water at 22.5°c, the temperature of the water rose to 38.7°c. how much heat was transferred from the metal to the water?
The amount of heat transferred from the metal to the water can be calculated using the equation Q = mcΔT, where Q represents the heat, m is the mass of water, c is the specific heat capacity of water, and ΔT is the change in temperature.
To determine the amount of heat transferred from the metal to the water, we can use the equation Q = mcΔT. In this case, the heat transferred is the unknown variable we need to calculate. The mass of water, denoted by m, is given as 2.00 x 10^2 ml, which can be converted to grams by considering that 1 ml of water has a mass of 1 gram. Therefore, the mass of water is 200 grams.
The specific heat capacity of water, represented by c, is a known constant and is typically 4.18 J/g°C. Finally, the change in temperature, ΔT, is calculated by subtracting the initial temperature of the water (22.5°C) from the final temperature (38.7°C).
Plugging in the values into the equation Q = mcΔT, we can calculate the heat transferred from the metal to the water. Substituting m = 200 g, c = 4.18 J/g°C, and ΔT = (38.7°C - 22.5°C), we can calculate the value of Q.
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The health care provider orders KCL 30 mEq. The medication is available in a unit dose package labeled: KCL 60 mEq/10 mL. The medicine cup is marked teaspoons. How many teaspoons will the nurse administer? tsp
the nurse will administer approximately 1 teaspoon (tsp) of the medication.1 teaspoon (tsp) is approximately equal to 5 mL.
How many teaspoons will the nurse administer?To determine the number of teaspoons the nurse should administer, we need to calculate the equivalent volume of 30 mEq of KCL using the provided concentration of 60 mEq/10 mL.
First, we'll find the ratio of milliequivalents (mEq) to milliliters (mL) in the given concentration:
60 mEq / 10 mL = 6 mEq/mL
Next, we can set up a proportion to find the volume (in mL) that corresponds to 30 mEq:
6 mEq/mL = 30 mEq / X mL
To solve for X, we can cross-multiply:
6X = 30 * 1
6X = 30
X = 30 / 6
X = 5 mL
Since the medication cup is marked in teaspoons, we need to convert 5 mL to teaspoons.
1 teaspoon (tsp) is approximately equal to 5 mL.
Therefore, the nurse will administer approximately 1 teaspoon (tsp) of the medication.
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How do the ramp heights of the different objects compare? How does the ramp height relate to the strength of the frictional force between the book and the object?
The height of a ramp does not directly determine the strength of the frictional force between a book and an object.
How do they compare?The strength of the frictional force between a book and an object is not directly influenced by the height of a ramp. The nature of the surfaces in contact, the force forcing the surfaces together (normal force), and the coefficient of friction are some of the variables that affect the frictional force between two surfaces.
The coefficient of friction between the book and the object plays a major role in determining the strength of the frictional force.
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9. What is the pH of a 0. 25 molar HBz (benzoic acid) solution. Ka HBz=6. 5 x10-5
The pH of a 0.25 molar HBz (benzoic acid) solution is approximately 2.61.
To calculate the pH of the solution, follow these steps:
1. Write the dissociation equation for benzoic acid: HBz ⇌ H⁺ + Bz⁻.
2. Set up an ICE table (Initial, Change, Equilibrium) to determine the equilibrium concentrations of the species involved.
3. Write the expression for Ka: Ka = [H⁺][Bz⁻]/[HBz].
4. Substitute the equilibrium concentrations into the Ka expression and solve for x, representing the [H⁺] concentration.
5. Calculate the pH using the formula: pH = -log[H⁺].
Initial concentrations are [HBz] = 0.25 M, [H⁺] = 0 M, and [Bz⁻] = 0 M. The change in concentration is -x for HBz, +x for H⁺, and +x for Bz⁻. Thus, at equilibrium, [HBz] = 0.25 - x, [H⁺] = x, and [Bz⁻] = x. The Ka expression becomes (6.5 × 10⁻⁵) = x²/(0.25 - x). After solving for x, we find x ≈ 0.00256 M. Finally, pH = -log(0.00256) ≈ 2.61.
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Chemistry help is needed !! Please no fake answers
Thermometer 2 had ethanol as the thermometric liquid because the change in volume with an increase in temperature was smaller compared to Thermometer 1 containing 1-propanol due to stronger intermolecular forces in ethanol.
Between ethanol and 1-propanol, which has the highest change in volume with an increase in temperature?The change in volume of a liquid with an increase in temperature is characterized by its coefficient of thermal expansion, which is different for different liquids.
Ethanol has a coefficient of thermal expansion of about 1.2 x 10⁻³ K⁻¹, while 1-propanol has a coefficient of thermal expansion of about 1.5 x 1010⁻³ K⁻¹. This means that 1-propanol has a higher change in volume with an increase in temperature compared to ethanol. Therefore, 1-propanol has the highest change in volume with an increase in temperature between the two liquids.
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Find the mass of a metal cylinder that has a volume of 652 cm and a density of
21.45 g/cm
Explanation:
Mass = volume × density
Mass = 652 cm³ × 21.45 g/cm³
= 13985.4 g
Explanation:
What is the difference between mass and weight?
\ (•◡•) / Hey There!
Answer ➜ Mass is the amount of matter in a material, while Weight is a measure of how the force of gravity acts upon that mass.
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Answer:
Mass is defined as the amount of inertia (resistance to change in motion) that something has. Weight is how heavy it is. Example: in space, weight does not change, mass does.
Explanation:
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Please help guys
When the nucleus of an atom is split, the release of __1__ produces a __2__ reaction.
1)
A. Protons
B. Chain
C. Nuclei
D. Neutrons
E. Spontaneous
F. Nuclear
G. Electrons
2)
A. Protons
B. Chain
C. Nuclei
D. Neutrons
E. Spontaneous
F. Nuclear
G. Electrons
Explanation:
probably protons would be released and cause a spontaneous reaction
Aluminium is quite abundant in the soils. It can have a beneficial or toxic effect on plants depending on its concentration. Explain, with the use of equations, why A|3+ is unavailable to plants at high pH (high
concentration of hydroxide ions).
At high pH levels (high concentration of hydroxide ions), aluminum ions (Al3+) become unavailable to plants.
In soils, aluminium can exist in the form of aluminium ions (Al3+). The solubility of aluminium ions is influenced by the pH of the soil solution. At high pH levels, there is an abundance of hydroxide ions (OH-) in the soil solution. When hydroxide ions are present in high concentrations, they react with aluminium ions to form insoluble aluminium hydroxide \((Al(OH)_3)\). The reaction can be represented by the equation:
\(Al_3+ + 3OH - > Al(OH)_3\)
The formation of aluminium hydroxide reduces the availability of aluminium ions for uptake by plant roots. This is because the aluminium hydroxide precipitates and forms solid particles that are not easily accessible to plant roots. Consequently, plants are unable to absorb aluminium in the form of Al3+ when the soil pH is high.
In summary, at high pH levels, the presence of hydroxide ions in the soil solution leads to the formation of insoluble aluminium hydroxide, rendering aluminium ions (Al3+) unavailable to plants.
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A formula for the relationship between weight and blood pressure in children is given by the formula below where P(x) is measured in millimeters of mercury and x is measured in pounds. Use the formula to answer the questions. P(x)=17.9(9+lnx)10≤x≤100 What is the rate of change of blood pressure with respect to weight at the 60-pound weight level? The rate of change at the 60-pound weight level is approximately mm/ pound. (Do not round until the final answer. Then round to the nearest hundredth as needed.) What is the rate of change of blood pressure with respect to weight at the 70-pound weight level? The rate of change at the 70-pound weight level is approximately mm/ pound. (Do not round until the final answer. Then round to the nearest hundredth as needed.)
The formula for the relationship between weight and blood pressure in children is:
P(x) = 17.9(9 + ln x) 10 ≤ x ≤ 100To find the rate of change of blood pressure with respect to weight at the 60-pound weight level.We differentiate the above function with respect to x Therefore:
dP/dx = 17.9(1/x)Now substituting x = 60 in the above equation, we get: dP/dx = 17.9(1/60) dP/dx = 0.298The rate of change at the 60-pound weight level is approximately 0.30mm/ pound.Rate of change at the 70-pound weight level:
Similarly, we can find the rate of change at 70-pound weight level, by differentiating the function P(x) with respect to x. Therefore, dP/dx = 17.9(1/x)Now substituting x = 70 in the above equation, we get:dP/dx = 17.9(1/70) dP/dx = 0.2557The rate of change at the 70-pound weight level is approximately 0.26mm/ pound.About BloodBlood is a fluid found in all living things that functions to deliver substances and oxygen needed by body tissues, transports chemical products of metabolism, and also acts as the body's defense against viruses or bacteria. Blood has the function of regulating acid and base balance. ,transports O2, carbohydrates, and metabolites, regulates body temperature by conduction or conduction, carries body heat from heat production centers (liver and muscles).
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How many moles are there in 8.25 x 10^26 molecules of methane (CH4)?
Answer:
i dont know
Explanation:
because i dont know 45
elements in group ________ have a np6 electron configuration in the outer shell.
Elements in group 18 have a np6 electron configuration in the outer shell.The elements in group 18 are known as noble gases because they are inert (non-reactive) due to their electronic configurations.
The electronic configuration of all noble gases follows a pattern of ns²np⁶ (where n is the energy level) in their outermost shell.The ns²np⁶ electronic configuration is indicative of having a completely filled p orbital. Since the p orbital can accommodate six electrons, the noble gases have a completely filled outer shell with eight valence electrons, giving them remarkable stability in nature. This stability is the reason why they are unreactive and do not typically form compounds. In addition, because they have a complete outer shell, they are less likely to lose or gain electrons to form ions and enter into chemical reactions.In conclusion, elements in group 18 have a np6 electron configuration in the outer shell.
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. In which reaction is nitric acid acting as an oxidising agent? A. CuO + 2HNO3 → Cu(NO3)2 + H2O B. Cu + 4HNO3 → Cu(NO3)2 + 2H2O + 2NO2 C. Na2CO3 + 2HNO3 → 2NaNO3 + H2O + CO2 D. NaOH + HNO3 → NaNO3 + H2O
Answer:
B. Cu + 4HNO3 → Cu(NO3)2 + 2H2O
Explanation:
A redox reaction is one in which oxidation and reduction reactions are occuring simultaneously.
In a redox reaction, an oxidizing agent is reduced ( its oxidation state decreases) whereas a reducing agent is oxidized (it's oxidation state increases).
The nitrogen in the nitrate (v) ion, NO3-, exists in the +5 oxidation state. Therefore it would be acting as an oxidizing agent in any reaction in which it's oxidation state becomes less than +5 after the reaction.
Let us then consider each of the reactions:
A. Reaction 1: in this reaction, the oxidation state of nitrogen remains +5 as what is simply an exchange of radicals in a neutralization reaction.
B. Reaction 2: in this reaction, trioxocarbonate (v) acid oxidizes Copper atom to Copper (ii) ion, while itself it is reduced to Nitrogen (IV) oxide. The oxidation state of nitrogen changes from +5 to +4
C. Reaction 3: in this reaction, what occurs is an exchange of radicals by a displacement reaction. The oxidation state of nitrogen remains the same
D. Reaction 4: in the reaction, what occurs is a neutralization reaction, and the oxidation state of nitrogen remains the same.
Therefore, the correct option is B.
A balloon is inflated to 665 mL volume at 27°C. It is then cooled down to -78.5°C. What
is its volume, assuming the pressure remains constant?
Answer:
431 mL
Explanation:
This is a question about the relationship between the volume and temperature of a gas. The volume of a gas is directly proportional to its temperature in kelvins when the pressure is held constant. This relationship is described by Charles’s Law.
To solve this problem, we need to convert the temperatures from degrees Celsius to kelvins by adding 273.15. So 27°C is equivalent to 300.15 K and -78.5°C is equivalent to 194.65 K.
Let’s call the initial volume of the balloon V1 and its initial temperature T1. The final volume of the balloon will be V2 and its final temperature T2. According to Charles’s Law, the relationship between these variables can be expressed as:
V1/T1 = V2/T2
Substituting the known values into this equation, we get:
665 mL / 300.15 K = V2 / 194.65 K
Solving for V2, we find that the final volume of the balloon is approximately 431 mL.
. which type of bond exemplifies a weak chemical bond? covalent bonds in solution hydrogen bonds in solution ionic bonds in solids nonpolar covalent bonds in solids
Hydrogen bond exemplifies a weak chemical bond.
Hydrogen bond is weak because electrons are not transported to form opposing, attracting charges as they are in ionic bonds or shared as they are in covalent bonds.when hydrogen is covalently bonded to a more electronegative atom, that atom pulls the hydrogen's electron away from it, causing it to become attracted to nearby electronegative atoms with unpaired electrons. As a result, hydrogen has a slight positive charge.The electrostatic contact between the atoms caused by the gain or loss of electrons results in the formation of ionic bond which is the strongest bond. The sharing of electrons or the overlapping of two atomic orbitals results in the formation of covalent bonds.When two atoms share electrons equally, a non-polar covalent bond is created.Therefore, among all these bonds hydrogen bond is the weakest.
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Considering the passage about crude oil, why is distillation the main process for separating the contents of crude oil? Crude oil is a homogeneous mixture. Crude oil is a heterogeneous mixture A major byproduct of crude oil is gasoline.
Answer:
Crude oil is a homogeneous mixture.
Explanation:
I got it right.
Answer: Crude oil is a homogeneous mixture.
Explanation: im doin edge
Which of the following types of molecules would have the highest capacity to store chemical energy?
a. a two-carbon molecule rich in C-H bonds, such as ethane.
b. a six-carbon molecule rich in C-H bonds, such as a lipid.
c. a two-carbon molecule rich in C-O bonds, such as ethanol.
d. a six-carbon molecule righ in C-O bonds, such as a hexose.
A six-carbon molecule rich in C-H bonds, such as a lipid, would have the highest capacity to store chemical energy.
Chemical energy is stored in the bonds between atoms within a molecule. Molecules that have a high number of C-H bonds, such as lipids, have a higher capacity to store chemical energy than those with fewer C-H bonds.
This is because the C-H bond is a high-energy bond that can release a large amount of energy when broken.
In comparison, molecules that have a higher number of C-O bonds, such as ethanol or a hexose, have lower energy storage capacity. This is because the C-O bond is a lower-energy bond than the C-H bond and releases less energy when broken.
Therefore, a six-carbon molecule rich in C-H bonds, such as a lipid, would have the highest capacity to store chemical energy.
The large number of C-H bonds in lipids allows them to store a significant amount of energy that can be released through metabolism.
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An allele that is not dominant is know as what
Answer:
Recessive
Explanation:
Hope this help I think this is the right answer.
A doctor wants to estimate the mean hdl cholesterol of all 20- to 29-year-old females. How many subjects are needed to estimate the mean hdl cholesterol within 2 points with 99% confidence assuming s = 11. 2 based on earlier studies? suppose the doctor would be content with 90% confidence. How does the decrease in confidence affect the sample size required?.
A confidence level of 99%. necessitates 201 subjects. discovered using the formula (2.575 x 16.5/3)2, where 2.575 is the r t for 99%.
What results from low HDL levels?This study confirmed previous findings showing low HDL saturated fats were linked to an increased risk of dying from cardiovascular causes. In contrast to individuals who had normal levels of HDL cholesterol, there was also an increased chance of dying from cancer and other diseases.
If our HDL is high, should I be concerned?In addition to not protecting you any better, incredibly high HDL levels may even be detrimental. According to one study, those with HDL cholesterol levels exceeding 60 mg/dL had a nearly 50% increased risk of dying from heart disease or having a heart attack.
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Does moisture affect the length of time it takes for mold to grow on bread?
Answer:
it depends on the level of moisture of the bread wet bread molds more quickly than dry bread because mold thrives in damp environments if you didn't experiment and tested one slice of dry bread and one damp slice of the same bread the dampened slice would grow mold much more quickly than the dry one
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a supporter of the phlogiston theory says that when petrol burns in air phlogiston is lost in the air so the mass decreases. Write a letter to this person explaining why the phlogiston theory is wrong
Phlogiston theory is wrong as it states that when petrol burns in air phlogiston is lost in air so the mass decreases but as per law of conservation of mass , mass never increases or decreases rather it is constant.
What is law of conservation of mass?According to law of conservation of mass, it is evident that mass is neither created nor destroyed rather it is restored at the end of a chemical reaction .
Law needs to be modified in accordance with laws of quantum mechanics under the principle of mass and energy equivalence.This law was proposed by Antoine Lavoisier in the year 1789.
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