Answers
Answer:
1) thiamine pyrophosphate -activation of aldehydes
2) coenzyme A -acyl group transfer
3) biotin -CO2 activation/transfer
4) NAD -oxidation/reduction
Explanation:
1. Thiamine pyrophosphate: This is a derivative of Vitamin B1 also known as thiamine. It contains a pyrimidine group linked to the thiazole ring. This connection is further linked to the pyrophosphate group. It functions as a coenzyme in all reactions involving alpha-keto acids. This produces activated aldehydes that could be subject to oxidation.
2. Coenzyme A: This cofactor is a thiol that reacts with carboxylic acids to form thioesters. In so doing, it carries the acyl group. In this condition, it can also be referred to as acyl CoA.
3. Biotin: Also known as Vitamin B7, biotin consists of an ureido ring merged with tetrahydrothiophene. The ureido ring contains the CO2 that can be transferred or activated. Five carboxylase enzymes use biotin as a cofactor in processes such as fat synthesis, glucose generation and the breakdown of sugar.
4. NAD: Nicotinamide adenine dinucleotide consists of two dinucleotides connected to each other at their phosphate groups. NAD exists in two states which are the NAD+ and NADH states. These two states serve as oxidizing and reducing agents respectively. The oxidizing agent becomes reduced to NADH after accepting electrons from other compounds. NADH donates an electron and becomes oxidized to NAD+.
Related Questions
What type of reaction is this? Pb + 2NaCl → PbCl2 + 2Na
Answers
Give one example of a question that science could test. Then, explain in your own words why it is an example of a scientific question. Please!
Answers
Answer:
Questions are an essential part of science. ... They state the final question in a way that can be answered by investigation or experiment. A good scientific question is: “What effect does the pH of water have on radish seed germination?” Good scientific questions are defined, measurable, and controllable.
What is 87000000000000 written in scientific notation
Answers
Answer:
8.7 × 10 13
Explanation:
In lab you measure out 95.12 grams of C4H8O4 for an experiment. How many mol is this? Give your answer to 2 decimal spaces.
Answers
The molar mass of the compound C₄H₈O₄ is 120 g/mol. Then the number of moles of this compound in 95.12 g is 0.79 moles.
What is molar mass ?One mole of every substance contains 6.022 × 10²³ atoms or molecules. This number is called Avogadro number. Thus, one mole of every element contains Avogadro number of atoms.
Similarly one mole of every compound contains Avogadro number of molecules. The mass of one mole of a compound is called its molar mass.
molar mass of C₄H₈O₄ = 120 g/mol (C =12g, O= 16g, H =1 g).
then, number of moles in 95.12 g = given mass/molar mass
no.of moles = 95.12 g /120 g/mol = 0.79 moles.
Therefore, the number of moles of the compound in 95.12 g is 0.79 moles.
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HCl + Fe + ____ + H²
Simple Way.
Hydrochloric acid + iron --> ______ + hydrogen gas.
• Answer this question, only if you know.
• Misuse of points will cost a report.
Answers
Answer:
This is a correct answer. 2HCL + Fe = FeCl2 + H2
Which one of the following pairs cannot be mixed together to form a buffer solution?
a)C5H5N, C5H5NHCl
b)HC2H3O2, NaOH (C2H3O2- = acetate)
c)KOH, HI
d)NH2CH3, HCl
e)NaClO, HNO3
Answers
It is impossible to combine KOH and HI to create a buffer solution.
What is a buffer solution?A buffer solution, also referred to as a pH buffer or hydrogen ion buffer, is an aqueous mixture of a weak acid and its conjugate base, or vice versa. The pH scarcely changes at all when a small amount of a strong acid or basic is added to it. Buffer solutions are used in a wide range of chemical processes to keep pH values almost constant. Buffering is used by many living systems to regulate pH in the natural world. For instance, the bicarbonate buffering system regulates the pH of blood, and bicarbonate also acts as a buffer in the ocean.
The pH of a solution containing a buffering agent can only fluctuate within a specific range, regardless of what else may be in the solution. This is necessary for the enzymes in biological systems to function properly. For instance, the primary mechanism for maintaining the blood's pH between 7.35 and 7.45 is a blend of carbonic acid and bicarbonate found in the plasma component of human blood. Outside of this exact pH range, metabolic diseases called acidosis and alkalosis that finally end in mortality rapidly develop if the necessary buffering capacity is not immediately restored.
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Fill in the blank for the following statement: ________ is the movement of rocks, sand, or materials from a place?
Answers
Answer:
Erosion.
Explanation:
It can be as small as a grain of sand or as large as a boulder. Sediment moves from one place to another through the process of erosion. Erosion is the removal and transportation of rock or soil. Erosion can move sediment through water, ice, or wind.
In a titration, you start with 0.05 M sodium hydroxide (NaOH) and slowly add it to 40 mL of HC1 with an unknown concentration. What is the original concentration of the HC1 if you add a total of 15.4 mL of sodium hydroxide to the HC1 to achieve pH =7?
Answers
Answer:
The original concentration of the HCl is: 0.01925 M
Explanation:
Equation:
HCl+NaOH-------> NaCl+H₂O
Volume of NaOH added = 0.05 M
No of moles of NaOH = 15.4 mL \(x\frac{1 L}{1000 mL} x\frac{0.05 mol NaOH}{L}\)
= 0.00077 mol NaOH
Then,
Volume of HCl solution = 40 mL x 1/1000 mL
= 0.0400 L
Therefore,
Concentration of HCl = 0.00077 mol/0.0400 L
= 0.01925 M
Now, to find the pH:
pH = -log₁₀[H⁺]
= -log₁₀(2x10⁻⁶)
= 5.7
In a sample of rock, it is found that 20% of the uranium-238 has decayed into lead-206. Using the graph on page 253, estimate the age of the rock if the half-life of uranium-238 is 4.47 Billion years.
Answers
Answer: 20.9 billion years.
Explanation: To estimate the age of the rock, we can use the fact that the half-life of uranium-238 is 4.47 billion years. This means that half of the uranium-238 in the rock would have decayed into lead-206 after 4.47 billion years, and half of what remains would decay in the next 4.47 billion years, and so on.
If 20% of the uranium-238 in the rock has decayed into lead-206, then 80% of the original uranium-238 is still present in the rock. This means that the rock has gone through one half-life of uranium-238 decay, and we can estimate its age by using the graph on page 253.
According to the graph, the ratio of lead-206 to uranium-238 after one half-life is approximately 0.027. This means that the rock contains 0.027 times as much uranium-238 as it did originally, and the remaining 80% of the uranium-238 corresponds to 0.8 times the original amount.
Therefore, we can estimate the original amount of uranium-238 in the rock as follows:
Original amount of uranium-238 = (0.8) / 0.027 = 29.63 times the current amount
Next, we can use the fact that each half-life corresponds to a reduction in the amount of uranium-238 by a factor of 2, to estimate the number of half-lives that have passed since the rock formed:
Number of half-lives = log2(29.63) = 4.88
Finally, we can estimate the age of the rock as follows:
Age of the rock = (4.88) x (4.47 billion years per half-life) = 20.9 billion years
Therefore, we can estimate that the age of the rock is approximately 20.9 billion years.
Jupiter's mass is more than _________ the mass of the other planets put together.
Answers
Answer:
2.5 times
Explanation:
Jupiter's mass is 2.5 times that of all the other planets in the Solar System combined—this is so massive that its barycenter with the Sun lies beyond the Sun's surface at 1.068 solar radii from the Sun's center.
Explanation: I’ve gotten asked this question in class before
Mikael runs with a speed of 3 m/s for 45 seconds. How far does Mikael run? A. 15m. B. 30m. C. 90m. D. 135
Answers
Answer:
The answer is option DExplanation:
To find the distance covered by an object given it's velocity and time taken we use the formula
distance = velocity × timeFrom the question
velocity = 3 m/s
time = 45 s
The distance covered is
distance = 3 × 45
We have the final answer as
135 mHope this helps you
Answer:
D.) 135
Explanation:
Hope this helps!!! ( Sorry if my handwriting is bad, I´m working on improving it!)
How do you turn the numbers
4.5 x 10^6
3.17 x 10^4
9.01 x 10^-4
8.6 x 10^-7
3.1 x 10^3
3.1 x 10^-3
7.9 x 10^6
2 x 10^1
2 x 10^-1
1.1 x 10^3
From scientific notation into standard notation.
Answers
31,700
0.000901
0.00000086
3,100
7,900,000
20
0.2
1,100
To get the answers you just have to move the decimal to the right how ever many times the power of 10 is (if the number is negative you move the decimal to the left) eg. 2 x 10^1: you move the decimal to the right once and it becomes 20. eg. 2 x 10^-1 you move the decimal to the left once and it becomes 0.2.
I hope that helped
Is energy absorbed or released during cellular respiration?
Absorbed
Released
Answers
Answer:
Released
Explanation:
they convert into a form of energy that can be used by cells
Limiting reactant question!
Answers
The limiting reactant is N₂O₄ and the mass of N₂ formed from the reaction is 45.7 g (Option C)
How do I determine the limiting reactant?The limiting reactant can be obtained as illusrated below:
N₂O₄ + 2N₂H₄ -> 3N₂ + 4H₂O
Molar mass of N₂O₄ = 92.02 g/molMass of N₂O₄ from the balanced equation = 1 × 92.02 = 92.02 gMolar mass of N₂H₄ = 32.05 gMass of N₂H₄ from the balanced equation = 2 × 32.05 = 64.1 g Molar mass of N₂ = 28.02 gMass of N₂ from the balanced equation = 3 × 28.02 = 84.06 gFrom the balanced equation above,
92.02 g of N₂O₄ reacted with 64.1 g of N₂H₄
Therefore,
50 g of N₂O₄ will react with = (50 × 64.1) / 92.02 = 34.83 g of N₂H₄
From the above calculation, we can see that only 34.83 g of N₂H₄ out of 45.0 g reacted.
Thus, the limiting reactant is N₂O₄
How do I determine the mass of N₂ formed?The limiting reactant shall be used in this case in order to obtain a maximum yield of N₂. Details below:
92.02 g of N₂O₄ reacted to produce 84.06 g of N₂
Therefore,
50 g of N₂O₄ will react to produce = (50 × 84.06) / 92.02 = 45.7 g of N₂
Thus, the mass of N₂ formed is 45.7 g
Therefore, the correct answer to the question is (Option C)
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. A room temperature white solid is mixed with a room temperature clear liquid resulting in a clear, colorless liquid that is hot to the touch. Has a chemical reaction occurred? Why or why not? (It may be possible to argue in favor of yes OR no. Defend YOUR answer.)
Answers
Yes, the chemical reaction occurs because new substance is formed and heat energy is released.
What is chemical reaction?Chemical reaction is a process in which one or more substances i.e. the reactants, are converted to one or more different substances i.e. the products so we can conclude that the chemical reaction occurs because new substance is formed and heat energy is released.
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How many atoms are in 55g of H2SO4?
3.4 atoms
2.58 atoms
04.14 atoms
98.1 atoms
Answers
Answer: 3.4 atoms
Explanation: hope this helps you!!
What is a Pure element ?
Answers
WILL MARK BRAINLIEST
What occurs when energy is added or removed from an object or a system by an outside agent?
Potential Energy
Kinetic Energy
Elastic Potential Energy
Thermal Energy
Work
Answers
Answer:
Its Thermal Energy
Explanation:
what is stoichiometry?
Answers
Answer:
the relationship between the relative quantities of substances taking part in a reaction or forming a compound, typically a ratio of whole integers.
Explanation:
G o o g l e
Explanation:
Stoichiometry is the calculation of reactants and products in chemical reactions in chemistry.
a martian that has lived all its life on Mars finally makes a trip to earth. it has a hard time moving around, and objects seem much heavier than on mars. why?
Answers
Answer:
Explanation:
the martian has a hard time moving and a hard time lifting things because the movement and weight of things are very much different then they are on mars. so everything will feel different in movement and weight to the martian when it feels normal to us
Determine the oxidation numbers of all of the elements in the unbalanced reactions. Then, balance each redox reaction in basic solution. #1 Please!
Answers
1. According to the explanation given in our previous session, in this question we have the following reaction:
MnO4- + C2O42- -> MnO2 + CO2
O = 2-
MnO4- = we have an overall charge of -1, 4 oxygens, therefore we will have -8, and Mn must be = 7+
Mn (reactant) = 7+
C2O42- = overall charge -2, 4 oxygens = -8, therefore carbon must give a final value of +6, since we have 2 carbons, the oxidation number will be +3
C (reactant) = 3+
Mn (products) = 4+
C (products) = 4+
Now for the balanced redox equation:
2 MnO4- + 3 C2O42- + 4 H2O -> 2 MnO2 + 6 CO2 + 8 OH-
A medium-sized banana (118g) on average contains 422 mg of potassium - a nutrient needed to maintain fluid balance. If someone eats a medium-sized banana each day for a week, how many total grams of potassium are ingested in that week?
Answers
Answer:
2.954grams of pottasium for that week
Explanation:
According to this question, a medium-sized that weighs 118grams contains 422 milligrams (mg) of potassium nutrient.
If someone eats a medium-sized banana each day for a week, this means that the person has consumed 422mg of pottasium that day.
Since there are 7days in a week, the person will consume 422 × 7 = 2954 mg of pottasium that week.
The question asks for the total pottasium intake in grams for that week, hence, we need to convert 2954 milligrams to grams.
1000mg = 1 g
Hence, 2954mg will be 2954/1000
= 2.954grams
Therefore, 2.954grams of pottasium are ingested by that person that week.
is paint solution, suspension, colloid?
Answers
Answer:
Collid
Explanation:
Answer might be that
Identify a social program that is available only to low-income individuals
Select one:
a. Medicare
b. Social Security
c. the public health insurance option
d. the Supplemental Nutrition Assistance Program
Answers
Answer:
I believe it it is c
Explanation:
I dont knkw what els e to add so yea
Why is knowing the concentration of solutions important in the real world? Give an example to help you explain your answer.
Answers
Explanation: The concentration of a solution helps us to determine the collision speed between particles in a molecule or compound. Knowing the concentrations of components in solutions can help determine the health of the world.
PLEASE ANSWER QUICKLY!!
100 NaNO3
90
Solute per 100 g of H₂O (g)
0,80
NH,CI
70 KNO3
60
50
40
30
20
10
0
0 10 20 30 40 50 60 70 80 90 100
Temperature (°C)
KCIO3
60 g KNO3 has
been added to
100 g H₂O at
30 °C. What
type of solution
is this?
A. unsaturated
B. saturated
C. supersaturated
Answers
If 60 grams of the substance are added to 100 g of water, the solution can be categorized as supersaturated.
How saturated is this solution?The graph shows the number of grams that can be dissolved in 100 grams of water at different temperatures. In general, solubility increases with temperature.
According to the graph, at a temperature of 30°C, it is possible to dissolve a total of 48 to 49 grams of \(KNO_{3}\). This information implies that if we add 60 grams at this temperature not all the substance would be dissolved, and therefore the solution would be supersaturated.
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Which branch of chemistry is concerned with the chemical processes that occur within living organisms? A. Physical B. Inorganic C. Biochemistry D. Organic
Answers
Answer: C. Biochemistry
Explanation:
Merriam-Webster Dictionary defines Biochemistry as:
"chemistry that deals with the chemical compounds and processes occurring in organisms"
“Definition of BIOCHEMISTRY.” Merriam-Webster.com, 2018, www.merriam-webster.com/dictionary/biochemistry.
How many liters of propane gas (C3H8) will undergo complete combustion with 37.0 L of oxygen gas? (20pts) C3H8(g) + 5O2(g) ⇨ 3CO2(g) + 4H2O(g)
Answers
Since we are working with gases, the liters can be taken as moles.
According to the given balanced reaction, 1 liter of propane reacts completely with 5 liters of oxygen, use this ratio to find the liters needed to react with 37 liters of oxygen:
\(37LO_2\cdot\frac{1LC_3H_8}{5LO_2}=7.4LC_3H_8\)It means that 7.4 liters of propane will be needed.
why are scientific methods important in the study of science
a.they are useful only for teaching students about science
b.they help scientists understand complex ideas and objects that arent easy to handle
c.they enable scientists to popularize their work in society
d.they are necessary to conduct the peer review process
e.they are necessary for turning a hypothesis into a law
Answers
Answer:rrrrrrrrrrrrrrrrrrr
Explanation:
rrrrrrrrrrrrrrrrrrrrrrrr
Law of Universal Gravitation (what factors affect gravity and how?)
Answers
Explanation:
Hey there!
According to the law of gravitation, the factors that affects the gravity are:
Mass of the heavenly bodies.Distance from the centre of the body to next body.Mass of heavenly bodies:The mass of heavenly bodies affect the gravity. We know that gravity is directly proportional to the mass of heavenly bodies. so, when the mass is more there is more gravity and where there is less mass there is less gravity.
Distance from the centre of the body to next body: It is one of the factor to influence gravity. When there is more distance there is less gravity and where there is distance more force is there. Is means gravity is inversely proportional to the distance between the bodies.
Hope it helps...