The energy in ATP is used to fuel the movement of kinesin motor proteins along microtubules. Sort each of the following events into the proper category, indicating whether they occur on the leading or trailing head of kinesin.
-ATP hydrolysis
-ADP release
-ATP binding
-Pi release
-neck linker zippers to catalytic core of head group
Answers
The energy in ATP is used to fuel the movement of kinesin motor proteins along microtubules. Sort each of the following events into the proper category, indicating whether they occur on the leading or trailing head of kinesin.
-ATP hydrolysis
-ADP release
-ATP binding
-Pi release
-neck linker zippers to catalytic core of head group
-Leading head: ADP release, ATP binding, and neck linker zippers to catalytic core of head group
-Trailing head: ATP hydrolysis, and Pi release
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Related Questions
hypothesize why carbohydrates are found in plant cell walls
Answers
Answer:
Plants can split starch into it's simpler glucose units for use as energy when needed. Cellulose is known as a structural carbohydrate because of the fibers formed by it's molecules. It is the major component of plant cell walls and comprises over half of the carbon found on planets.
Explanation:
I majored in Chemistry
How is solar heat collected?
Please Help
I will give you Brainlist
Answers
Answer:
By solar panels
Explanation:
The outermost electron of boron experiences a lower effective nuclear charge than carbon. Why?.
Answers
The outermost electron of boron experiences a lower effective nuclear charge than carbon because there is no additional number of shells and carbon has more protons and electrons than boron.
The effective nuclear charge is the amount of charge experienced by an electron taking into account any shielding effects from other electrons. This shielding effect occurs when electrons and shells come between the nucleus and the electron of interest, which causes the effective nuclear charge between the outermost electron and the nucleus to reduce. The more the intervening shells, the more the shielding effect.
However, both carbon and boron have the same number of shielding electrons, because no additional shells come in between. Hence, the main factor that increases the effective nuclear charge between boron and carbon is the increase in the number of protons and electrons.
Boron has an atomic number of 5, meaning that it has 5 electrons and 5 protons, while carbon has an atomic number of 6, so it has 6 electrons and 6 protons. Since opposite charges attract, more electrons and protons means there is an increase in the attraction between the nucleus and the outermost electrons in carbon than in boron; hence, a higher effective nuclear charge.
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Come up with 2 examples of derived units from everyday life.
Answers
Answer:
answer
Explanation:
Area : Square Meters,
Volume : Cubic Meters,
Density : Kilograms per Meter Cube,
Velocity : Meters per Second Squared,
Force : Newtons (Mass multiplied by Acceleration or Mass multiplied by Displacement divided by Time squared)…..
If 60.2 g of Hg combines completely with 24.0 g of Br to form a compound. What is the percent composition of Hg in the compound
Answers
The percent composition of Hg in the compound is approximately 49.94%.
To find the percent composition of Hg in the compound, we need to calculate the molar masses of Hg and the compound and then use the mass of Hg to determine its percentage.
The molar mass of Hg (mercury) is approximately 200.59 g/mol.
First, we need to determine the number of moles of Hg and Br in the compound:
Moles of Hg = mass of Hg / molar mass of Hg
= 60.2 g / 200.59 g/mol
= 0.2997 mol
Moles of Br = mass of Br / molar mass of Br
= 24.0 g / 79.90 g/mol
= 0.3004 mol
Next, we can calculate the percent composition of Hg in the compound:
Percent composition of Hg = (moles of Hg / total moles of the compound) x 100
= (0.2997 mol / (0.2997 mol + 0.3004 mol)) x 100
= 49.94%
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what is the smallest unit of length
Answers
Answer:
Plank length
Explanation:
The smallest possible size for anything in the universe is the Planck Length, which is 1.6 x10-35 m across.
What is the similarity between teeth and eggshells?
*. Please answer
Answers
Answer: Eggshells have a similar chemical composition to our tooth enamel, making them react similarly with other chemicals. This can help us understand what stains tooth enamel. When we brush an eggshell with fluoridated toothpaste, it strengthens the shell and protects it from acid, just like it does for our tooth enamel
Explanation:
Answer: Eggshells have a similar chemical composition to our tooth enamel, making them react similarly with other chemicals. This can help us understand what stains tooth enamel. When we brush an eggshell with fluoridated toothpaste, it strengthens the shell and protects it from acid, just like it does for our tooth enamel.
if you mistakenly extract the solution first with naoh (aq), and then with nahco3(aq), what results you will observe and why?
Answers
The NaOH extraction step would remove some acidic components, while the NaHCO3 extraction step may have limited effect if the significant acidic components have already been neutralized.
If you mistakenly extract a solution first with NaOH (aq) and then with NaHCO3 (aq), you would observe the following results:
NaOH Extraction:
When NaOH (aq) is added to the solution, it will react with acidic components present in the solution, such as carboxylic acids, phenols, or acidic functional groups. This reaction results in the formation of water-soluble salts or compounds, which will dissolve in the aqueous NaOH solution. As a result, the acidic components will be removed from the solution.
NaHCO3 Extraction:
When NaHCO3 (aq) is added to the remaining solution from the previous step, it will react with acidic components that were not neutralized by NaOH. NaHCO3 is a weaker base compared to NaOH and is primarily used to extract acidic compounds such as phenols and carboxylic acids. These acidic components will react with NaHCO3 to form water-soluble salts, which will dissolve in the aqueous NaHCO3 solution.
However, if NaOH is mistakenly used first, it is possible that some acidic components in the solution may have already reacted and been removed in the previous step. Therefore, the NaHCO3 extraction step may not yield significant additional changes or observable results.The results of mistakenly extracting the solution first with NaOH (aq) and then with NaHCO3 (aq) would depend on the nature and concentration of the acidic components present in the solution.
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if a molecule contains 4 elements of unsaturation (degree of unsaturation) and 1h nmr peaks are between 7.0 - 8.0 ppm, what structural group is likely to be present?
Answers
A molecule's structure is likely to contain numerous double bonds, triple bonds, or rings if it has four unsaturation components. These unsaturations may be connected to different functional entities or structural elements.
The following functional groupings or structural elements could be present:
Quatre double bonds. One ring and two double bonds, such as an aromatic molecule or cycloalkene One ring and one triple bond, such as an aromatic compound with an alkyne
Four rings, such as those seen in polycyclic aromatic hydrocarbons
In the proton NMR spectrum, there are peaks between 7.0 and 8.0 ppm that are often connected to aromatic protons. In this chemical shift area, aromatic compounds, such as benzene derivatives or other aromatic rings, frequently display proton signals.
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--The complete Question is, If a molecule contains 4 elements of unsaturation, what functional groups or structural features might be present in the molecule, and what would be the likely interpretation of the peaks observed between 7.0 - 8.0 ppm in the proton NMR spectrum?--
WWE Roman reigns vs john cena summerslam 2021 who won?
Answers
Answer:Reigns then hit two Superman punches and a spear to score the pinfall. Result: Roman Reigns defeated John Cena via pinfall to retain the title.
Explanation:
Answer: Roman Reigns I hope this helps
Explanation:
Eleven matches were contested at the event, including one match on the Kickoff pre-show. In the main event, Roman Reigns defeated John Cena to retain SmackDown's Universal Championship.
1) A 0.10 M solution of AgNO3 and a solution of 0.075 M NaCl are mixed. What happens? Ksp (AgCl) = 1.77×10–10 and Ksp (NaNO3) > 1.
Answer Choices:
A) Silver chloride will precipitate, producing a saturated solution of AgCl.
B) Sodium nitrate will precipitate out of solution, leaving AgCl in solution.
C) Silver chloride will precipitate, leaving an unsaturated solution of AgCl.
D) Nothing will happen since NaCl and AgNO3 are both soluble compounds.
E) Nothing happens since the molar solubility of AgCl is higher than the solution concentration.
2. Calculate the pH of a buffer which contains 0.0527 M pyruvic acid and 0.0507 M sodium pyruvate. The Ka of pyruvic acid is 4.1×10–3. Round your answer to two decimal places.
Answers
1) When a solution of AgNO3 and NaCl are mixed, a double replacement reaction occurs, resulting in the formation of AgCl and NaNO3.
The solubility product constant (Ksp) for AgCl is given as 1.77 ×\(10^{-10\). Since Ksp is very small, it indicates that AgCl has low solubility in water. When AgNO3 and NaCl are mixed, AgCl will precipitate out of the solution until it reaches saturation, forming a saturated solution of AgCl.
2) To calculate the pH of the buffer solution, we need to consider the dissociation of pyruvic acid and the conjugate base, sodium pyruvate (CH3COCOO⁻).
CH3COCOOH ⇌ CH3COCOO⁻ + H⁺
The Ka value for pyruvic acid is given as 4.1 × \(10^{-3\).
Since the concentrations of pyruvic acid and sodium pyruvate are given, we can assume that the initial concentration of H⁺ is negligible compared to the concentrations of pyruvic acid and sodium pyruvate.
Using the Henderson-Hasselbalch equation:
pH = pKa + log([A⁻]/[HA])
Substituting the values into the equation:
pH = -log(4.1×10–3) + log(0.0507/0.0527)
pH = -log(4.1×10–3) + log(0.0507) - log(0.0527)
pH = -(-2.39) + (-1.293) - (-1.276)
pH = 2.39 + 1.293 + 1.276
pH ≈ 4.96
Therefore, the pH of the buffer solution is approximately 4.96.
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Please Help Me!!
Question #81
Esters are a class of compounds that impart characteristic odor to some fruits. The ester one toy acetate, composed of carbon, hydrogen, and oxygen, has the odor of bananas. When 7.44 g of this compound undergoes complete combustion, 17.6 g CO2 and 7.22 g H2O are produced.
Answers
C2H3O2 is the empirical equation for acetate. The molar mass of acetate is 59.05 g/mol.
What is mass?Mass is the physical property of a body which measures its inertia, or its resistance to changes in its speed or direction of motion. Mass is often measured in units of kilograms, but can also be measured in other units such as pounds. Mass is different than weight, which is a measure of gravity's effect on a body. Mass is the same on all planets and in all parts of the universe, while the strength of gravity can vary.
To calculate the moles of acetate, we divide the mass of acetate by its molar mass:
7.44 g acetate / 59.05 g/mol = 0.1258 mol acetate
To calculate the moles of CO2 and H2O produced, we divide the mass
of CO2 and H2O by their molar masses:
17.6 g CO2 / 44.01 g/mol = 0.4002 mol CO2
7.22 g H2O / 18.02 g/mol = 0.4011 mol H2O
We can then compare the moles of CO2 and H2O produced with the moles of acetate:
0.1258 mol acetate = 0.4002 mol CO2 + 0.4011 mol H2O
This shows that the combustion of 7.44 g of acetate produced the expected ratio of CO2 and H2O.
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1234567890123345678901234567890
Answers
Answer:
1234567890123345678901234567890
Explanation:
trick question....
What volume of 4.50M hydrochloric acid can be made by diluting 250.0mL of 5.65M HCl?
Answers
Answer:
314mL OR 0.314L
Explanation:
this requires the dilution formula M1V1 = M2V2 where
M1 = initial concentration
V1 = initial volume
M2 = final concentration
V2 = final volume
In this case, we are solving for V1 where M1 = 5.65M, V1 = 250.0 mL, and M2 = 4.50M
Plugged into the equation we get:
(5.65M)(250.0mL) = (4.50M)V2
divide both sides by 4.50M and it becomes (M cancel)
V2 = 314mL
How will the following stresses affect this equilibrium system (iron thiocyanate system): Fe+3 {pale yellow} + SCN- FeSCN+2 {red} + heatA) Add KSCN (a source of adding SCN- ions in solution)?
Answers
ANSWER
The addition of KSCN to the system will shift the arrow to the product sides
EXPLANATION
Firstly, we need to define the term chemical equilibrium.
Chemical equilibrium can be defined as the state in which the reactants and the products are present in concentration and do not have a tendency to change with time.
To determine the shift of the chemical equilibrium in the reaction provided, state the le Chatelier's principle
Le Chatelier's principle states that when external constraints such as temperature, pressure, concentration, etc system in chemical equilibrium, the equilibrium arrow shifts so as to annul the effect of the external constraints.
From the reaction provided
\(\text{ Fe}^{+3}\text{ + SCN}^-\text{ }\rightleftarrows\text{ FeSCN}^{+2}\text{ + heat}\)The above equation shows that the reaction is an exothermic reaction because heat is liberated to the surroundings.
When one of the reactants is supplied to the system constantly, more of its product is formed. Hence, the equilibrium arrow shifts to the right-hand side of the reaction.
Hence, the addition of KSCN to the system will shifts the arrow to the product sides
What two classes of materials will dissolve in water.
Answers
"Polar" and "ionic" materials will most likely dissolve in water.
The two classes of materials that will dissolve in water are "polar" and "ionic" materials. Polar materials, such as sugar or alcohol, have an uneven distribution of charges, which allows them to interact with water molecules and dissolve. Ionic materials, such as table salt (sodium chloride), consist of positive and negative ions that are attracted to the positive and negative poles of water molecules, leading to their dissolution in water.
In both cases, the ability of a substance to dissolve in water depends on the interactions between the water molecules and the molecules or ions of the substance. Water's polarity and its ability to form hydrogen bonds make it an excellent solvent for many polar and ionic substances.
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Necesito la respuesta
Answers
Answer:
la tercera caja (3rd box)
Explanation:
usa desmos para obtener más ayuda
In a solution, the substance present in the largest quantity is called the __________, while any other dissolved components are called _________.
Answers
Answer:
A homogenous mixture of two or more substances is called solution. The substance with the greatest relative amount is called the solvent, while the other substance (s) is called the solute.
Explanation:
What can affect the properties of a substance?
neither the arrangement nor the types of atoms
only the types of atoms
the arrangement and types of atoms
only the arrangement of atoms
Answers
Why are race cars and bicycles made of lightweight materials?
Answers
evidence suggests that living things have changed over time some fossils of long dead organisms show what certain species looked like long ago genetic testing also provides evidence to support the relationship between extinct and modern organisms does this information support a low or a theory
Answers
A major unifying concept in biology is evolution. "Nothing in biology makes sense except in the light of evolution," Theodosius Dobzhansky once said.
Numerous branches of biology provide proof of evolution:
Anatomy: Because a physical characteristic was present in the following common ancestor, species may have similar physical characteristics (homologous structures).
the study of molecules. The genetic code and DNA show how life has a common ancestor. Comparing species' DNA can reveal how closely related they are.
Biogeography : Evolution and geological change are reflected in the global distribution of creatures as well as the distinctive characteristics of island species.
Fossils : The existence of species that are related to modern species but are now extinct is documented through fossils.
Direct perception: in creatures with brief life cycles, small-scale evolution can be seen directly (e.g., pesticide-resistant insects).
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differeniate between speed and acceleration
Answers
Answer:
speed is always positive
acceleration may be positive or negative
speed is scalar quantity
accleration vector quantity
50 POINTS
Which relationship explains how the water can boil at room temperature?
A. Lower air temperature results in a lower boiling point.
B. Lower air pressure results in a lower boiling point.
C. Lower air temperature results in a higher boiling point.
D. Lower air pressure results in a higher boiling point.
Answers
This is because in an open system, the lower the pressure the lesser the energy that will be required for boiling point. Lower air pressure results in a lower boiling point.
The is little or no collision of air molecules with the surface of the liquid. But if there is increase in pressure, more energy will be required to get to boiling point because there will be strong collision between air molecules and surface of the liquid.
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A gas occupies occupies a volume of 0.2 L at 76 mmHg. What volume will the gas occupy at 760 mmHg?
Answers
Answer:
0.02
Explanation:
To solve this problem we use the Boyle's law equation
P1V1 = P2V2
P1 = 76mmHg
V1 = 0.2L
P2 = 760mmHg
V2 = unknown
Substituting values into the equation;
76mmHg * 0.2L = 760mmHg * v2
15.2 = 760V2
Divide through by 760 to get v2
15.2/760 = 0.02
So the gas will occupy a volume of 0.02 at 760mmHg
a gas mixture called heliox, 6.11% o2 and 93.89% he by mass, is used in scuba tanks for descents more than 65 m below the surface. calculate the mole fractions of he and o2 in this mixture.
Answers
The mole fractions of He and O₂ in this mixture are 0.992 and 0.008 respectively.
The mole fraction can be calculated by way of dividing the number of moles of 1 factor of an answer via the full variety of moles of all the additives of an answer. it is mentioned that the sum of the mole fraction of all the components inside the solution has to be the same as one.
Mole Fraction describes the range of molecules contained within one aspect divided through the whole range of molecules in a given combination. it's miles quite beneficial whilst two reactive-natured components are mixed collectively.
O₂ = 6.11g / 32.0g = 0.191 mol O2
He = 93.89g / 4 = 23.5 mol He
Mole fraction = Mole fraction A = Moles A / Total moles present in a mixture
Mole fraction O₂ = 0.191 mol O₂ / Total moles (0.191 mol O2 + 23.5 mol He)
0.191 O₂ / 23.7 total moles (O2 + He)
0.008 Mole fraction O₂
For He
Mole fraction He = 23.5 mol He / 23.7 total moles
Mole fraction He = 0.992
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Where does the energy generated by hydroelectric dams come from?
• A. Earth's internal heat
B. Fossil fuels
C. Flowing water
D. Fission reactions
Answers
Answer:
The answer would be C. Flowing water is where you get energy from hydroelectric dams.
2. explain your thoughts on whether or not using solely nmr is a good method to make positive ids of chemicals.
Answers
No NMR is not a good method to make positive ids of chemicals.
Nuclear magnetic resonance cannot provide information on functional groups but can provide information on any compound. If any compound has two or more functional groups then it becomes more difficult to identify any of them. Therefore, NMR is not a good method to make positive ids of chemicals.
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The chemical name for ClO3- is "chlorate ion". Therefore, the name of HClO3 is A. hydrochloric acid. B. chloroform. C. hydrogen trioxychloride. D. chlorous acid. E. chloric acid.
Answers
The chemical name for ClO₃⁻ is "chlorate ion". Therefore, the name of HClO₃ is chloric acid. The correct option is E.
The ClO₃⁻ ion is known as the chlorate ion, which indicates that it is an anion (negatively charged ion) made up of chlorine and oxygen atoms. When hydrogen (H⁺) is added to this ion, it forms an acid.
In this case, HClO₃ is formed, which is known as chloric acid. The name of a compound can provide important information about its chemical composition and properties. It is important to understand the nomenclature of compounds to communicate effectively in chemistry.
Chlorous acid (option D) is the name given to the acid formed by adding H⁺ to ClO₂⁻, which is known as the chlorite ion. Hydrochloric acid (option A) is formed when hydrogen (H⁺) is added to chlorine gas (Cl₂), whereas chloroform (option B) is a different compound altogether, which is formed by reacting methane with chlorine. Hydrogen trioxychloride (option C) is not a valid name for any known compound.
Thus, E is the correct option.
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write the name and formula of the compound made of magnesium and fluorine. 15px
Answers
The name of the compound made of magnesium and fluorine is magnesium fluoride and its formula is MgF2. Magnesium fluoride is a white crystalline solid that has a bitter taste and is insoluble in water. Magnesium fluoride is a stable ionic compound with a high melting point.
This compound is the primary source of magnesium and fluoride ions in many industrial and chemical processes. Magnesium fluoride is produced by the reaction between magnesium oxide and hydrogen fluoride.
MgO + 2HF → MgF2 + H2O
In the laboratory, magnesium fluoride is produced by dissolving magnesium hydroxide in hydrofluoric acid.
Mg(OH)2 + 2HF → MgF2 + 2H2O
Magnesium fluoride is used in the production of ceramics and glass as a flux and to increase the resistance of the glass to attack by acids. Magnesium fluoride is also used as an optical coating on lenses and other optical components as it has a low refractive index.
Magnesium fluoride is a white crystalline solid with a bitter taste that is insoluble in water. It is the primary source of magnesium and fluoride ions in many industrial and chemical processes. The formula of magnesium fluoride is MgF2. It is used in the production of ceramics and glass as a flux and to increase the resistance of the glass to attack by acids. Magnesium fluoride is also used as an optical coating on lenses and other optical components as it has a low refractive index.
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What is a atmosphere
