High levels of ATP would activate the necessary enzymes for the citric acid.
The TCA cycle metabolizes acetate that is derived from carbohydrates, proteins, and fats to form adenosine triphosphate (ATP), which is referred as the body's energy currency. Oxidation of one glucose molecule through the combined action of the TCA cycle, glycolysis, and oxidative phosphorylation yields an estimated number of 30–38 ATP molecules.
High levels of ATP activates citric acid cycle because citrate synthase is inhibited by the final product of the citric acid cycle as ATP, ADP (adenosine diphosphate) works as an allosteric activator of the enzyme as ATP is formed from ADP. Therefore, the rate of the citric acid cycle is reduced when the cell has a high level of ATP.
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When the equation NaOH H2SO4 → is completed and balanced one of the products is ___?
When the equation NaOH + H2SO4 → is completed and balanced, one of the products is Sodium sulphate (NaSO4)
Sodium hydroxide reacts with sulphuric acid and has chemical formula is Naoh+h2so4 producing the product of (NaSO4+H2O) Sodium sulphate and water. This is an acid-base reaction and the product obtained is in the form of salt and water. Sodium sulphate is salt(product of neutralisation reaction).
Sodium hydroxide is an inorganic and strong base which is also known as caustic soda. The chemical formula of sodium hydroxide is NaOH and Sulphuric acid is strong acid with chemical formula H2So4.
When Both H2So4 and NaOH combine, the acid-base reaction will occur. Sodium hydroxide is a base that reacts with an acid, i.e., sulfuric acid to give respective salt and water as the product where Sodium sulphate is salt as a product . The reaction is an example of a neutralisation reaction.
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how can finding that the pepper moth's color is inherited help explain why the population has changed over time? On the chart at the end of this activity, summarize the evidence and record your interpretation
Pepper moth's dark color suits for the dart surroundings of night and it helps them to hide from their predators. The white peppered moth undergone extinction because the industrial revolution, made their white shelters dark.
What was natural selection for pepper moth?The peppered moth, like many insects, can advantage from blending into its surroundings. This implies that the colors of the bird should complement the trees on which it rests. What would happen then if the trees started to change and the peppered moths lost their ability to fit in?
It could adjust in a variety of ways to these changes. The people might move (to try to find trees that match its color). In addition, the species may have changed over time to adapt to its new environment.
The light moths were blended with light trees. However, the industrial revolution changed the scenarios. It made the tree color dark, where the light moths can be easily catched by their predators. Whereas, the population dark moths increased.
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What are the 3 types of covalent bonds and examples?
Depending upon the number of shared electron pairs, the covalent bond can be classified into:
Single Covalent Bond.
Double Covalent Bond.
Triple Covalent Bond.
A covalent bond is formed by the equal sharing of electrons from both participating atoms.
A type of chemical relationship known as a covalent bond entails the sharing of electron pairs between atoms. The electrical attraction of their nuclei for the electrons is what causes the binding. It is in charge of squeezing the atoms together. day Covalent compounds are substances that display covalent bonding. In organic chemistry, covalent bonds are more frequent than ionic bonds. Another name for them is molecular bonding.
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unless otherwise instructed, you may use the periodic table in the chemistry: problems and solutions book for this question. which amount has the greatest mass?
One mole of uranium has a mass in grams identical to the atomic mass of the detail at the Periodic Table. One mole of carbon has a mass of 12.01 grams.
One mole of uranium has a mass of 238.03 grams. They each have the identical # of atoms, however uranium atoms have extra mass than carbon atoms. Because every detail has a exceptional atomic mass, however, a mole of every detail has a exceptional mass, although it incorporates the identical wide variety of atoms (6.022 × 10 23).
One mole of any detail has a mass in grams identical to the atomic mass of the detail at the Periodic Table. One mole of carbon has a mass of 12.01 grams. One mole of uranium has a mass of 238.03 grams.
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Period of repolarization of the neuron during which it cannot respond to a second stimulus
The period of repolarization is a refractory period
The refractory period of a neuron is the period after the neuron has fired an action potential during which it cannot respond to a second stimulus. This is because the neuron is repolarised, during which the electrical and chemical changes that took place during the action potential are reversed. Once the refractory period has passed, the neuron can then fire another action potential in response to a new stimulus.
The length of the refractory period varies depending on the type of neuron and the specific stimulus that was received. Generally, the refractory period is relatively short, lasting only a few milliseconds. This allows neurons to fire multiple action potentials in rapid succession, enabling the rapid transmission of information throughout the nervous system.
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What patterns do you notice as you move down the groups on the periodic table?
On the periodic table, as you move down you will notice that the atomic radius is increases and atomic number of elements are rises.
The chemical and physical characteristics of the elements are periodic functions of their atomic numbers, according to the Modern Periodic Law.
The number of shells grows as we advance down the group, increasing the atomic size as a result.
For instance, the group in which Sodium (Na) and Lithium (L), both belong is Group 1.
Lithium is composed of 3 atoms and has the structure 2(K), 1. (L).
Sodium, on the other hand, has 11 atomic numbers and is configured as 2(K), 8(L), and 1. (M).
So, The number of occupied levels and an element's atomic number rises while the effective nuclear charge on the outermost electron stays the same. The atomic radius grows as a result.
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which structural features determine the chemical and physical properties of aldehydes and ketones? select all that apply.
The features are:
-Number of carbons in the molecule
-Presence of an alpha hydrogen
-Presence of a carbonyl group
-Hybridization of the carbonyl carbon
-Presence of a hydrogen attached to the carbonyl carbon
The chemical and physical properties:
1. The functional group: The functional group, either an aldehyde (C=O) or a ketone (C=O) group, determines the chemical and physical properties of aldehydes and ketones. Aldehydes and ketones are both part of the family of compounds called carbonyl compounds and they have similar chemical properties due to the presence of the carbonyl group.
2. The size of the carbon chain: The size of the carbon chain of an aldehyde or ketone will also determine its chemical and physical properties. As the carbon chain increases in size, the boiling point of the compound increases, and its solubility in water decreases.
3. The presence of polar functional groups: The presence of polar functional groups attached to the carbon chain will also affect the physical and chemical properties of aldehydes and ketones. For example, if a hydroxyl group (–OH) is attached to the carbon chain, the compound will be more soluble in water and its boiling point will be lower.
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What is the identity of a 100.0 g sample of metal that, upon absorbing 4680 J of heat, increases in temperature by 52.0 °C? Metal Specific Heat Capacity J/(g.°c) Aluminum 0.90 Copper 0.38 Iron 0.45 Magnesium 1.00 Silver 0.23 Tin 0.32 Titanium 0.52 A) Mg B) AI C) Ti D) Fe
The metal is the Aluminium that has the 100.0 g sample of metal that, upon absorbing 4680 J of heat, increases in temperature by 52.0 °C.
We have a mass (m) of 100. g of an unknown steel that, while absorbs 4680 J of warmth (Q) will increase in temperature via way of means of 52.0°C (AT). The unique warmness capability (c) of the steel is the quantity of warmth required to elevate the temperature of the unit mass via way of means of the unit of temperature.
We can calculate it the usage of the subsequent expression.
c = Q/(m*Delta*T) = 4680J 100.g*52.0^ C = 0.900J/g.°CAluminum is the steel whose unique warmness capability is 0.900 J/g. °C.Aluminum is a steel that, in a 100. g pattern soaking up 4680 J of warmth will increase in temperature via way of means of 52.0 °C.Read more about heat capability here: https://brainly.com/question/22563191
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sodium hydroxide is added to a groundwater containing 10-4 m mg2 and 10-3 m ca2 . (use the solubility constants on canvas) (a) at what ph will mg(oh)2(s) begin to precipitate? (b) will ca(oh)2(s) precipitate at this ph? (c) at what ph will [mg2 ] be reduced to 10-6 m?
To figure out what concentration of hydroxide anions, OH, would cause the solid to precipitate out of solution, one must utilize the solubility product constant for magnesium hydroxide.
(a) The dissociation equilibrium for magnesium hydroxide is represented by the following equation: Mg ( OH ) 2(s) Mg 2 + (aq)+2 OH (aq)
Ksp, the solubility product constant, will be equal to [Mg 2 +]. ⋅ [ OH − ] 2 the quantity of hydroxide anions to determine the pOH of the solution.
[ OH − ] = √ 1.0 ⋅x10 − 11/ 10-4 = 0.00031
pOH = log ( [ OH] ) pOH = log ( 0.00031 ) = 3.5
pOH + pH = 14 to determine the solution's pH
pH = 14 3.5 = 10.5
(b) Ca(OH)2(s) will precipitate at this pH since it is the same as mg2
(c) Given that [mg2] = 10-6m
[OH ] = 1.0 x10 11/ 10-6 = 0.0031
pOH = log ( [ OH] ] = pOH = log (0.0031 ) = 2.5,
the pH of the solution is pH = 14-2.5 = 11.5
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What is the total number of elements in group 17 that are gases at room temperature.
Two is the total number of elements in group 17 that are gases at room temperature: fluorine and chlorine.
What elements make up group 17?The chemical elements that make up group 17 of the periodic table are called halogens, which in the Greek language means salt former.
This group is made up of:
Fluorine (F)Chlorine (Cl)Bromine (Br)Iodine (I)Astatus (At)tenesus (Ts)Halogens in a gaseous stateThese elements are shown to have strong binding energy with other atoms but weak interactions with the diatomic fluorine molecule, which means that as one moves down the periodic table the element's reactivity decreases with increasing atom size.
The same happens with intermolecular binding energy, so fluorine and chlorine are the only elements in this group that are stable gases at room temperature.
Iodine is solid at room temperature, like bromine, but as soon as it gets slightly warm it melts and immediately evaporates into a thick, dense vapor, while astatine and tenesus are stable solids at room temperature.
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(s) how much excess reactant remains after the combustion of 6.53 moles of ethane gas with 10.6 moles of oxygen gas?
The 3.51 mol of ethane will be excess.
What is combustion?
Burning can also be referred to as combustion. Fuel is heated and interacts with oxygen in a combustion reaction. The three elements of fuel, heat, and oxygen required for combustion are summed up by the fire triangle. A fire extinguishes when one of these items is taken from it.
What is reactant ?
Reactants are the materials that take part in a chemical reaction. The process through which atoms, the fundamental constituents of matter, rearrange themselves to create new combinations is known as a chemical reaction. Raw materials that interact with one another are known as reactants.
6.53 moles of ethane gas
10.6 moles of oxygen gas
The combustion of ethane follows the following reaction
C₂H₆+7/2 0₂ ⇒ 2CO₂+3H₂0
so,⊥ mole of the C₂H₆ needed 7/2 or 3.5 mol 0₂
here 0₂ will be limiting reagent
so, the mole of ethane combust completed = mole of 0₂ / 3.5
= 10.6/3.5
=3.0285
≈3.02 mol
mole of excess reagent = 6.53- 3.02
= 3.51 mol g C₂H₆
so, 3.51 mol of ethane will be excess.
Therefore, 3.51 mol of ethane will be excess.
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place the components of the electron‑transport chain to outline the flow of electrons from nadh to o2.
The electron transport chain consists of several protein complexes, which are typically arranged in the following order: NADH dehydrogenase,FADH2 dehydrogenase Complex I, Complex II, Complex III, Complex IV,ATP synthase, Cytochrome c oxidase.
NADH (nicotinamide adenine dinucleotide) donates its electrons to the first component of the electron transport chain, which is usually an enzyme called NADH dehydrogenase. The electrons are then passed from NADH dehydrogenase to the next component of the electron transport chain, which is typically an enzyme called flavin adenine dinucleotide (FADH2) dehydrogenase. The electrons are then passed from FADH2 dehydrogenase to a series of protein complexes known as the electron transport chain. These complexes, which are embedded in the inner membrane of the mitochondria, are called Complex I, Complex II, Complex III, and Complex IV. As the electrons pass through these complexes, they release energy, which is used to pump protons across the inner mitochondrial membrane. This creates a proton gradient, which is a concentration difference of protons on either side of the membrane. The protons then flow back through a protein called ATP synthase, which uses the energy of the flowing protons to produce ATP, the main source of energy for the cell. Finally, the electrons are passed to the final component of the electron transport chain, which is usually an enzyme called cytochrome c oxidase. This enzyme combines the electrons with oxygen to form water, completing the process of cellular respiration.
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add curved arrows to the reactants to indicate the movement of electrons in this reaction.
The movement of electrons is always depicted by curved arrows. From the tail to the head, electrons migrate.
What is the point of the curved arrow?The curved arrow's function is to depict the transfer of electrons from one site to another.The majority of the arrows you'll encounter have a double-barb at the head that symbolises the motion of two electrons."Curly arrows" are most frequently used to depict the motion of electron pair.How does stability work?It is more stable for a building to have fewer formal charges than more.The most electronegative atom will hold the negative charge, resulting in the most stable structure.The least electronegative atom will be given a positive charge in the most stable configuration.Learn more about Formal Charge from: https://brainly.com/question/9790241
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How long will it take before twenty percent of our 1000-gram sample of uranium-235 has decayed?.
It will take 226,572,993 years to decay If twenty percent of 1000 gram sample of uranium-235 has decayed.
This is calculated using the Decay equation. Radioactive decay is the process by which an unstable atomic nucleus loses energy by radiation. A material containing unstable nuclei is considered radioactive. Three of the most common types of decay are alpha decay, beta decay, and gamma decay, all of which involve emitting one or more particles The decay equation is,
A(t) = A0 e k.t
where t is the time for the decay, and K is the characteristic of the material. Suppose T is the time it takes for half of the unstable material in a sample of a radioactive substance to decay, called its half-life.
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How do you solve STP problems?
Ideal gas law states that PV=nRT
It can be written as V = nRT/P,
“P” is pressure,
“V” is volume,
n is the number of moles of a gas,
“R” is the molar gas constant and
“T” is temperature.
Standard temperature and pressure (STP) refers to the nominal conditions in the atmosphere at sea level. These conditions are 0 degrees Celsius and 1 atmosphere (atm) of pressure.
Molar Volume at STP means that one mole of any gas will occupy 22.4 liters of space. When performing stoichiometry involving gas, remember that at STP, 1 mole of gas = 22.4 L, or that there is 1 mol gas/22.4 L. Molarity is used to describe the concentration of a solution.
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a 13.7 g sample of a compound exerts a pressure of 2.01 atm in a 0.750 l flask at 399k. what is the molar mass of the compound
The molar mass of the compound is 298 g/mol.
Define molar mass?
The mass of a sample of a chemical compound divided by the number of moles in the sample, measured in moles, is known as the molar mass of that compound.
Given:
Mass of sample = 13.7 g
Pressure P = 2.01 atm
Volume V = 0.750 L
Temperature T = 399 K
From the ideal gas equation,
PV = nRT
n = PV/RT
= 2.01 atm x 0.750 L / 0.0821 L-atm/mol-K x 399 K
= 0.04602 mol
It is calculated as,
Molar mass of the compound = mass /moles
= 13.7 g / 0.04602 mol
= 297.7 g/mol
= 298 g/mol
Therefore, the molar mass of the compound is = 298 g/mol.
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the molar enthalpy of solution of a salt that dissolves endothermically in water is measured in a coffee-cup calorimeter by weighing a known amount of distilled water into the cup and measuring its temperature, then adding a known mass of the salt to the water and measuring the temperature after the salt dissolves. if some water is initially present in the cup before the weighed amount of water is added, what is the effect on the experiment?
Answer:
Explanation:
The molar enthalpy of solution of a salt that dissolves endothermically in water is measured in a coffee-cup calorimeter by weighing a known amount of distilled.
The boiling of the solution increases from that of solvent and this effect is called elevation of boiling point. It is a colligative property.
What is calorimetry?Calorimetry is an analytical tool used to measure the heat energy absorbed or evolved from a reaction. The reaction which absorbs energy is called an endothermic reaction.
The reaction which evolves heat energy is called exothermic reaction. The boiling of a substance is an endothermic process. When a non-volatile solute is added to a solvent then, the boiling point of the solvent increases from that of pure solvent.
It is a colligative property thus depends on the amount of solvent and solute particles. Here, the addition salt solution gives higher molar enthalpy than that of water.
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What is the general name of the elements whose properties are intermediate between those of metals and non-metals ?
The general name of the elements whose properties are intermediate between those of metals and non-metals is known as metalloids.
Metalloid, in chemistry, is defined as an imprecise term used to describe a chemical element that forms a simple substance having properties intermediate between those of a typical metal and a typical non-metal. Most commonly used examples of metalloids are arsenic, boron, germanium, silicon, antimony, tellurium and pollanium.
We can identify metalloids in the modern periodic table by locating a zig-zag line which separates metals from non-metals. The borderline elements which are metalloids are - boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te) and polonium (Po) - This elements exhibit properties similar to both metals and nonmetals and are called metalloids.
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Which is the BEST question to find out whether an object has the right property for you to carry it in your backpack?
What does the object sound like?
What does the object taste like?
What is the color of the object?
What is the size of the object?
Answer: what is the size of the object
Explanation: then again though, i wouldn't carry something in my backpack that didn't taste good...
a regioselective reaction is one which?question 5 options:a single product is producemultiple products are made in equal amounts.
The option (c) is correct- multiple products are made with one in excess of the others.
What is regioselective reaction ?
Any mechanism that promotes bond formation at a specific atom over other potential atoms is said to be "regioselective." The term "regiochemistry" refers to the description of a reaction's regioselectivity (or lack thereof).
What is reaction ?
A chemical reaction involves the transformation of one or more chemicals, also known as reactants, into one or more additional substances, also known as products. Substances are composed of chemical components or chemical compounds.
Therefore, the option (c) is correct- multiple products are made with one in excess of the others.
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xe and kr form compounds with fluorine (xef2 and krf2). no fluorides with he or ne are possible. why? group of answer choices
In large sized noble gas Xenon, the electron attraction to the nucleus is weaker. It reacts with highly electronegative and small sized fluorine. Hence, the valence electron of Xe is attracted by fluorine. This helps in compound formation.
What is noble gas?
The noble gasses (traditionally additionally the inert gasses; on occasion referred to as aerogenes) make up a category of chemical factors with comparable homes; beneath general conditions.The six obviously taking place noble gasses are helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and the radioactive radon (Rn). Oganesson (Og) is a synthetically produced rather radioactive element. Despite the fact that IUPAC has used the time period "noble fuel" interchangeably with "institution 18" and accordingly covered oganesson, it can not be too chemically noble and is anticipated to interrupt the fashion and be reactive, because of relativistic consequences.To know more about noble gas, click the link given below:
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which is most likely to form a negative ion? none of the answers stated an element from group 17 an element from group 1 a metal
An element from group 17 is the most likely to form a negative ion.
Define negative ions.
Humans inhale a lot of negative ions, which are invisible, odorless, and tasteless molecules, in some situations.
They can also generate positive ions in other scenarios because they have additional electrons in their valence shell.
However, all of the elements in group 17 have seven electrons in their valence shells, therefore one more electron is needed for them to reach the octet state.
Consequently, they gain electrons to form negative ions.
Therefore, an element from group 17 is most likely to form a negative ion.
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What is the trend across a period as atomic number increases?
The trend across a period as atomic number increases, the atomic radius decreases , the ionization enthalpy increases, electronegativity increases, ionic radius decreases.
As we move from left to the right in a period in the periodic table the atomic number increases. the number of shells will remains the same across the period from left to right so the atomic radius decreases. the electronegativity across the period increases as the effective nuclear charge increases the more energy will be provide to remove the electron.
The ionic radius across the period from left to right in the periodic table also decreases as atomic radius decreases.
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151.98 kpa convret to atm
Answer: 1.49
Explanation: divide the kPa value by 101.325 kPa / atm.
Answer:
1.56901061 atmospheres
Explanation:
for an approximate result, divide the pressure value by 101.3
A man and his bike are 95 kg. His instantaneous speed at one point is 14m/s. The next time his speed is
checked he is going 28m/s. If the second speed was taken 7 seconds later, what force must the man have given
his bike to change the speed? What was the bicyclist's final momentum?
and his transformation into a bug represents a more gradual transformation into a unique human being.
g what is the angle between the carbon-hydrogen bond and the carbon-nitrogen bond in the hydrogen cyanide ( ) molecule?
The angle between the carbon-hydrogen bond and the carbon-nitrogen bond in the hydrogen cyanide ( ) molecule is 180 degrees
The HCN Lewis structure comprises three different atoms: hydrogen, carbon, and nitrogen. It is a polar molecule with a bond angle of 180 degrees.Hydrogen Cyanide (HCN) is a colorless, flammable, and poisonous liquid.
In the HCN Lewis structure, there is a triple bond between carbon and nitrogen and a single bond between C and H.A solution of hydrogen cyanide in water is called hydrocyanic acid. There are two sigma bonds, C-H and C-N.The bond between the C and the N in hydrogen cyanide is a triple bond.The hybrid orbital is sp, due to the linear geometry of the molecule.
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which laboratory test examines physical and chemical properties to determine the presence of abnormal elements?
Urinalysis is the laboratory test examines which examines physical and chemical properties to determine the presence of abnormal elements.
Abnormal elements-Transitional chemical elements in which the filling of the orbitals by electrons occurs with a violation of the experimental series of an increase in the energy of orbitals.
Urinalysis, a portmanteau of the words urine and analysis, is a panel of medical tests that includes physical examination of the urine, chemical evaluation.A urinalysis is a test of your urine. It's used to detect and manage a wide range of disorders, such as urinary tract infections, kidney disease and diabetes. A urinalysis involves checking the appearance, concentration and content of urine.
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Select True or False for each statement: The solubility of gases in water decreases with increasing temperature Most solids are more soluble at higher temperature. Pressure has little effect on the solubility of liquids and solids because they are almost incompressible.
The solubility of a substance is influenced by many factors, including temperature, pressure, and the type of solvent used. Knowing the solubility of a substance can be useful in a variety of applications, such as:
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Can bromine and chlorine react?
All of the carbon in existence is continually recycled in the carbon cycle?
A. True
B. False
Answer:
True
Explanation:
All of the carbon in existence is continually recycled in the carbon cycle
All life on earth's uses Carbon compounds for basic biological processes so the answer is True