Synthesis of trans-2-pentene from acetylene is given below.
When sodium acetylides and haloalkanes react, a higher order terminal alkyne is produced. From terminal to nonterminal alkyne formation. Trans-pent - 2-pentene is created through reduction. Trans-pent-2-yne is produced from ethyne primarily by a three-step process that includes the interaction of haloalkane with sodium acetylides to produce higher order terminal alkynes.
The second phase further alkylates terminal alkynes to higher order nonterminal alkynes, while the third step uses a dissolving reduction technique to produce trans-2-ene.A colorless gas with a light garlic-like smell is what acetylene appears to be. Air is heavier than gas. Flame can very easily return to the leak's origin.
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compare the magnitude of the lattice energy for each of the following two ion pairs. (a) cs and br- separated by a distance of 441 pm (b) mn2 and o2- separated by a distance of 292 pm
E= -5.23 × 10^-19 J/ion pair for Cs+ Br- ion pair.
E= -1.58 × 10^-18 J/ion pair for Mn2+ O2- ion pair.
therefore, lattice energy of second compound is higher than the first one.
Lattice energy is the bond energy of the compound which is now seperated.
Formula: E = (kq1q2)/r
now inserting the values for Cs+ and Br- into the equation,
where q1 = +1, q2 = −1, and r = 441 pm
Energy associated with the formation of a single pair of Cs+Br-
E= 2.31×10^-28 (+1)(-1)/441 × 10^-12
E= -0.00523 × 10^-16
E= -5.23 × 10^-19 J/ion pair
now inserting the values for Mn+2 and O2- into the equation,
where q1 = +2, q2 = −2, and r = 292 pm
Energy associated with the formation of a single pair of Mn+2O-2
E= 2.31×10^-28 (+2)(-2)/292× 10^-12
E= -0.0158 × 10^-16
E= -1.58 × 10^-18 J/ion pair
Therefore comparing both the ion pairs , the lattice energy of Mn+2 O2- pair is higher than the Cs+ Br- ion pair.
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What is the 3 importance of oxygen gas?.
Oxygen aids in an organism's ability to reproduce, grow, and convert food into energy. Humans breathe air into their lungs through their mouths and noses to receive the oxygen they require.
Explain what gas is.A gas is a sample of matter that, despite gravity and regardless of the volume of the container in which it is held, conforms to the shape of the container in which it is held and develops a uniform density inside the container.
What's causing the price of gas to rise?There will be a 2 million barrel per day reduction in oil production, according to major oil-producing nations Saudi Arabia and Russia. The consequences of that choice will therefore soon be felt by Americans when they fill up their gas tanks.
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What do you mean by characterization?.
The description of people (or other beings but rather things) in theatrical and literary works is known as characterization as well as characterization.
Character development would be occasionally used interchangeably.
Characterization would be a literary strategy that is employed in literature piece by piece to emphasize and clarify the specifics of a character in a narrative. The screenwriter establishes the character in the first act with such a definite emergence.
There are few type of Characterization.
(i)Interaction.
(ii)feelings/thoughts of the characters.
(iii)both the character's as well as other people's responses to the character.
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(HELP PLS WILL Give Brainly)
1. Describe at least three properties of elements in groups 1, 17, and 18.
2. We say elemento cannot be broken down by chemical means. However, elements can be broken down through nuclear reactions. This has been demonstrated through nuclear fissions And the hydrogen bomb (Where hydrogen atom was split) Consider How this affects the properties of the element in a nuclear reaction versus a chemical reaction. How does a nuclear process differ from a chemical process regarding the ability to “break down an element”?
Elements of group 1 are soft, have low density and low melting points, most of group 17 elements are reactive gases and form salts with metals.Group 18 elements show negligible reactivity and hence are inert.As nuclear reactions involve change in composition of nucleus it results in the formation of new element.
What is an element?It is defined as a substance which cannot be broken down further into any other substance. Each element is made up of its own type of atom. Due to this reason all elements are different from one another.
Elements can be classified as metals and non-metals. Metals are shiny and conduct electricity and are all solids at room temperature except mercury. Non-metals do not conduct electricity and are mostly gases at room temperature except carbon and sulfur.
The number of protons in the nucleus is the defining property of an element and is related to the atomic number.All atoms with same atomic number are atoms of same element.
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What is the order of bases along a DNA strand?.
One of the four bases—adenine (A), cytosine (C), guanine (G) or thymine is joined to the each sugar (T). Adenine and thymine form the hydrogen bonds with cytosine and guanine, respectively, holding two strands together.
Two complementary DNA nucleotide bases make upt he base pair, which will together constitute a "rung of the DNA ladder." The structure of DNA is a double helix, which is made up of two connected strands that loop around the one another to resemble like twisted ladder. Deoxyribose and phosphate groups alternately form backbone of each strand.
Adenine (A), cytosine (C), guanine (G), and thymine (T) are four bases of DNA (T). These bases come in the particular pairs (A with T, and G with C).
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Write net ionic equation for the reaction between nitric acid and calcium hydroxide.
The net ionic equation is applied mainly in neutralization reactions, double displacement reactions and redox reactions. The net ionic equation is as follows
Ca(OH)[tex]_2[/tex](s)+2HNO[tex]_3[/tex](aq)→Ca(NO[tex]_3[/tex])[tex]_2[/tex](aq)+2H[tex]_2[/tex]O(l)
What is net ionic equation?
The net ionic equation represents a chemical equation of a reaction that give an idea of species that are really participating in the reaction. We can write net ionic equations for those electrolyte which are strong in water.
The balanced net ionic equation is
Ca(OH)[tex]_2[/tex](s)+2HNO[tex]_3[/tex](aq)→Ca(NO[tex]_3[/tex])[tex]_2[/tex](aq)+2H[tex]_2[/tex]O(l)
Thus the net ionic equation is
Ca(OH)[tex]_2[/tex](s)+2HNO[tex]_3[/tex](aq)→Ca(NO[tex]_3[/tex])[tex]_2[/tex](aq)+2H[tex]_2[/tex]O(l)
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acetyl coa is formed by the pdh complex in 3 steps - what is the correct order of these steps? group of answer choices decarboxylation, transfer to coa, oxidation oxidation, decarboxylation, transfer to coa oxidation, transfer to coa, decarboxylation
The correct order of these steps are
This conversion takes place in three steps: decarboxylation, the reduction of NAD+, and the attachment of coenzyme A.
What is Decarboxylation?
It is frequently believed that decarboxylation from the carboxylate occurs through a unimolecular dissociative mechanism that leaves behind a carbanion and CO2. 2 Because there are no realistic functions for these catalysts in the transition state for decarboxylation, this process would not be susceptible to generic acid or basic catalysis. Since a unimolecular mechanism cannot explain any observed acid or base catalysis in a decarboxylation reaction, water must play a part. It has been demonstrated that acid catalysed decarboxylation occurs via a hydrolytic process. 10,11,13 We will go through a second associative base-catalyzed decarboxylation mechanism in the section that follows. This route can be accelerated by Brnsted bases and occurs in neutral environments.
In this article, we'll discuss decarboxylation, which is most frequently associated with the release of CO2 from beta-keto acids (and malonic acids) during the creation of malonic ester and acetoacetic acid, respectively.
We'll go over a few instances, demonstrate how to avoid a common mistake with arrow pushing, and then attempt to explain why decarboxylation occurs easily with beta-keto acids but not with "regular" carboxylic acids. Along the process, there will also be tests and exercises.
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the reaction between aqueous strontium chloride (srcl2) and aqueous potassium sulfate (k2so4) forms a precipitate of strontium sulfate (srso4). which of the following represents the net ionic equation for the reaction?
The net ionic equation for the reaction of the above given precipitation will result in the formation of strontium sulphate.
The net ionic equation is the chemical equation that shows only those elements, compounds, and ions that are directly usually involved in the chemical reaction. Notice that in writing the net ionic equation, the positively-charged cation are written first on the reactant side, followed by the negatively-charged anion. This is somewhat important because that is the order in which the ions must be written
Net ionic equations must be balanced by both mass and also charge. Balancing by mass means ensuring that there are equal masses of each element on the product and reactant sides. Balancing by charge means making sure that the overall charge is the same on both sides of the equation.
Considering this, the net ionic equation for the above given equation would be as follows;
[tex]K_{2}SO_{4}[/tex] + [tex]SrCl_{2}[/tex] → [tex]SrSO_{4}[/tex] + [tex]2KCl[/tex] , this is the balanced molecular equation,
Since the precipitate SrSO4 is formed, the net ionic equation will be;
[tex]Sr^{2+}[/tex] + [tex]SO_{4}^{2-}[/tex] → [tex]SrSO_{4}[/tex]
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What do scientists believe caused the layers of rock in the Grand Canyon?.
In the Grand Canyon, fossils in rock layers at the bottom of the canyon are older than those in layers closer to the top.
These rock layers are significant to earth scientists because of the changes in the appearance and composition of the rock layers reflect changes in the environment over time.
They are using the changes to the rocks to infer what has happened in the area. The younger layers of rock in the Grand Canyon are on top of the older layers "principles of superposition".
The Grand Canyon was formed over 6 million years ago by the Colorado river and cut a deep channel through the rock. Sediment over time builds up on river banks and similar areas. Anything to have died near that would have been covered and then left to decompose and mineralize under ground .
Therefore, the layer of Grand Canyon is believed to be caused by the time span. The fossils are in the lower layer and as the time changes, there happened to be many other layers formed having different compositions.
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What are the signs of intoxication guest?.
Signs of intoxication guest are slurred speech, difficulty in maintaining their balance, slowed reaction, aggressiveness and change in behavior.
Slurred speech is a very common sign of intoxication, and is a huge reason why you should continually engage your guest in conversation while they’re in your establishment. If you see your guest bracing themselves on chairs to maintain balance, or if they stumble on obvious steps. One of the surest signs that someone is intoxicated at your place of work is aggressiveness towards employees and patrons and changes in behavior. If you notice sudden changes in your patron’s demeanor . Some common signs of intoxication are: Loud speech, boasting, crude behavior, drinking alone, drinking too fast, ordering doubles, buying rounds and stumbling. There is no single indicator that will specifically identify visible intoxication.
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On a Lineweaver-Burk plot for a competitive inhibitor, the plots for separate experiments at different inhibitor concentrations will intersect
on the 1/V axis
Enzyme kinetics are graphically represented by the Lineweaver-Burk plot. The reciprocal of the substrate concentration on the x-axis is 1 / [S], and the reciprocal of the reaction velocity on the y-axis is 1 / V. This is why the double reciprocal plot is another name for the Lineweaver Burk plot.
Before the widespread availability of powerful computers and non-linear regression software, the Lineweaver-Burk plot was frequently employed to determine crucial parameters in enzyme kinetics, such as Km and Vmax. Such a graph's y-intercept corresponds to the inverse of Vmax, and its x-intercept denotes 1/Km.
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a student obtains a liquid sample of green food coloring that is known to contain a mixture of two solid pigments, one blue and one yellow, dissolved in an aqueous solution of ethanol. which of the following laboratory setups is most appropriate for the student to use in order to separate and collect a substantial sample of each of the two pigments?
The set up that can be used to separate the mixture is option C.
What is chromatography?The process of chromatography can be used in the separation of the components of a mixture (Image C). In this case, it is best used when we have pigments and we want to separate them.
There has to be a stationary phase and a mobile phase in the process. The stationary phase is a adsorbent and the mobile phase is a solvent that is able to carry out the actual separation of the mixture.
Since we have a liquid sample of green food coloring that is known to contain a mixture of two solid pigments, one blue and one yellow, dissolved in an aqueous solution of ethanol, we have to use chromatography.
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a sample of cerium-141 is available in a solution with an activity of 4.5 millicuries/ml. if 10.0 millicuries are needed for a test, how much of the solution should be measured out?
If a test calls for 10.0 millicuries, the equation calls for 2.2 mL of solution to be measured out.
What type of word is measured?As was mentioned above, the word "measured" can be a verb or a noun. Adverb usage He ran for a distance of a mile. He argued while speaking calmly. The three most widely used systems of measurement are the International System of Units (SI) numerals, old British Imperial System, and the United States Customary System.
Briefing:Here, all you need to do is use the saline solution's known chemical composition as just a calculation to determine however many milliliters would equal 10 millicuries.
As a result, you are aware that when you dissolve your cerium-141 sample in saline solution, you obtain an energy of 4.5 millicuries/mL. As a result, you know the 1 mL or saline solution can have 4.5 millicuries' worth of cerium-141 in it.
This means that a volume of corresponds to the an energy of 10. millicuries.
=10 millicuries.1mL saline/4.5 millicuries
=2.2mL saline
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What role does density play in the movement of convection currents?
According to the research, the correct answer is that the role that density plays is that density differences propagate the movement of convection currents when they absorb heat in a portion.
What is density?It refers to the magnitude that reflects the link that exists between two magnitudes, the mass of a body and its volume.
In this sense, convection currents are generated by differences in density where, due to heating a material, it increases in volume and, therefore, its density decreases and ascends, displacing the fluid that is in the upper part.
Therefore, we can conclude that the movement of the convection currents is caused by differences in density due to differences in temperature.
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When chlorine is added to sodium bromide solution, the mixture turns orange. What type of reaction has taken place?.
When chlorine is added to sodium bromide solution, the mixture turns orange and the reaction type for this is displacement reaction.
In the field of science, displacement reaction can be described as a type of reaction in which a more reactive element reacts or displaced the lesser reactive element.
According to the reactivity series, chlorine is more reactive as compared to bromine. Hence, when the element chlorine is added to sodium bromide, chlorine displaces bromide and forms sodium chloride. Bromine gas is released which turns the mixture to its orange color. Hence, the orange color shows that bromine gas has been displaced and sodium chloride has been formed.
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What is a promotional permit in Texas?.
We will not use intoxication-inducing promotions. No drinking contests will be held.
This permit allows the holder to engage in activities that promote and enhance the sale of an alcoholic beverage in this state, including activities that take place on the premises of the holder of a permit or license under this code, on behalf of a distiller, brewer, rectifier, manufacturer, or winery with whom the holder has a business relationship. A promotion permit holder may participate in various activities to promote, improve, or promote the sale of an alcoholic beverage on behalf of another, whether a rectifier, manufacturer, distiller, brewer, or wine bottler. In the event of a violation, the permit may be suspended for 60 days.
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What are fire protection measures?.
Fire protection measures are the actions taken to control or safe guards the objects from fire.
In order to lower the risk of fire and, in the event of a fire, lower the damage or harm brought about by the conflagration, they combine active fire protection measures (such as fire extinguishers and sprinkler systems to combat uncontrolled fires) and passive measures (such as fireproof building materials).
The term "fire protection measures" is typically used to describe actions taken to reduce or mitigate fire hazards. The defense keeps a fire from spreading or guarantees that the building won't burn for a predetermined amount of time. Passive measures appeal is based on the dependability of this sort of security. The use of noncombustible construction materials, low-flame-spread/low-smoke-development rated materials, equipment spacing, substation grading, placing crushed rock around oil-filled equipment, etc. are examples of common passive protection methods.
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Check all features below that you included in your
Lewis structure.
correct number of P and Cl atoms
P as the central atom
line (single bond) between P and each of the
five Cl atoms
six dots (electrons) associated with each CI
atom
no other lines or dots
DONE
The phosphorous chloride Lewis structure consists of all the following elements.
Briefing:
Using phosphorus as the main atom
A line connecting Phosphorous to six dots (electrons) connected to five separate chlorine atoms.
This indicates that the phosphorus atom is surrounded by ten electrons.
The electrons of a species are depicted as dots in Lewis structure.
The valence electrons in an atom or molecule are displayed as dots in a Lewis structure. A single dash can occasionally be used to denote shared electrons in molecules.
Trigonal bipyramidal structure describes PCl5. The arrangement of the trigonal bipyramidal structure results in opposite bonds cancelling each other's dipole moments, making PCl5 nonpolar.
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When reacting na with cl2, we calculated that the theoretical yield should be 13 grams. Our actual yield was 12. 5 grams. What is the percent yield?.
The percent yield is 96.15% when reacting with Cl₂.
It is given that the theoretical yield is computed to be 13g and the calculated actual yield is 12.5g. To find the percent yield when reacting with Cl₂ the following formula is used:
Percent yield = Actual yield/ Theoretical yield x (100)
By plugging in the given values we get the value of percent yield to be,
Percent yield = 12.5/13x(100)
Percent yield = 0.9615x100
Percent yield = 96.15%
Therefore the percent yield is 96.15%.
If the theoretical and actual yield values are given then, the percent yield could be computed very easily using the above-mentioned formula. The calculation of percent yield tells us how far the actual yield obtained deviated from the theoretical yield.
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What formula would produce value in cell C25?.
The formula that would produce value in cell C25 is to type =C4+C7+I10+L12 .
What makes Excel so crucial?Users of Microsoft Excel are able to see trends and classify data into useful groups. In order to help businesses better understand the composition and activities of their workforce, Excel also performs human resources tasks like categorizing hours worked and organizing employee profiles and expenses.
A formula in Microsoft Excel is an expression that manipulates cell values. Even when there is an error, these formulas nonetheless provide a result. Calculations like addition, subtraction, multiplication, and division can be done using Excel formulas.
Therefore, Note that In cell C25, enter after typing =C4+C7+I10+L12. The final budget is the sum of the allocated funds for each assignment (BAC).
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if 3.39 mol of an ideal gas has a pressure of 2.31 atm and a volume of 67.23 l, what is the temperature of the sample in degrees celsius?
Gases are difficult. They contain countless billions of energetic gas molecules that have the potential to collide and interact. Since it is difficult to precisely characterize a real gas, the idea of a "ideal gas" was developed as a rough approximation that aids in modeling and predicting the behavior of real gases.
What is the molar form of the ideal gas law?The ideal gas law, a straightforward formula, relates the pressure, PPP, volume, VVV, and temperature, TTT, of an ideal gas. We typically treat gases as ideal, unless there is a good reason to do otherwise, because of how straightforward this relationship is.PV=nRT, equals, n, R, and T
In this equation, PPP stands for the gas's pressure, VVV for its volume, TTT for its temperature, RRR for its constant, and nnn for its molecular weight.Volume V = 67.23V unitm³
Moles n = 3.39mol
Temperature T = 2.31
P = 0.96846237269814 Pa.
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The temperature of the sample in degrees Celsius is 0.96846237269814 Pa.
What is the molar form of the ideal gas law?The ideal gas law, a straightforward formula, relates the pressure, PPP, volume, VVV, and temperature, TTT, of an ideal gas.We typically treat gases as ideal, unless there is a good reason to do otherwise, because of how straightforward this relationship is.PV=nRT, equals, n, R, and TIn this equation, PPP stands for the gas's pressure, VVV for its volume, TTT for its temperature, RRR for its constant, and nnn for its molecular weight.
Volume V = 67.23V unitm³
Moles n = 3.39mol
Temperature T = 2.31
P = 0.96846237269814 Pa.
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the partial pressure of oxygen in the atmosphere is 0.2095. calculate the partial pressure in kpa. round answer to significant digits.
The value of pressure 7.0984 mmHg, the value of torr7.0984 torr. To determine the proportion of pressure from the total pressure that may be assigned to each individual gas, divide the mole fraction of each gas by the total mole fraction.
How can I determine the partial pressure?Calculating partial pressures can be done in one of two ways: 1) To determine each gas's unique pressure in a mixture, use PV = nRT. 2) .To determine the proportion of pressure from the total pressure that may be assigned to each individual gas, divide the mole fraction of each gas by the total mole fraction.Explanation:
Data obtained from the question include:
Partial Pressure of Ar = 0.2095 atm
1. The value of pressure in mmHg is obtained as shown below:
1 atm = 760mmHg
Therefore, 0.2095 atm = 0.2095 x 760 = 159.22mmHg
2. The value of the pressure in torr is obtained as shown below:
1 atm = 760torr
Therefore,0. atm = 0.2095 x 760 = 159.22torr.
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What is the structure and function of protein albumin?.
The structure of albumin is globular and the main function of this protein is to regulate the oncotic pressure and also maintain the pH of the blood.
Albumin is generally a family of globular proteins, the most common of which are the serum albumins. All the proteins of the albumin family are usually water-soluble, and are moderately soluble in concentrated salt solutions, and also experience heat denaturation. Albumins are commonly found in blood plasma and they differ from other blood proteins in that they are not glycosylated. Substances containing albumins are called as the albuminoids.
Albumins in general are the transport proteins that bind to various ligands and then carry them around. Along with that albumin performs a variety of essential functions such as it regulates the oncotic pressure and also the pH of the blood . It also binds and transports various bioactive molecules, including proteins, peptides, fatty acids, hormones, amino acids, drugs, nutrients, and also metal ions . These properties make albumin an excellent candidate for many clinical and biotechnological applications.
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What is the main distinction between ionic and covalent bonding quizlet?.
Chemical bonds come in two types: ionic and covalent. Rarely occurring strong intermolecular attraction in which ionic bonds are formed by electron loss or gain and covalent bonds are created by atoms sharing electrons.
Ionic bond :
An electrostatic attraction between ions with opposite charges in a chemical compound results in an ionic bond, sometimes referred to as an electrovalent bond. These bonds mostly form between metallic and non-metallic atoms.Between a metal and a non-metal, an ionic bond is created. Non-metals (-ve ion) are "stronger" than metals (+ve ion) and can take electrons from metals very easily. The ionic connection is formed by the attraction of these two opposite ions.A metal and a non-metal are in contact with one other.High melting point.Covalent bond :
Covalent bonding is a type of chemical bonding between two non-metallic atoms that is characterized by the sharing of electron pairs between atoms and other covalent bonds.When two non-metals with similar electronegativities come into contact, a covalent bond is created. Both atoms are not "strong" enough to attract electrons from the others. They give each other their outer molecular orbit electrons to improve the stability.Two non-metals are in contact with each other.Low melting point.So, this distinction between ionic and covalent bonding.
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Does American romantic poetry follow a fixed rhyme scheme and structure?.
American romanticism poetry does not follow a fixed rhyme scheme and structure instead they follow or stress more on emotional apart from physical.
The American Romanticism movement, which lasted from about 1830 to 1870, represented a shift away from faith and beliefs in science and reason and toward faith in emotions, feelings, and nature. the belief in humanity's goodness and the return to nature, leaving behind the source of corruption, civilization This movement gave rise to two subgenres. Transcendentalists (beliefs and emphasis on the spiritual and emotional rather than the physical) and Gothic literature (related to all what is dark, scary, gloomy and mysteries).
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in addition to being massive empires, rome and han china were home to the largest cities the world had ever seen. select the cities in han china that were as big or bigger than roman carthage.
The cities in han china that were as big or bigger than roman carthage is Changan, Luoyang.
The han china was the imperial dynasty of the China. the han china is known as the han dynasty and it is known for the achievements such as development of the civil services and the government services. Changan is the traditional name for the Xian. Luoyang found in the mid of 11th centaury.
Thus, in addition to being massive empires, rome and han china were home to the largest cities the world had ever seen. cities in han china that were as big than roman carthage Changan, Luoyang.
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o calculate the isoelectric point of amino acids having other ionizable functional groups, we must also take into account the pka of the additional functional group in the side chain. for an acidic amino acid (one with an additional acidic oh group): for a basic amino acid (one with an additional basic nh group): pi
Two pKas—pKa1 and pKa2 for carboxylic acid and amine, respectively—define these amino acids. The isoelectronic point, pI = 1/2 (pKa1 + pKa2), will lie halfway between or at the average of these two pKas.
Who should avoid consuming amino acids?Nausea, headaches, and soreness are three of the most often stated concerns of long-term amino acid intake. Amino acid supplements may have an impact on your blood sugar levels .This implies you ought to stay away from them both before and after surgery. A single amino acid supplement is generally not recommended, according to several specialists.
Amino acids should be taken when?Adding 5-10 grams of branched-chain amino acids to your shake routine, either pre- or post-workout, is the best time to consume them in order to nourish your body and rebuild your muscles.
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What is a simple radical?.
There is only one atom in a simple radical. Several examples are Na +, Cl -, S 2 -, etc. Atoms, which are very little particles of matter, are what define a chemical element specifically.
How are atoms formed?A chemical element's atoms are the basic building blocks of matter. An atom's core nucleus, which is composed of all of them, is surrounded by one or even more positively charged electrons. The relativistic heavy particles protons and neutrons, one or more of which can be located in the nucleons.
What is atom composed of?Because everything in the cosmos is formed of matter (as opposed to energy), everybody in the universe is composed of atoms. Protons, neutrons, and electrons are three extremely small types of particles, together referred to as subatomic particles, that make up an atom.
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half life for radioactive decay of 32p is 14.2 days. how many days would be required for a sample of a radiopharmaceutical containing 32p to decreaseto 20% of its initial activity
The initial activity is t = 33.033 ≈ 3 day.
How do you calculate radioactive decay using half-life?Based on the amount of time needed for a reactant's concentration to drop to half its initial value, another method of describing reaction rates is used. The reaction's half-life, abbreviated as t1/2, is defined as this duration.As a result, the reactant concentration must decrease from [A]0 to [A]0/2 within a certain amount of time for a reaction to reach its half-life.A faster reaction will have a shorter half-life than a slower reaction if the two reactions have the same order.A given set of reaction conditions will always result in a constant half-life for a first-order reaction. Second- and zeroth-order reactions are an exception to this rule. Regardless of the reactant concentration, a first-order reaction has an independent half-life.This is clear from the equation that results from rearranging the integrated rate law for a first-order reaction:m = 0.2m × (1/2) t/14,3 ║ 0,2m
m/0,2m = (1/2) t/14,3
5=(1/2) t/14,3
log ab = C ⇔ ac = b
t/14,3 = log (1/2)5
t/14,3 = 2,31 ║× 14.3
t = 33.033 ≈ 3 day.
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How many moles of chlorine gas at 110 °c and 28. 0 atm would occupy a vessel of 15. 0 l?.
The moles of chlorine gas at 110 °C and 28. 0 atm would occupy a vessel of 15. 0 l is
the ideal gas equation is given as :
P V = n RT
where,
P = pressure = 28 atm
V = volume = 15 L
R = constant 0.082 L atm / mol K
T = temperature = 110 + 273 = 383 K
n = moles = ?
P V = n RT
n = P V / R T
n = (28 × 15 ) / ( 0.082 × 383 )
n = 420/31.406
n = 13.3 mol
the moles of chlorine is 13.3 mol
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