A sugar, a phosphate group, and a base with nitrogen make up a nucleoside. A nucleotide is made up of a sugar, a phosphate group, and a base that contains nitrogen.
Who or what uses nitrogen?When preparing samples for chemical analysis, nitrogen is frequently utilized. Liquid sample concentration and volume reduction are accomplished using it. The chemical sector depends on nitrogen as well. It is used to make explosives, nylon, nitric acid, and fertilizers.
Is nitrogen dangerous to people?Each year, inhaling "air" with insufficient oxygen results in fatalities. Since nitrogen gas makes up 78 percent of the air we breathe, many people believe it to be safe. Nitrogen is only safe to breathe, though, when combined with the right amount of oxygen.
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Fill in the Blanks Type your answers in all of the blanks and submit While we haven't really discussed this yet, there is actually a mathematical relationship that links wavelength and energy. This is a very famous equation and takes the form E = hc/ 6.63 x 10-34 and c= the speed of light = 3 x 108 m/s. where h = planks constant = Use this equation to determine the Energy of the following photons: Type your answer here 1. A photon with a wavelength of 500 nm. E = Type your answer here J 1. A photon with a wavelength of 840 nm.
A photon with a wavelength of 500 nm. E = 3.98 X 10-13 J ~ 4X 10 J,A photon with a wavelength of 840 nm lambda is 986.241
Given: Energy (E) =hc/lambda, where, h = planck's Const. = 6.63 X 10 34 J sec, C= Speed of light= 3x 108 ms, Wavelength (in m)= lambda
(i) d = 500mm = 500x109m E= 6.63 X 10-34 JS x 3x 108 ms-1 5 x 107 = 5x107 mT, E = 3.98 X 10-13 J ~ 4X 10 J. 2) lambda= 840mm = 840X109 m = 8.40x 107m 840X109 m = 8.40x 107m, E= 6·63× 10-34 JSX 3X 108 ms/8.40 X 10-7m=2.37X/0, (iii) Given: E=5-15 X 10-19 E = bcJ = 5-15x10 195 = 6·63x10-34×3×108 lambda = 3.862 × 10 = 986.241. The wavelength refers to the distance among 2 sequential waves' intersection point. The term "corresponding points" describes two pts or particulate that are within the same phase, that is, pts that have finished exactly equal fragments of one‘s periodic motion. The distance among both identical points (adjoining crests) in adjoining cycles of the a sound wave transmitter perpetuated in space or through a wire is described as the wavelength. This distance is usually specified in wireless communication systems in metres (m), centimetres (cm), or millimetres (mm) (mm). Radio signals, light waves, and infra - red (heat) waves everybody has distinctive differences that they follow as they traverse space. Each wave has its own distinctive structure and length. The particular wavelength between peaks (high points).
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Electrons added to atomic orbitals of the same energy will remain unpaired with parallel spins until the subshell is more than half-filled" is a statement of Select one: O a. Conservation of Energy O b. The Aufbau Principle O c. Hund's Rule O d. The Periodic Law
The correct option is (c) Hund's Rule.
Hund's rule: every orbital in a subshell is singly occupied with one electron before any one orbital is doubly occupied, and all electrons in singly occupied orbitals have the same spin.When assigning electrons to orbitals, an electron first seeks to fill all the orbitals with similar energy before pairing with another electron in a half-filled orbital. Atoms at ground states tend to have as many unpaired electrons as possible. In visualizing this process, consider how electrons exhibit the same behavior as the same poles on a magnet would if they came into contact; as the negatively charged electrons fill orbitals, they first try to get as far as possible from each other before having to pair up.Electrons are negatively charged and, as a result, they repel each other. Electrons tend to minimize repulsion by occupying their own orbitals, rather than sharing an orbital with another electron. Furthermore, quantum-mechanical calculations have shown that the electrons in singly occupied orbitals are less effectively screened or shielded from the nucleus.
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Which of these is an abiotic resource? *
O Compost
O Grass
Sunlight
O ox
Answer:
Option (C) Sunlight
Explanation:
Abiotic factors refer to non-living physical and chemical elements in the ecosystem. Abiotic resources are usually obtained from the lithosphere, atmosphere, and hydrosphere.
What is true about metallic bonds?; Is a metallic bond a true bond?; What do metallic bonds hold together?; Which describes a metallic bond bond of?
A Metallic bond is the type of bond that is formed between two metals by sharing of their free electrons. They are non-polar and non-directional in nature.
In metallic bonds, there is an electrostatic force of attraction which holds together atoms in a metallic substance. Unlike in covalently bonded substances, the valence electrons in a metals are not localized and they can move about freely in a crystal lattice.
As such, due to this random movement, the valence electrons interact with the positive ions present in the crystal and this gives rise to a binding force which hold the metallic bond together.
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Selective Uptake and Gas Transport in Chemically Modified PIMs
Selective uptake is the procedure with the aid of using which membranes in cells decide what molecules can cross in and what molecules can exit of a cell.
The studies aimed to expand chemically changed PIM-1s to be used in adsorption and fueloline separation processes. In particular, the nitrile institution in PIM-1 became transformed to numerous one of a kind purposeful organizations to control the interplay capacity of PIM-1 with one of a kind species. Synthesis of PIM-1 became done with the aid of using one of a kind methods, the usage of each the low (72h, 65 °C) and the excessive temperature (forty min, 160 °C) methods.
The response led to a aggregate of hydrolysis products. The composition of the polymer has a profound impact at the very last overall performance of the polymer. Powder samples of hydrolysed PIMs had been used withinside the studies. The discount of nitrile to number one amine became done the usage of borane dimethyl sulphide complex, ensuing in amine PIM-1.
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How many grams of the solute mgso4 with molar mass 120g/mol are required to make 65.0ml of a solution that is 0.245m
The mass of MgSO₄ required to make 65.0ml of a solution that is 0.245 M is equal to 1.911 g.
What is the molarity?We can determine the concentration of a substance in a solution in terms of molarity
The molarity of a given solution can be calculated from the number of moles of a solute in a solution in a liter.
The Molarity of the solution can be determined from the formula mentioned below:
Molarity (M) = Moles (n)/Volume of the Solution ( in L)
Given, the molarity of MgSO₄ solution = 0.245 M
The volume of the MgSO₄ solution, V = 65ml = 0.065 L
The molar mass of the MgSO₄, M = 120 g/mol
Molarity = m/(M ×V)
0.245 = m/(120 ×0.065)
m = 1.911 g
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Consider the reaction A → products at 311 K. The concentration of A was monitored over time and the data was analyzed by plotting. It was found that a plot of 1/[A] vs time gave a straight line relationship. It was also observed that it took 24.5 s for the concentration of A to decrease from 0.757 M to 0.107 M. What is the half life for this reaction when [A]o = 0.757 M?
The half life for this reaction when [A]o = 0.757 M is 4.033 s
integrated rate law for 2nd order reaction:
1/[A]o = 1/[A] - k*t
so, for 2nd order reaction, 1/[A] vs t will be straight line
integrated rate law for 1st order reaction:
ln [A] = –kt + ln [A]o
So, for 1st order reaction, ln[A] vs t will be straight line
integrated rate law for zero order reaction:
[A] = [A]o – k*t
So, for zero order reaction, [A] vs t will be straight line
Here,
1/[A] vs t is straight line
so, order of A is 2
use integrated rate law for 2nd order reaction:
1/[A] = 1/[A]o + k*t
1/(0.107) = 1/(0.757) + k*24.5
9.346 = 1.321 +k*24.5
k*24.5 = 8.025
k = 0.328 M-1.s-1
Given:
rate constant, k = 0.328 M-1.s-1
use relation between rate constant and half life of 2nd order reaction
t1/2 = 1/([A]o*k)
= 1/(0.757*0.328)
= 4.033 s
The half-life of a chemical reaction can be defined as the time it takes for the concentration of a given reactant to reach 50% of its initial concentration (that is, the time it takes for the concentration of a reactant to reach half its initial value). This is represented by the symbol "t1/2" and is usually expressed in seconds.
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of the atoms below,___is the least electronegative. options: a) si b) f c) ca d) cl e) rb
Of the atoms that are given, Rubidium is least electronegative among the other 5 options, hence option e) rb is the correct option.
Electronegativite nature is the tendency of an atom to attract electrons towards itself. As we move from left to right in a period electronegativity increases as we move from metals to non metals.The electronegativity of an atom changes depending on the hybridization of the orbital employed in bonding.
Compared to electrons in p orbitals, s orbital electrons are retained more firmly. As a result, when the hybrid orbital has more s character, a bond to an atom that uses a spx hybrid orbital for bonding will be more strongly polarized to that atom. In organic chemistry, different functional groups rather than specific atoms are more frequently related with electronegativity.
It is common to use the terms group electronegativity and substituent electronegativity interchangeably. The inductive effect and the resonance effect, which are referred to as σ- and π-electronegativities, respectively, are typically distinguished from one another.
Hence, option e) rb is correct option here.
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Solved Which mineral will scratch fluorite but not feldspar?
A mineral with a hardness of 7 can scratch. Fluorite is unable to scratch feldspar, quartz, corundum, diamond, or any other mineral with a Mosh hardness greater than 4.
What is mineral?
In geology and mineralogy, a mineral or mineral species is, broadly speaking, a solid compound with a fairly well-defined chemical composition and crystal structure that occurs naturally in its pure form.
Therefore, A mineral with a hardness of 7 can scratch. Fluorite is unable to scratch feldspar, quartz, corundum, diamond, or any other mineral with a Mosh hardness greater than 4. In geology and mineralogy, a mineral or mineral species is, broadly speaking, a solid compound with a fairly well-defined chemical composition and crystal structure that occurs naturally in its pure form.
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What is The relationship between the electromotive force and the free enthalpy of reaction in a redox reaction?
Answer:
The EMF and free enthalpy (or Gibbs Free Energy) of a reaction are directly related.
If the free enthalpy of a redox reaction is negative, then the EMF will be negative, indicating that the reaction is spontaneous and will occur without the need for an external source of energy.
If the free enthalpy of the reaction is positive, then the EMF will be positive, indicating that the reaction is not spontaneous and will not occur without the input of energy.
The relationship between free enthalpy and EMF is shown in the following equation:
∆G = -nFE°(cell), where n is the number of electrons transferred, F is the Faraday constant, and E° is the EMF of a cell under standard conditions.
Which answer choice number matches the rate law expression for the reaction? (I'm struggling with differential rate law equations. Question and more information is on picture)
The correct rate law of the reaction is depicted by the expression that has been shown in option 4.
What is the rate law?We know that the rate law has to do with the expression that shows how the reaction is carrying on. In this case, we can see that the reaction is occurring between ammonia and boron fluoride.
The rate law would show us the individual order of reaction in each of the reactants that are in the reaction. As such, we can see that the correct rate law shows the changes in the concentration of the species has shown in the table.
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Which equation represents a spontaneous reaction?
(1) Ba + Ca2+ = Ba2+ + Ca i
(2) Co + Zn2+ → Co2+ + Zn
(3) Fe + Mg2+ → Fe2+ + Mg
(4) Ni + Mn2+ → Ni2+ + Mn
A spontaneous reaction is a reaction that favors the formation of products at the conditions under which the reaction is occurring.
What is spontaneous reaction?The equation that represents a spontaneous reaction is Ni + Mn2+ → Ni2+ + MnA spontaneous reaction serves as the reaction that is capable of proceeding in a given direction without outside source of energy.It is a reaction that is capable of occurring on it's own, without external force. Example of this reaction is the combustion reaction.Therefore, option 4 is a spontaneous reaction since it's a reaction between Nikel and magnesium and occur on its own.How do you determine if the reaction is spontaneous?If ΔH is negative, and –TΔS positive, the reaction will be spontaneous at low temperatures (decreasing the magnitude of the entropy term).When both of these conditions are met, the reaction occurs naturally. A spontaneous reaction is a reaction that favors the formation of products at the conditions under which the reaction is occurring.A spontaneous reaction is one that releases free energy, and so the sign of ΔG must be negative. Since both ΔH and ΔS can be either positive or negative, depending on the characteristics of the particular reaction, there are four different possible combinations.To learn more about spontaneous reaction refer to:
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in terms of electron energy band structure, discuss reasons for the difference in electrical conductivity between metals, semiconductors, and insulators.
In most simplified way, metals are good conductors of eletricity due to overlapping of valence and conduction bands and plenty of conduction electrons are available.
while in the case of insulators, there will be a large gap between valence and conductions bands(>5 ev) as such there is almost no conduction electrons are available, hence they are not able to conduct electricy.
finally in the case of semiconductors, the gap between valence and condudtion bands is very samll( nearly 1 ev) as such at room temperature only, some electroins manage to become conduction electrons and show small electrical conductiity. however, their conductivity is increased by adding impurities known as doping.
Conductors have an overlapping of valence and conduction bands. So the electrons can easily flow across the bands and hence conduct easily.Semiconductors have a small gap between the valence and conduction bands and hence a little of the electrons flow across the bands . But on increasing temperature , semiconductor shows increased conductivity , opposite to the metals.
Insulators have a very large energy difference between the valence and conduction bands . No electron flows across these bands . hence no conductivity.
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clastic sedimentary rocks are defined and named based mainly on their while chemical sedimentary rocks are defined mainly on their
Chemical sedimentary rocks are named mostly based on chemistry, whereas clastic sedimentary rocks are named primarily based on particle size.
By sorting, grain size, and shape, clastic rocks are categorised. Chemical sedimentary rocks form when dissolved minerals are dissolved in water. Chemical rocks are categorised mostly based on the minerals that make up the rock.Clastic sedimentary rocks are composed of rock fragments (clasts) from earlier strata. Rock fragments that have become loose due to weathering are then transferred to a basin or depression where silt is confined. When sediment is deeply buried, becomes crushed, and becomes cemented, sedimentary rock is produced. Clastic sedimentary rocks are classified into various groups based on the size of the sedimentary grains and the sorts of rock pieces that make up the sediment.
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Midterm Review Unit 3 & 4: Atomic Structure & Periodic Table
Atomic Structure & Periodic Table:
Mass of the nucleusEquals to the protons and neutronsUnits are AMUNot on the periodic tableHydrogen consists of positively charged protons and negatively charged electrons orbiting the nucleus. You can also find atomic structures in the periodic table of elements. Atomic structure is the arrangement of subatomic particles within an atom. An atom is the smallest unit of ordinary matter within an element.
Atoms contain three types of subatomic particles protons neutrons and electrons. Discovery of elementary particles. Atomic structure refers to the structure of an atom, including a nucleus in which protons and neutrons reside. Negatively charged particles called electrons rotate around the center of the nucleus.
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Along with energy obtained from fossil fuels, nuclear sources, and water,
environmentalists are encouraging the use of energy from wind. The turbines in the
picture are formed like the wings of an aircraft, allowing for maximum wind force. Which of
the following concerns of environmentalists and consumers would not demonstrate the
need for obtaining energy from the wind?
I think it's either B ⇔ C ⇔ D
Explanation:In the other hand:
⇵
B: Hazardous leaks and explosions ⇄ It can practically cause hazardous leaks and explosions because of the overdoes.C: Increase air pollution ⇄ 30-40% percent it's possible for this to be happening... But I'm not really sure.D: Rising consumer expenses ⇄ That I would definitely recommend that because it's true that the consumer rights are also a big overdoes.So it can be: B ⇔ C ⇔ D. But I would totally recommend → D ←What type of reaction is a precipitation?; What is a precipitation reaction example?; What is precipitation in a reaction?; Is precipitation a synthesis reaction?
The precipitation reaction is type of the double displace reaction. the substance which is dissolved is combine to form the one more solid products.
The precipitation reaction is the example of the double displacement reaction. when the dissolves substance in as aqueous solution are combine to form one or more solid substance are called as precipitation reaction. the precipitation reaction example are given as :
AgNO₃(aq) + KCl(aq) ----> AgCl + KNO₃(aq)
silver nitrate potassium chloride silver chloride potassium nitrate
(precipitate)
The AgCl. silver chloride is the solid form in the reaction as precipitate. this silver chloride is the insoluble salt formed as a product in the precipitate reaction.
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What chemical compounds might be present in drinking water?
Drinking water contains a mixture of anions and cations which are monitored and managed to avoid adverse health or environmental effects.
What is an anion?
Anions are negatively charged ions. they're formed when non-steel gains the electrons. They benefit one or multiple electron. therefore, they possess a internet bad rate. a few examples of anions are Iodide (I–), chloride (Cl–), hydroxide (OH–).When sodium a cation is depicted as Na+, the plus rate indicator shows that it has one electron much less than the entire variety of protons. accordingly, sodium having an uneven distribution of electrons and protons enables it to have a effective charge. Additionally the detail chloride anion Cl- could denote that it has one less proton than the overall wide variety of electrons and giving it a minus charge. The difference between Anions and Cations are provided in the desk indexed underneath.To know more about anions, click the link given below:
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What is splitting a uranium atom called?; What is the process of splitting a nucleus called?; What happens when a uranium nucleus splits?; What is the process of splitting the uranium nucleus into two smaller nuclei?
When an U-235 nucleus absorbs an extra neutron, it quickly breaks in two parts. This process is known as the fission .
Each time a U-235 nucleus splits up, it releases the two or three neutrons. Hence, possibility exists for creating a chain reaction.
In nucleus of each atom of uranium-235 (U-235) are 92 protons and 143 neutrons, for the total of 235. The arrangement of the particles within uranium-235 is somewhat unstable and nucleus can disintegrate if it is being excited by an outside source.
Production of neutrons is the main purpose of the MIT Research Reactor. The center active core contains an enormous number of neutrons that are moving at extremely high speeds in all directions while it is active.
Six boron-stainless steel control blades that are installed vertically next to the fuel components in the MIT reactor's uranium nuclei primarily regulate the pace of fissions. Neutrons can be absorbed by boron without being reemitted.
The amount of neutrons that the control blades absorb from the uranium when they are fully implanted is too great for a chain reaction to continue. The reactor's control blades are lifted very gradually to turn it on. more neutrons are produced as less and fewer of them are absorbed.
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2.) hard/soft acid base theory a. identify the products from the reaction between the following pairs of reagents. in each case identify the species that is acting as the lewis base and acid.
For each Lewis acid-base reaction, identify the base and the acid. Decide which reactant is an electron-pair donor and which reactant is an electron-deficient in each equation. Lewis acid is the substance with an electron deficit, while Lewis base is the other.
Small, compact, and polarizable describe hard acids and bases. Larger and more evenly distributed in size are soft acids and bases. In addition to their inherent strength, hard acids and soft acids react differently with different types of bases.
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1) Which option describes a situation in which reduction occurs?(1 point)
S2– becoming S
Cl2 becoming Cl–
Al becoming Al3+
Xe2+ becoming Xe6+
The option that describes a situation in which reduction occurs is Cl₂ becoming Cl⁻
In chemistry, reduction means a class of chemical reactions in which the number of electrons associated with an atom or group is increased.
A compound that accepts electrons is said to be reduced.
Situations in which reduction occurs include:
Cl₂ ⇒Cl⁻
When reduction occurs, the oxidation number (superindex) appears to decrease that number. In this case 2+ becomes 1-.
Note:
As with other problems, a decreasing oxidation number means that the compound or element is being reduced (gaining electrons), while an increasing oxidation number means it is being oxidized (losing electrons). increase.
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Which of the following changes in reaction conditions will alter the composition of an equilibrium mixture of gases for a reaction having unequal moles of gaseous products and gaseous reactants?
removing of products
increasing the temperature
decreasing the pressure
All of these will alter the equilibrium concentrations.
Removing of products, increasing the temperature and decreasing the pressure all of these will alter the equilibrium concentration. The correct option to this question is D.
The Le Chatelier principle is as follows: A movement in the equilibrium's location counteracts the effect of a change in one of the variables that characterize a system at equilibrium.
Equilibrium-affecting variables and the Le Chatelier principle
Alterations in concentration
Alterations in pressure.
Temperatures fluctuate.
The system's balance is thrown off when one of these elements changes, and it then readjusts itself until it achieves equilibrium again. The sections that follow discuss some of the most significant factors that affect equilibria.
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Complete question:
Which of the following changes in reaction conditions will alter the composition of an equilibrium mixture of gases for a reaction having unequal moles of gaseous products and gaseous reactants?
A) removing of products
B) increasing the temperature
C) decreasing the pressure
D) All of these will alter the equilibrium concentrations.
which of the following can be classified as small fires that need immediate attention before they get larger and more serious?
Small fires that need immediate attention before they get larger and become more serious : Incipient fires.
What do you understand by Incipient fires?Incipient refers to a fire that has just begun and is of size that has poor visibility, smoke inhalation and high temperatures.
It has flames that are small and not widespread. Incipient fires has smoke that allows for visibility in the room. The heat emitted from the flame is quite low.
Things that should be done when responding to incipient stage fire: Sound fire alarm and call the fire department, identify a safe evacuation path and do not allow the fire, heat or smoke to come between you and the evacuation path.
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Describe how you will apply this new knowledge of the dangers of sun exposure to your daily life.
Among electromagnetic waves, UV rays are most dangerous because exposure to these radiation cause serious problems in living organism. Therefore, the UV radiations from sun is very harmful.
What is electromagnetic wave?Electromagnetic wave is a wave which contain two component one is electric component and other is magnetic component. The electric and magnetic component are perpendicular to each other. There are so many wave that comes under electromagnetic wave like infrared wave , radio wave.
There is a relation between energy of wave. frequency of wave, and wavelength of wave
Mathematically,
E=hc/λ
where,
E = energy of electromagnetic wave
h is planks constant having value 6.67×10⁻³⁴js
c is speed of light that is 3×10⁸m/s
λ is the wavelength of electromagnetic wave
Sunlight contains UV radiations which are very harmful for the life on earth. These radiations causes skin cancer.
Therefore, the UV radiations from sun is very harmful.
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Determine the order in which each process occurs in protein synthesis. Rank the items from the process that occurs first to the process that occurs last. To rank items as equivalent, overlap them.
Protein synthesis is defined as the process in which cells make proteins. Synthesis of protein occurs in two stages: transcription and translation. Transcription is defined as the transfer of genetic instructions in DNA to mRNA in the nucleus. It occurs by following three steps: initiation, elongation, and termination.
The order of events in protein synthesis (from first to last) is given as follows:
DNA containing specific gene unravels: DNA is unwound at the specific gene due to binding of transcription factors present in promotor region of the gene. It is the initiator of the transcription.mRNA is synthesized: After initiation and promotor clearance, the process of transcription enters the elongation phase synthesizing the complete mRNA.mRNA combines with ribosomes: A mature mRNA combines associates with ribosome which is the site of protein synthesis. Binding of mRNA to ribosomes initiates the process of translation.Amino acids are bonded together by the mRNA codons are read on ribosomes and tRNA carries the specific amino acid to A-site of ribosome where peptide bond is formed between the two amino acids. The process continues till whole mRNA is translated to produce a protein.Learn more about protein synthesis from the link given below.
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Predict the products when cyclohexanol is heated in the presence of H^+. Show both the organic product and the inorganic product formed in this reaction.
Draw cyclohexanol with a double bond and without the OH- group. next draw water
How are double bonds created?Two atoms sharing two sets or electrons result in a double bond. Always shared in pairs, electrons. Covalent bonds are referred to as each shared electron pair. A double bond between two atoms requires more energy to break than a single bond because four electrons are divided between the two atoms in a dual bond.
What makes a single bond different from a double bond?When two atoms join one couple of electrons, they form a single bond; when they share two pairs, they form a double bond (four electrons). To form triple bonds, three pairs free electrons (six atoms) share space.
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largest number of moles? 1. 5.00 grams of chlorine (cl) 2. 5.00 grams of copper (cu) 3. 5.00 grams of calcium (ca) 4. all the answers contain the same number of moles. 5. 5.00 grams of lithium (li)
Lithium weighs 5. 5.00 grams and has the most moles.
Explain about the moles?Wilhelm Ostwald, a German chemist, is typically credited with coining the term. The Latin term moles, which meaning "a mass," is ultimately where the word mole originates, not from German. Because it is the diminutive and refers to "a little bulk," the word molecule is connected to the word mole.
A mole is equivalent to 6.023 x 1023 of any given substance (Avagadro number). The products of the chemical reaction can be measured using it. The number of moles per liter is the most often used unit for measuring molarity and is denoted by the unit symbol mole/L or moledm3 in SI units. The term molar often known as "1 M," refers to a solution with a concentration of 1 mole/L.
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in the reaction above, pyruvate: select one: a. reduces nad b. oxidizes nad c. reduces acetyl coa d. oxidizes acetyl coa
The correct answer to this question is pyruvate oxidizes in case of the aerobic respiration to generally form acetyl Coenzyme A or CoA which involves three major steps decarboxylation along with the reduction of the NAD+, and at the last attachment of CoA.
In the cellular inner space or the matrix, pyruvate is usually modified in a series of steps:
Step 1 : Pyruvate mostly loses the carboxyl group, which is then usually liberated as a carbon dioxide molecule, generally leaving a two-carbon molecule in its original place.
Step 2 : The two-carbon molecule from step 1 is further changed and oxidised, and then NAD+ takes up the all the lost electrons to create NADH.
Step 3 : Coenzyme A (CoA), an organic susbstance generated usually from the vitamin B5, is then joined with the oxidised two-carbon molecul. an acetyl group, to form the acetyl CoA. The role or the work of acetyl CoA, also designated as a carrier molecule, in this process is to transport the formed acetyl group to the citric acid cycle.
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type the correct answer in the box. what is the mass of one mole of phosphorous (p) atoms? express your answer to four significant figures. the mass of 1 mole of phosphorus atoms is ___ grams.
The mass of 1 mole of phosphorus atoms is calculated to be 30 grams.
Mass number of an atom is defined as the sum of total number of protons and neutrons present in an atom. The mass number of any element is calculated by the formula:
Mass Number (A) = Number of Protons + Number of Neutrons
On the other hand, atomic number is defined as the total number of protons present in an atom.
Therefore, it is calculated experimentally that mass number of phosphorous is 30 g/mol whereas atomic number of phosphorous is 15.
Therefore, the mass of 1 mole of phosphorus atoms is 30 grams.
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which of the following statements are true concerning co32-? the central carbon atom is sp2 hybridized. the bond angles about the central carbon atom are about 109o. there are three sigma bonds in co32-. all carbon-oxygen bonds are equal in bond length. there are two resonance structures for co32-
The central carbon atom is sp2 hybridized, has three sigma bonds and has two resonance structures.
Which of the following statements are true concerning co3^2?
the central carbon atom is sp2 hybridized. the bond angles about the central carbon atom are about 109o. there are three sigma bonds in co32-. all carbon-oxygen bonds are equal in bond length. there are two resonance structures for co32-The correct options are : 1, 3 and 4
Option 1 is correct because carbon atom in CO3^2- posses sp2 hybridization. A carbon atom is sp2 hybridized when bonding takes place between 1 s-orbital with two p orbitals. Option 2 is incorrect because carbon is sp2 hybridized, hence bond angle will be about 120°. There is a formation of two single bonds and one double bond between three atoms. The hybrid orbitals are placed in a triangular arrangement with 120° angles between bonds.Option 3 is correct because there are three sigma bonds. Three sigma bonds are formed from each carbon atom for a total of six sigma bonds in the molecule.Option 4 is correct because all carbon oxygen bonds are equal.Option 5 is incorrect because there are three resonating structures for CO3^2-To learn more about sp2 hybridization visit:
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