An irreversible chemical reaction makes up the voltaic cell. Current is produced as a result of the electron transfer occurring during the cell's reaction setup. An illustration of an electrochemical cell is this.
What do a voltaic cell's anode and cathode represent?An electrode where oxidation takes place is the anode. Reduction takes place on the cathode, an electrode. An electrolyte chamber called a salt bridge is required to finish the circuit in a voltaic cell.
How do you tell a voltaic cell's positive and negative terminals apart?The electrochemical series' lower-ranking metal will become the positive terminal. The positive ions in the electrolyte will receive the released electrons from the positive terminal. within a solar cell.
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complete the sentences to explain how a mutation can decrease the activity of a protein. match the words in the left column to the appropriate blanks in the sentences on the right. make certain each sentence is complete before submitting your answer.
If the mutation replaces one or more amino acids that do not form the same types of R group interactions as in the functional group protein, then the structure of the resulting protein can be altered so much that it has little or no functional activity.
A mutation is defined as a change in the DNA sequence of an organism. Mutations usually result from errors in DNA replication during cell division, exposure to mutagens or a viral infection.
Hereditary mutations includes cystic fibrosis, hemophilia, and sickle cell disease. Also other mutations can happen on their own throughout a person's life. These are generally called as sporadic, spontaneous, or new mutations. They affect only few cells.
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select the keyword or phrase that will best complete each sentence about the three general rules of for drawing lewis structures.
1. Draw only the valence electrons.
2. Give every element main group element (except hydrogen) an octet of electrons.
3. Give each hydrogen two electrons.
Lewis structures are used to describe the arrangement or configurations of the valence electrons of molecules and polyatomic ions involved in electronic bonding. A Lewis structure consists of the symbols of the elements in the molecule surrounded by dots with each dot representing each of the elements valence electrons. Also, the electrons shared between two elements are shown by dots between the two elements and these electrons are known as shared electron pairs. The valence electrons on atom that is not involved in bonding is known as lone pairs.
The three general rules for drawing Lewis structures are:
1. Draw only the valence electrons. Only the valence electrons of the atoms of elements are shown since they are the only electrons involved in chemical bonding.
2. Give every element main group element (except hydrogen) an octet of electrons. The complete eight valence electrons of the noble gases is associated with their stability. Thus, the main group elements show a tendency to form enough bonds to obtain eight valence electrons in order to achieve stability. This is known as the octet rule. However, since the maximum number of valence electrons for elements in the first period of the period table is two, the noble gas helium has completely-filled valence shell containing two electrons known as a duplet. Hydrogen belongs to the first period and is therefore an exception to the octet rule.
3. Give each hydrogen two electrons. Hydrogen attains a duplet structure in accordance with the structure of helium
Therefore, the three sentences are: Draw only the valence electrons. Give every element main group element (except hydrogen) an octet of electrons. Give each hydrogen two electrons.
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[NOTE: THIS IS AN INCOMPLETE QUESTION. THE COMPLETE QUESTION IS: Select the keyword or phrase that will best complete each sentence about the three general rules of for drawing Lewis structures.a. main group b. hafnium c. valence d. hydrogen e. core f. transition metal1. Draw only__the electrons. 2. Give every___element (except hydrogen) an octet of electrons. 3. Give each____two electrons.]
For the equilibrium Fe (a) + SCN FeSCN* (ag)+ heat (aq) pale yellow Red Describe the shift and the color change when the following are added. Explain with equations for the reactions. a. FeCls solution, 0.10 b. KSCN solid c. Fe(NOs)s solution, 0.10 M d. Na2HPO4 solution, 0.10 M e. NazHPO4 solid f. Deionized water M g. Ice
For the equilibrium Fe³⁺ (aq) + SCN⁻(aq) → FeSCN²⁺ (aq) + heat equations for the reactions is describe as below:
Since, it is an equilibrium if you apply any stress (concentration of product or reactant, heat and pressure) on the reaction. it will adjust itself in order to reduce the applied stress.
a. FeCl solution, 0.10 M
FeCl → 3 Fe³⁺ +3Cl³⁻
it increases the concentration of Fe³⁺ hence, equilibrium is shifted towards right.
b. KSCN solid
KSCN → K⁺ +SCN⁻
it increases the concentration of SCN (reactant) hence, equilibrium is shifted towards right.
c. Fe(NO₃) ₃ solution, 0.10 M
Fe(NO₃)₃ → Fe³⁺ + 3NO₃⁻
it increases the concentration of Fe³⁺, hence, equilibrium is shifted towards right
d. Na₂HPO₄, solution, 0.10 M
Na₂(HPO₄) → 2Na⁺ + HPO₄²⁻
HPO₄²⁻ +Fe³⁺ → Fe₂ (HPO₄)₃
since, it reduces the concentration of Fe³⁺ equilibrium will shifted towards left side
e. Na₂HPO₄ solid
since, it reduces the concentration of Fe³⁺ equilibrium will shifted towards left side.
f. Deionized water
It will reduce the formed heat, and the heat required for the backward reaction is not available. equilibrium will stay on right.
(will not affect)
g. Ice
It will reduce the formed heat and the heat required for the backward reaction is not available, equilibrium will stay on right.
So, this is the explanations for the given reaction.
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which of these compounds would you expect to be ionic, and which would you expect to be molecular: n2o, na2o, cacl2, sf4? explain your answer.
N2O and SF4 are molecular compounds, while Na2O and CaCl2 are ionic compounds.
This is because molecular compounds are composed of non-metals, while ionic compounds are composed of a metal and a non-metal.
What are molecular compounds and ionic compounds?
Molecular compounds are compounds composed of molecules held together by chemical bonds. They are formed when two or more non-metals combine and form a covalent bond.
Ionic compounds are compounds composed of ions held together by electrostatic forces. They are formed when a metal and a non-metal combine and form an ionic bond.
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Which statements about hydrogen bonding are true? A. A hydrogen bond is formed by sharing electrons between atoms
B. A hydrogen bond also requires formation of ions.
C. A hydrogen bond is weak force between atoms in a molecule, but is of enormous importance in physiology.
D. A hydrogen bond is nothing but a different form of hydrogen ion.
A hydrogen bond is weak force between atoms in a molecule, but is of enormous importance in physiology.
What is Hydrogen Bonding?
Dipole-dipole interactions between molecules that do not include a covalent bond to a hydrogen atom are known as hydrogen bonds. The attraction between two incredibly electronegative atoms, such N, O, or F, and a hydrogen atom that is covalently bonded to one of them causes it to occur.
Any electronegative atom, such as oxygen, chlorine, or fluorine, may make up the other atom, whereas one of the atoms is hydrogen. Between molecules or between two different molecules, hydrogen bonds can develop between the atoms.
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for the follwing pair of polymers,do the following:(1)state whether it is possible to decide if one polymer has a higher tensile modulus than the other;(2)if this is possible,note which has the higher tensile modulus and then cite the reason(s) for your choice;and (3) if it is not possible to decide,then state why not.
-syndiotactic polystyrene having a number-average molecular weight of 400,000g/mol
-isotactic polystyrene having a number-average molecular weight of 650,000g/mol
8.8 for the follwing pair of polymers,do the following:(1)state whether it is possible to decide if one polymer has a higher tensile modulus than the other;(2)if this is possible,note which has the higher tensile modulus and then cite the reason(s) for your choice;and (3) if it is not possible to decide,then state why not.
-syndiotactic polystyrene having a number-average molecular weight of 600,000g/mol
-isotactic polystyrene having a number-average molecular weight of 500,000g/mol
Yes, it is possible.
The tensile modulus of the linear and isotactic poly(vinyl chloride) will be higher. Compared to branched polymers, linear polymers are more prone to crystallize.
What is the mechanical properties of polymers?
The moduli of elasticity and other classes of strength measures, such as the yield and tensile strengths, can be used to characterize the mechanical properties of polymers in a manner that is quite similar to that of metals or other common crystalline materials. The most significant mechanical and elastic characteristics of polymeric materials are summarized generally below:
Strength: Whenever the applied force is greater than a straightforward linear elastic deformation, represents the stress force required to fracture the material sample under investigation. Tensile strength (stretching of the polymer), compressional strength (compressing the polymer), flexural strength (bending of the polymer), torsional strength (twisting of the polymer), and impact strength are some of the most important types of strength quantities used in typical materials characterization measurements (e.g. under the effects of direct hammering).Percent Elongation to Break (Ultimate Elongation): This statistic, expressed as a percentage change in the material's length, describes the maximum strain that the polymer sample can experience before it ultimately breaks (at the aforementioned strength point).Young's Modulus: A measure of a material's total stiffness, it is the ratio of stress to strain in the region of its linearly elastic response.To know more about Mechanical properties of polymers, visit:
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coonsider each of the following molecule in return describe the hybridization state of the central carbon
Al atom hybridization switches from being sp2 in AlCl3 to being sp3 in AlCl4.
What is hybridization?
Al has three bond pairs of electrons and no lone pairs of electrons in AlCl3. pondering the degree to which carbon atoms have hybridised. Hybridization state theory was first proposed by Linus Pauling in 1931 to explain the structure of molecules like methane (CH4). The steric number is calculated by adding the number of atoms an atom is bound to and the number of lone pairs it has. The atom is sp3 hybridised if the steric number is 4.
The atom is sp2 hybridised if the steric number is 3. Since C2 has three sigma bonds, its hybridization is sp2. Since C3 has two sigma bonds, C2 hybridises with C3.
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Lewis dot structure of PSI3 with minimized formal charges
We need to know how many valence electrons are present in a given molecule in order to determine its Lewis dot structure.
What is Lewis dot structure?Lewis dot structure is defined as the visual representation of atoms' electrons using a diagram. It describe the bonds that exist between a molecule's lone pairs of electrons and its atoms.
A lone pair of electrons on the atom with the formal charge of 1- can typically be converted into a bonding pair that is shared with the atom that has the formal charge of 1+ in order to reduce the formal charges when they are present.
Thus, we need to know how many valence electrons are present in a given molecule in order to determine its Lewis dot structure.
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From the 2 enthalpy profile diagrams, state which
one is likely to represent this reaction 6C(s) + 6H2(g) + 3O2(g) → C6H12O6(s) Hf = -1086.4 kJ mol-1 and give a reason why.
Answer:
Diagram A
Explanation:
The information tells us that Hf = -1086.4 kJ mol-1. Since the value is negative, this tells us that the reaction is exothermic. In an exothermic reaction, energy is given out to the surroundings, thus the arrow must go from the reactants to the products to show the drop in enthalpy.
4. which of the following are not the intermediates in fisher esterification reaction between acetic acid and ethanol? h oh hcl h cl cl h o o b 1234 oh o o a 2347 oh o oh c 1245 o o oh d 124567 oh o e 45 1 2 3 4 5 oh oh oh 6 7 o o o f 167
All of the acidic impurities present in the reaction mixture could be eliminated with the aid of sodium carbonate. Any acidic contaminant can be detected by the addition of sodium carbonate, which causes carbon dioxide to form.
The initial action can be neutralizing the response, which enables you to isolate the ester product. The addition of sodium bicarbonate, a weak base, could help achieve this. The carboxylic acid and acid catalyst react with sodium carbonate, raising the pH of the solution as a result.
A byproduct of CO2 fuel is created when the natural portion of the reaction aggregate is washed with sodium bicarbonate to remove extra acetic acid. You can release the pressure that develops below by venting the vial.
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Of the following ______ radiation has the longest wavelength and ______ radiation has the greatest energy.
From the list below, gamma ray radiation has the highest energy while visible light has the longest wavelength. The photon is the fundamental unit of all electromagnetic radiation, including visible light.
Only a percentage of visible radiation really causes light to be perceived by the human eye when it interacts with the body. The amount of viewable light that is produced by visible radiation rises with the power (luminous intensity) of the radiation. A periodic wave's wavelength, or the distance over which the wave's shape repeats, is its spatial period. The distance between two adjacent crests, troughs, or zero crossings on a wave are examples of consecutive corresponding points in the same phase. Gamma radiation ionizes in three different ways as it travels through matter: the impact of the photoelectric.
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in the context of small molecules with similar molar masses, arrange the intermolecular forces by strength. you are currently in a ranking module. turn off browse mode or quick nav, tab to move, space or enter to pick up, tab to move items between bins, arrow keys to change the order of items, space or enter to drop. stro
The decreasing order of the strength of the intermolecular forces of the molecule is:
Hydrogen bonding>dipole-dipole forces>london-dispersion forces
What are intermolecular forces?
Intermolecular forces, often abbreviated to IMF, are the appealing and repulsive forces that rise up among the molecules of a substance. those forces mediate the interactions among person molecules of a substance.Intermolecular forces are liable for most of the physical and chemical properties of matter.Forces additionally exist among the molecules themselves and these are together referred to as intermolecular forces. Intermolecular forces are specially liable for the physical traits of the substance.Intermolecular forces are chargeable for the condensed states of count. The particles making up solids and drinks are held together through intermolecular forces and these forces affect a number of the physical properties of rely in those states.To know more about intermolecular forces, click the link given below:
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What is the concentration of F— ions when 369.205 mg of MgF2 (62.3018 g/mol) completely dissociates in 2.686 L of water?
Enter the numeric answer only in the units of mM (millimolar).
Magnesium fluoride is the name of the ionic substance that results from the union of magnesium and fluoride ions. The compound has the chemical formula MgF2 Mg F 2.
What is the chemical formula of a compound with Mg and F?Magnesium fluoride is the name of the ionic substance that results from the union of magnesium and fluoride ions. The compound has the chemical formula MgF2 Mg F 2. Magnesium ion has an oxidation state of +2, while fluorine has an oxidation state of -1. Therefore, two fluoride ions are combined with a magnesium ion to equalize the charges.It consists of one magnesium atom and two fluorine atoms. It contains anions and cations since it is an ionic substance. In comparison to fluorine, magnesium is a metal with a substantially lower electronegativity. Consequently, this chemical is made up of a magnesium cation and two fluoride anions.To learn more about Magnesium fluoride refer to:
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What is the amount of energy required to move an electron from one level to another called?; Is the amount of energy required to move an electron?; How does an electron move between energy levels?; What is an energy orbital?
The term "quantum" refers to the amount of energy needed to move an electron from one energy level to the next higher one.
It also applies here when it comes to moving electrons between levels because it refers to the smallest amount of energy required to do anything. It is a part of quantum physics, which deals with quantum theory and studies levels at which things are molecular, atomic, and subatomic.
A process known as absorption occurs when an atom transitions from its ground state to an excited state by absorbing energy from its surroundings. The electron takes in the energy and advances to a higher level of energy. By dissipating the extra energy it took in during the emission process, the electron returns to the ground state.
The energy of orbitals is the energy required to move an electron from one orbital to another or the energy released when an electron is added from another orbital.
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g reffering to the periodic table, sort the following elements in order of increasing electronegativity: aluminum barium boron cesium calcium carbon fluorine
Increasing electronegativity for the following chemical would be: Florine > Carbon > Boron > Aluminum > Calsium > Cesium > Barium.
When atoms can attract electrons during chemical bonding, they are said to be electronegativity.
Electronegativity rises from left to right across the periodic table. The reason for this is that as the atomic number rises, there are more protons. Due to the growing size of the atoms, electronegativity decreases from top to bottom. As a result, fluorine is regarded as the element with the highest electronegative potential, whereas cesium has the lowest. The electronegativity of a halogen is thought to be high, while that of an alkali metal or an alkaline earth metal is thought to be low.
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oxidation catalysts for a gasoline fuel engine require a temperature of ____to effectively operate.
The required temperature is 500 degrees
Oxidation Catalysts help lower engine emissions through chemical reactions that convert carbon monoxide, hydrocarbons and aldehydes into carbon dioxide and water.Catalytic oxidation are processes that rely on catalysts to introduce oxygen into organic and inorganic compounds. Many applications, including the focus of this article, involve oxidation by oxygen. Such processes are conducted on a large scale for the remediation of pollutants, production of valuable chemicals, and the production of energy.Oxidation catalysis is conducted by both heterogeneous catalysis and homogeneous catalysis. In the heterogeneous processes, gaseous substrate and oxygen (or air) are passed over solid catalysts. Typical catalysts are platinum, and redox-active oxides of iron, vanadium, and molybdenum.
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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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where nonmetallic wiring methods are subject to exposure to chemical solvents or vapors, they shall be inherently resistant to chemicals based upon their being for the specific chemical reagent.
Nonmetallic wiring techniques must be inherently resistant to chemicals based on their identification for the particular chemical reagent when they are exposed to chemical solvents or vapours.
Non-metals are minerals (non-metallic minerals) that are typically not used as a source of raw materials for the extraction of metal. The non-metal group, which is present in a wide range of minerals, is crucial economically. In actuality, aqueous solutions are ones whose solvent is water. According to their chemical makeup, organic solvents can be categorised into three groups: hydrocarbons, oxygen, and halogens. In the sections that follow, we'll discuss the many categories of organic solvents and give some instances of each.
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What would corundum most likely be useful?; What mineral has a hardness of 9 on the Mohs scale?; What hardness is corundum on the Mohs scale?; What rocks have a hardness of 9?
Corundum would most likely be useful in Gemstone Cutting. This is because of the extreme hardness that makes it an abrasive. Generally, both synthetic and natural corundum are used in a number of industrial applications that need its toughness, chemical stability, and hardness.
Corundum is a mineral that has a hardness of 9 on the Mohs scale.
Corundum is a rock with a hardness of 9. According to the data on the Moh's scale, corundum comes after diamond with a hardness scale of 9 below that of the diamond rock which is 10. Corundum comes immediately before Topaz which has a hardness scale of 8.
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grinding glass is the correct answer :)
For some transformation having kinetics that obey the Avrami equation, the parameter n is known to have a value of 1.5. If the reaction is 25% complete after 125 sec, how long (total time) will it take the transformation to go to 80% completion?
Time taken the transformation to go to 80% completion t = 259.04 sec
From Avrami equation we have
Y= 1 - e^{-Kt^n}
here
Y = 50%
T Time of reaction completion = 148 sec
n = 1.8
putting all value to get constant K
0.5=1- e^{-K*148^1.8}
e^{-K*148^1.8} = 0.5
Taking log on both side
-K*148^{1.8} = -0.693
K=8.59 * 10^{-5}
NOW GIVEN
0.85= 1 - e^{- 8.59 * 10^{-5} *t^1.8}
e^{- 8.59 * 10^{-5} *t^1.8} = 0.15
Taking log on both side
- 8.59 * 10^{-5} *t^1.8 = -1.897
t = 259.04 sec
The speed at which a chemical reaction occurs is called the reaction rate, and it is defined as proportional to the increase in the concentration of a product per unit time and to the. decrease in the concentration. of a reactant per. unit time. Reaction rates. can vary significantly. For instance, cellulose burns in a fire in a matter of fractions of a second, unlike the sluggish, years-long oxidative corrosion of iron under the Earth's atmosphere. The rate typically decreases with time for most reactions. Monitoring the concentration alterations over time allows one to calculate the pace of a reaction.
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in the electrolysis of water, how long will it take to produce 235.0 l of h2 at 1.0 atm and 273 k using an electrolytic cell through which the current is 221.0 ma? 1st attempt see hint hours
In the electrolysis of water, will it take to produce 235.0 l of H₂ at 1.0 atm and 273 k using an electrolytic cell through which the current is 221.0 mA is 25448 hour.
The ideal gas equation is given as :
P V = n RT
pressure , P = 1 atm
volume , V = 235.0 L
temperature , T = 273 K
gas constant, R = 0.082 atm L /mol K
n = P V / R T
n = (1 × 235 ) / ( 273 × 0.082)
n = 10.49 mol
the reaction is given as :
2H⁺ + 2e⁻ ----> H₂
number of electrons = 2
1 mole of electron = 96500 C
10.49 of electron = 10.49 × 2 × 96500
= 2024570 C
I = 221 mA = 0.221 C/s
q = It
t = q / I
t = 2024570 / 0.221
t = 9160950 s
t = 25448 hour
Thus, in the electrolysis of water, the tike taken is 25448 hour.
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to see amino acids on a developed chromatography paper or plate, you can react it with choose... after
Amino acids are colourless compounds. In order to see the spots on the chromatogram, you will apply a solution of ninhydrin to the paper. Ninhydrin will react with the amino acid to produce a purple compound. Silica gel will serve as the stationary phase in the thin layer chromatography procedures.
Ninhydrin (or fluorescamine) is very useful in chromatographic methods for the analysis of amino acids. One of these is paper chromatography, wherein amino acids are separated as the consequence of differences in their partition coefficients between water and an organic solvent. The aqueous phase is held stationary in the pores of the paper because of strong interaction of the water with the hydroxyl functions of the cellulose. The differences in partition coefficients show up as differences in rates of migration on the surface of moist (but not wet) paper over which there is a slow flow of a water-saturated organic solvent.
In chemical analysis, chromatography is a laboratory technique for the separation of a mixture into its components. The mixture is dissolved in a fluid solvent called the mobile phase, which carries it through a system on which a material called the stationary phase is fixed.
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sodium thiosulfate, na2s2o3, is a water-soluble fixing agent used in photography. which of the statements below is true about na2s2o3? na2s2o3 can dissolve in water. na2s2o3 cannot dissolve in water.
Sodium thiosulfate is the inorganic compound with chemical formula Na2SO3. It is white, water-soluble solid and is used as an antioxidant and preservative.
Why is NA2S2O3 used in photography?Because of its complex forming property, NA2S2O3 removes undeveloped silver halides from photographic emulsions.
Na2S2O3 is used by photographers to fix developed negatives and prints as it acts by dissolving the part of silver salts coated on film which remains unchanged by the exposure to light.
Fixation is achieved by treating film or paper with solution of thiosulfate salt. Popular salts sodium thiosulfate (commonly called hypo) and ammonium thiosulfate are used in modern rapid fixer formulae.
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Which of the following best describes a galvanic cell?
Galvanic cell is a device that converts chemical energy into electrical energy.
An electrochemical cell that converts the chemical energy of spontaneous redox reactions into electrical energy is known as a galvanic cell or a voltaic cell. Galvanic cell Voltaic cell is an electrochemical cell that makes use of chemical reactions to generate electrical energy.
A galvanic cell consists of two half-cells, such that the electrode of one half-cell is composed of the metal A, and the electrode of the other half-cell is composed of metal B; the redox reactions for the two separate half-cells.
Galvanic cells harness the electrical energy available from the electron transfer in a redox reaction to perform useful electrical work. The key to gathering the electron flow is to separate the oxidation and reduction half-reactions, connecting them by a wire, so that the electrons must flow through that wire
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TRUE/FALSE. a chemist prepares a solution of aluminum chloride by measuring out of aluminum chloride into a volumetric flask and filling the flask to the mark with water.
A chemist prepares solution of aluminum chloride by measuring out of aluminum chloride in volumetric flask and filling the flask to mark with water : True.
How is solution of aluminum chloride prepared?An aqueous solution of aluminum chloride is prepared by the redox reaction between aluminum metal and dilute hydrochloric acid.
Aluminum chloride solutions is moderate to highly concentrated liquid solutions of Aluminum chloride. Aluminum chloride is one of the most powerful Lewis acid.
Generally, it is used in reactions as a catalyst and aqueous aluminum chloride is prepared by dissolving aluminum with concentrated hydrochloric acid. After reacting with compound, it reacts with water molecule and forms aqueous solution.
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Which of the following is a source of methane gas?
Human respiration
Trees and plants
Warming oceans
Natural gas leaks
Trees and plants are the dominant sources of methane gas emissions. Therefore, option (B) is correct.
What is methane gas?Methane can be described as a chemical compound with the chemical formula CH₄. Methane can be described as a group-14 hydride, the simplest alkane, and the main component of natural gas. The abundance of methane makes it an economically attractive fuel.
Naturally, occurring methane can be found both below ground and under the seafloor and is produced by both geological and biological processes. The largest reservoir of methane gas is found under the seafloor in the form of methane clathrates.
The methane concentration in Earth's atmosphere has increased by about 150% and it accounts for 20% of the total radiative emission from all of the long-lived and mixed greenhouse gases.
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Hydrogen peroxide, H2O2, decomposes according to the equation above. This reaction is thermodynamically favorable at room temperature.
(a) A particulate representation of the reactants is shown below in the box on the left. In the box below on the right, draw the particulate representation of all the molecules that would be produced from these four reactant molecules.
Hydrogen peroxide, H2O2, decomposes as 4H₂O₂ → 4H₂O + 2O₂ when four reactant molecules are used.
The following diagram illustrates how hydrogen peroxide decomposition chemically: 2H₂O₂ → 2H₂O + O₂
As a result, one oxygen molecule and two water molecules result from the breakdown of two hydrogen peroxide molecules. Numerous chemical substances spontaneously react with molecular oxygen to produce peroxides in the form of free radicals. Given that there are four hydrogen peroxide molecules breaking down in the diagram, we have;
4H₂O₂ → 4H₂O + 2O₂
The breakdown of hydrogen peroxide, H2O2, into water and oxygen gas is the first stage of this reaction. At room temperature, this reaction is thermodynamically advantageous.
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a common intermediate in the conversion of glycerol and lactate to glucose is which of the following?
A common intermediate in the conversion of glycerol and lactate to glusoce is glucose-6-phosphate.
Glycerol is an alcohol sugar which is composed of two polyols produced during the saponification of fats and oils. Triglycerides and phosphatidyl phospholipids are two alcohol sugars that serve as metabolic intermediates.
The RBC's in our blood that transports oxygen from lungs to other parts of our body and muscle tissues produce lactic acid.
The common intermediate in the conversion of glycerol and lactate to glucose is glucose-6-phosphate. In the gluconeogenesis pathway, glucose enters as DHAP. It bypasses through other compounds viz. phosphonyl pyruvate, pyruvate, oxaloacetate and malate. Lactate also passes through these on its way in glucose synthesis.
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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 r shows the hightest percentage of equatorial conformation at equilibrium? select the single best answer.
The r shows axial conformation at the equilibrium of the cyclohexane and mono groups.
Axial: In cyclohexane, a bond that is parallel to the axis of the ring, or a set connected via way of means of this type of bond. A = axial positions; E = equatorial positions.
Because the axial function locations the R corporations in the direction of the hydrogen atoms on the opposite carbons, the axial conformation calls for better to triumph over the extra steric interactions. This outcomes in R values which can be weighted toward the equatorial conformation. The larger, greater complicated the R group, the greater electricity this is required to triumph over the delivered steric interaction.
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