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Atomic orbitals and molecular orbitals are mathematical functions that describe the behavior of electrons in atoms and molecules, respectively. the attachment 1 below describes the labelling of the atomic and molecular orbitals shown below where there is 2s-2p mixing.
Atomic orbitals are the solutions of the Schrödinger equation for the electron in an isolated atom. They are characterized by the principal quantum number (n), the angular momentum quantum number (l) and the magnetic quantum number (m). Each orbital can hold a maximum of two electrons, one with a spin of +1/2 and the other with a spin of -1/2.Molecular orbitals, on the other hand, are the solutions of the Schrödinger equation for the electrons in a molecule
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the complete question is :
Label each of the atomic and molecular orbitals shown below where there is 2s-2p mixing. O 2s O 2p O sigma_2s O sigma_2s^* O sigma_ 2p O sigma_2p^* O pi_2p O pi_2p^*
Related Questions
Which of the following species contributes more to the overall hybrid for the species in the box? a) I b) II с) I d) IV e) The one in the box. - Z:
Answers
option c 1 contributes more to the overall hybrid for the species in the box among the given boxes
It is because the negative charge must be on the most electronegative element for the resonance structure to be most stable and hence to make more contribution to the hybrid structure. IV is incorrect because look at the lower carbon atom which is bonded to nitrogen. In the original structure it has only two visible bonds that means it is also bonded to two hydrogen atoms. But in IV it has three visible bonds which means only one hydrogen atom. So it is not a correct resonance structure at all.
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The complete question is
Which of the following species contributes more to the overall hybrid for the species in the box? a) I b) II с) I d) IV e) The one in the box. - Z:
5. Give two examples of native Hawaiian living matter.
Answers
Here, "Kanaka Maoli" redirects. See Kanaka (disambiguation) for other uses.
Predict the major organic product that results from hydrogenation of the given alkene as specified. * Use the wedge hash bond tools to indicate stereochemistry where it exists. * You do not have to explicitly draw H atoms.
* If a group is achiral, do not use wedged or hashed bonds on it.
* In cases where there is more than one answer, just draw one.
Answers
In order to give shortenings a hard firmness and plasticity and allow for the manufacturing of solid and semi-solid fats, hydrogenation is the process of saturating some double bonds and converting others to trans configuration.
In the food industry, hydrogen is added to oils (in a procedure called hydrogenation) to make them more solid or "spreadable." In addition to being utilized in the production of numerous meals, including biscuits and cakes, hydrogenated oils can also be sold directly as "spreads" in the food industry. By converting all of the double bonds in the fat to single bonds during full hydrogenation, all unsaturated fats are converted into saturated fats. By substituting a portion of the double bonds with hydrogen, partial hydrogenation decreases some of the double bonds but not all of them.
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When the supplied alkene is hydrogenated, the primary organic molecule that results is a hydrocarbon. Hydrocarbons are found in natural gas, coal, and gasoline.
A hydrocarbon is an elemental chemical compound composed only of the atoms of hydrogen and carbon. Hydrocarbons, which are naturally occurring compounds, are the building blocks of crude oil, natural gas, coal, and other key energy sources. The four categories of hydrocarbons are alkanes, alkenes, alkynes, and aromatic hydrocarbons. The simplest explanation is that chemicals known as hydrocarbons are made up of both hydrogen and carbon, as well as their derivatives (alcohols,aldehydes..etc). The hierarchical series of hydrocarbons has the formula CnH2n+2 for alkanes, CnH2n for alkenes, and CnH2n-2 for alkynes. The term "hydrocarbons" refers to the most basic category of organic substances. As hinted by their name, they are made exclusively of the elements hydrogen and carbon.
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Select the ester that could be used to make 4,6-decanedione by acylation of 2-pentanone. A Ethyl hexanoate. B Ethyl ethanoate. C Ethyl butanoate. Ethylpropanoate. E Ethyl pentanoate.
Answers
By acylating 2-pentanone, ethyl pentanoate serves as the ester that produces 4,6-nonanedione. Acylation is the process of replacing a hydroxyl group in a molecule with an acyl group.
In plain English, what is ester?Any of a group of organic molecules known as esters can react with water to create alcohols and organic or inorganic acids. The most prevalent esters are those made from carboxylic acids. Leopold Gmelin, a German scientist, coined the word "ester" in the first part of the 19th century.
What is the purpose of ester?These and other hazardous esters with unique odors are employed in synthetic tastes, perfumes, and cosmetics. For coatings, paints, and varnishes, some volatile esters, particularly large volumes of ethyl acetate
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What is the major product obtained from the addition of HBr to the following compound?
Answers
1-Bromo-4-methylpentane is the main byproduct of the addition reaction of HBr to 4-methylpent-1-ene in the presence of peroxide.
What is methyl pentane?A branched-chain alkane with the chemical formula C₆H₁₄ is 2-methylpentane, also known as is hexane. A methyl group is attached to the second carbon atom in a pentane chain to form this structural isomer of hexane. A methyl group is substituted at position 3 of the alkane 3-methylpentane, which is pentane. It serves as a lubricant, a solvent in chemical synthesis, and a starting point for making carbon black. It functions as an allelochemical, a human metabolite, and a non-polar solvent. To make the secondary alcohol 3-methyl-2-pentanol, a hydroxy group is added to position 2 of 3-methylpentane. It performs three different roles: biomarker, human xenobiotic metabolite, and plant metabolite.The complete question is:
The major product obtained by the addition reaction of HBr to 4-methylpent-1-ene in the presence of peroxide is:
A) 1-Bromo-4-methylpentane
B) 4-bromo-2-methylpentane
C) 2-bromo-4-methylpentane
D) 3-bromo-2-methylpentane
E) 2-bromo-2-methylpentane
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The "alum" used in cooking is potassium aluminum sulfate hydrate, KAl(SO4)2·x H2O. To find the value of x, you can heat a sample of the compound to drive off all of the water and leave only KAl(SO4)2. Assume you heat 4.74 g of the hydrated compound and that the sample loses 2.16 g of water. What is the value of x?
Answers
The "alum" used in cooking is potassium aluminum sulfate hydrate, KAl(SO4)2·x H2O and the value of x calculated is 12.
What is meant by alum?Alum is a type of chemical compound, usually hydrated double sulfate salt of aluminum having general formula X Al ₂·12 H ₂O, where X is monovalent cation such as potassium or ammonium.
Given mass of KAl(SO₄)₂.XH₂O = 4.74 g
and mass of water = 2.16 g
So, mass of KAl(SO₄)₂ = 4.74 – 2.16 = 2.58 g
Molar mass of KAl(SO₄)₂ ;
= 39 + 27 + 2[32 + (4×26)]
Now, molar mass of KAl(SO₄)₂ = 258 g/mol
Molar mass of H₂O ;
= (2×1) + 16
Now, molar mass of H₂O = 18 g/mol
Hence, KAl(SO₄)₂ = 2.58 / 258 = 0.01
and H₂O = 2.16 / 18 = 0.12
KAl(SO₄)₂ = 0.01 / 0.01 = 1
H₂O = 0.12 / 0.01 = 12
The formula of the compound is obtained as KAl(SO₄)₂.12H₂O
Comparing KAl(SO₄)₂.12H₂O with KAl(SO₄)₂.XH₂O, value of X is 12.
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The dipole moment of BrCl is 0.518 D and the distance between atoms is 213.9 pm.
Part A
What is the percent ionic character of the BrCl bond?
Answers
The percent ionic character of the BrCl bond is 0.0505%.
How to calculate the percent ionic character?One way to calculate the percent ionic character is to multiply the measured dipole moment by the value of eR, then multiply that result by 100. When one charge is totally transferred during the creation of the bond and the subsequent ions are spherical, the value of eR is the value of the dipole moment.We must understand that a difference in electronegativity leads to an increase in the polarity of the connection and the ionic nature. By computing the charge on each atom, we can get the % ionic character. The ionic character percent is determined by dividing the original charge by the charge that is present on a single electron.Here I attached the calculation
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A 25.0 g block of copper (specific heat capacity 0.380 J/g･ °C) at 57.8 °C is placed into 500.0 g of water initially at 20.0 °C. What is the change in temperature (in °C) of the copper block? (The specific heat capacity of water is 4.184 J/g･ °C).
Answers
In order to make the heat values obtained from the equation q=mCsT equal to one another, we set them to that value. (Specific heat capacity: 0.380 J/g) 57.8 block of copper
How do you define "at capacity"?Your capacity or the quantity something can hold are both described by the word capacity. You cannot squeeze another feathery companion into a cage that is already overcrowded without risking the claustrophobia of the birds.
How come capacity is so crucial?Capacity, particularly corporate expansion, unquestionably has a quantifiable impact on every firm. Because it directly affects a company's capacity to expand, compete, and create and maintain a pleasant customer experience, capacity planning is extremely important to business success.
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Show the starting diene and dienophile you could use to prepare the following molecule: CO2CH3 Diene + Dienophile- O Use the wedge/hash bond tools to indicate stereochemistry where it exists.
O If a group is achiral, do not use wedged or hashed bonds on it. O Draw one structure per sketcher. Add additional sketchers using the drop-down menu in the bottom right corner. O Separate multiple reactants using the + sign from the drop-down menu. ору 88te
Answers
Diene: These compounds have a double bond that is conjugated. Dienophile: At least one pi bond exists in these compounds. And occasionally, these pi bonds joined together after some electron withdrawal.
Examples of stereochemistry and what it is:The field of chemistry known as stereochemistry is concerned with "the study of the various spatial configurations of atoms in molecules." The methodical presentation of a particular area of science and technology, known as stereochemistry, typically necessitates a little detour into the past.
How would you define stereochemistry?a discipline of chemistry that examines the spatial configuration of atoms and groups in molecules, as well as how that configuration relates to the attributes of a substance.
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A 100.-milliliter sample of helium gas is placed in a sealed container of fixed volume. As the temp of the confined gas increases from 10°c to 30°c, the internal pressure
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The internal pressure of the container will increase, given that the temperature of the confined gas increases from 10 °C to 30 °C (Option B)
How do I know if the pressure will decrease, increase or remain the same?To determine if the pressure will decrease, increase or remain the same, we shall obtain the new pressure of the container. Details below
The following data were obtained from the question:
Volume = 100 mL = ConstantInitial temperature (T₁) = 10 °C = 10 + 273 = 283 K New temperature (T₂) = 30 °C = 30 + 273 = 202 KInitial pressure (P₁) = PNew pressure (P₂) = ?P₁V₁ / T₁ = P₂V₂ / T₂
Volume = contant
P₁ / T₁ = P₂ / T₂
P / 283 = P₂ / 303
Cross multiply
P₂ × 283 = P × 303
Divide both sides by 283
P₂ = (P × 303) / 283
P₂ = 1.07 × P
From the above calculation, we can see that the new pressure is 1.07 times the initial pressure.
Thus, we can conclude that the internal pressure will increase (Option B)
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Complete question:
A 100.-milliliter sample of helium gas is placed in a sealed container of fixed volume. As the temp of the confined gas increases from 10°c to 30°c, the internal pressure
A. Decreases
B. Increases
C. Remain the same
sample multiple choice question on quantum mechanical atomic model under analysis
sample questions on how ions are formed
Answers
Ions are formed by chemical interactions of accepting or loosing electrons.
What are ions?An ion is defined as an atom or a molecule which has a net electrical charge. There are 2 types of ions :1) cation 2) anion . The cation is the positively charged ion and anion is the negatively charged ion . As they are oppositely charged they attract each resulting in the formation of ionic bond.
Ions consisting of single atom are mono-atomic ions while which consists of two or more ions are called as poly-atomic ions . They are created by chemical interactions . They are very reactive in their gaseous state and rapidly react with oppositely charged ions resulting in neutral molecules.
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Which of the following choices is an example of an acquired trait?
a human is born with brown eyes
a dog’s ears are bandaged so that they stand upright and her tail is docked short
a horse is born with a light-colored mane
a cat is born with black and white fur
Answers
Answer:
a dog’s ears are bandaged so that they stand upright and her tail is docked short
Explanation:
The dog is not born with ears that stand up or a short tail, therefore they are acquired traits.
How can kinetic energy of motion be transformed into other kinds of energy thermal energy
Answers
Answer:
Answer Below ↓
Explanation:
If the moving sand hits an obstacle, it stops due to the friction created by the contact and its kinetic energy is then transformed into thermal energy, or heat.
Total cations =
Total anions =
Answers
There are eight cations (A and B) and four anions in the unit cell as shown here.
What is the unit cell?A unit cell is the smallest repeating unit in a crystal lattice structure. It is defined by the repeating pattern of atoms, ions, or molecules that make up a crystal. The unit cell can be visualized as a small box that is repeated over and over again to form the entire crystal.
The shape and size of the unit cell are unique to each type of crystal and are determined by the arrangement of atoms within the crystal. The study of unit cells is important in understanding the properties and behavior of materials at the atomic scale.
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which of the following has two equatorial alkyl substituents in its most stable conformation?
A.) 1,1-dimethylcyclohexane
B.) cis-1,2-dimethylcylcohexane
C.) cis-1,3-diethylcylcohexane
D.) cis-1,4-diethylcylcohexane
E.) trans-1,3-diethylcylcohexane
Answers
B.) cis-1,2-dimethylcylcohexane has two equatorial alkyl substituents in its most stable conformation
In cyclohexane ring, the most stable conformation is the one that has the lowest energy. The ring can adopt different conformations, such as the chair or the boat, depending on the position of the substituents. The most stable conformation of cyclohexane ring is the one that has maximum number of Substituents in equatorial position and minimum number of substituents in axial positions. The equatorial positions are more stable than the axial positions because they are farther apart and less crowded.In option B, cis-1,2-dimethylcylcohexane, the methyl groups are in equatorial positions, which makes it the most stable conformation among the options given.
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Find an axis of rotation in this molecule. Are there any planes of symmetry?
O There is no axis of symmetry There is no plane of symmetry O There is one axis of symmetry along the axis of the purple and central atom. O There are two axes of symmetry along the axes of the brown and central atom. O The flat molecule lies in the only plane of symmetry
O There are two planes of symmetry, one in the plane of the molecule and one between the two brown atoms along the purple-black axis
Answers
A molecule can be split into two mirror-image halves by employing a hypothetical plane called a plane of symmetry.
What is meant by hypothetical plane?A hypothetical statement is one that is based on hypothetical concepts or circumstances rather than real-world ones. Through a mental modelling process, hypothetical thinking entails picturing potential outcomes and examining their effects.In fact, it is conceivable that there are differences between hypothetical and real choices: hypothetical choices, which have no consequences, might be quick and mindless, requiring fewer cognitive resources, whereas real choices, which are precise, immediate, frequently have higher stakes, and are frequently more emotionally charged. To test intuitions, hypotheticals are an effective tool. A hypothetical does not, in their opinion, accurately portray a real-world circumstance, which is why many individuals find it troublesome. Instead, the only time it poses an issue is when it is falsely depicted as being realistic.Planes of Symmetry
A molecule can be divided into two halves that are mirror images of one another using an imaginary plane known as a plane of symmetry.
The vertical plane in 2-chloropropane, (a), CH3CHClCH3, divides the H atom, the C atom, and the Cl atom.
The CH3 group (brown) on the mirror's right side is a reflection of the CH3 group (brown) on the left side. The split atoms' left and right halves are also.
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Predict the major product(s) you would obtain from sulfonation of o-dichlorobenzene.
Answers
The major product(s) you would obtain from sulfonation of o-dichlorobenzene is attached below.
The sulfonation process: what is it?The process in which a sulfonic group SO₃H is incorporated into a molecule with the ability to donate electrons is known as sulfonation. If the electron donor molecule is a carbon molecule, the reaction's end result can be identified as sulfonic acid.
A chemical process that adds the sulfonic acid functional group (-SO₃H) to an existing molecule. Benzene becomes benzene sulfonic acid through the process of sulfonation with Sulphur trioxide and sulfuric acid.
Sulfonation is an important chemical process that is used to create a variety of sulfonic acid derivatives and sulfonyl chlorides. Many sulfonic acids fall under the general category of RSO₃H, where R stands for an organic substituent like an alkyl or aryl group.
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which of the following molecules would have the greatest proportion of enol at equilibrium?
A. OHC-CH2-CHO
B. CH3COCH2COOCH3
C. CH2(COOH)2
D. CH3COOH
Answers
The molecules would have the greatest proportion of enol at equilibrium is
OHC-CH2-CHO
What are molecules?A group of two or more atoms bound together by the attractive forces known as chemical bonds is referred to as a molecule; depending on the context, the term may or may not include ions that meet this requirement. a substance's tiniest particle possesses all of its physical and chemical characteristics. A single atom or more make up a molecule. Individually neutral particles make up an atom. The bonding of two or more atoms forms molecules, which are neutral entities. An ion is a particle that is positively or negatively charged. Matter includes the stars, the air, the water, the furniture you use every day, the trees and plants in your surroundings, as well as your body and intellect.
The molecules would have the greatest proportion of enol at equilibrium is
OHC-CH2-CHO
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design a synthesis of 2-bromo-1-butyl-4-nitrobenzene from benzene.
Answers
A synthesis of 2-bromo-1-butyl-4-nitrobenzene from benzene is Benzene → Nitration → 2-Nitrobenzene → Bromination → 2-Bromo-nitrobenzene → Alkylation → 2-bromo-1-butyl-4-nitrobenzene. The figure is attached below.
The synthesis of 2-bromo-1-butyl-4-nitrobenzene from benzene can be achieved in several steps.
1. Nitration of benzene: Benzene is nitrated by treating it with a mixture of concentrated nitric acid and sulfuric acid, known as fuming nitric acid. This reaction produces nitrobenzene as the main product.
2. Bromination of the Nitrobenzene: Nitrobenzene is then brominated using bromine in the presence of a Lewis acid such as aluminum bromide. This reaction produces 2-bromo-nitrobenzene as the main product.
3. Alkylation of 2-bromo-nitrobenzene: The 2-bromo-nitrobenzene is then alkylated with 1-butyl lithium to give 2-bromo-1-butyl-4-nitrobenzene as the final product.
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design a synthesis of 2-methyl-2-propanol from 2-methylpropane.
Answers
Synthesis is an analysis method that includes the steps of comparing and contrasting, categorising, and dividing.
What is the meaning of synthesis?
Comparing and contrasting, categorising, and dividing are all aspects of the analysis technique known as synthesis. Synthesis, at its most fundamental level, is the combination of two or more sources while searching for common themes. Finding connections between disparate materials to support your argument is the goal of synthesis.
2-Methylpropene must be changed into 2-Methyl-2-Propanol using a. H2 O/H+. Using an addition reaction, the alkene will be transformed into the necessary alcohol.
Alkene and water react with an acidic medium to produce alcohols in a process known as acid catalysed hydration. As dictated by Markovnikov's rule, this reaction occurs. An acid catalyst and water combine to generate 2-methylpropan-2-ol from 2-methylpropene.
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Does anyone know these answers?
Answers
Correct me if I'm wrong but from my knowledge:
5, 6, 10, 11, 12, 15, 16, 17, 18, 19, and 20 would be a covalent bond
7, and 8 would be a metallic bond
9, 13, and 14 would be an ionic bond
An experiment is performed to determine to determine the molar mass of a solid unknown monoprotic acid (HA) by titration with a standardized NaOH solution. A) What measurements must be made to determine the number of moles of NaOH used in the titration? B) Write a mathematical expression to be used in determining the number of moles used to reach the endpoint of the titration. C) How can you use the information in B) to determine the moles of acid, HA? D) To determine the molar mass of the acid what should be measured about the acid before the titration? E) Write the mathematical expression to calculate the molar mass of the acid. F) Draw the apparatus to be used in this titration indicating what is going to be in each part of the apparatus. G) If the original solid acid was not completely dry before the experiment, would the results be different? In which way? Explain. H) If the original procedure called for dissolving the acid in 25.0 mL , but 35.0 mL were accidentally used, how would the results be affected? Explain.
Answers
The number of moles of NaOH is calculated by multiplying the moles of KHP by the mole ratio of NaOH to KHP, which is found by the balanced chemical reaction previously discussed.
Why is it called titration?A titration is described as "the process of determining the amount of a substance A by adding calibrated increments of substance B, the titrant, with which it reacts until exact chemical equivalency is obtained (the equivalence point)" (Oxford Dictionary of Chemical Terms).
The moles of KHP are multiplied by the mole ratio of NaOH to KHP, which is determined by the balanced chemical reaction mentioned above, to determine the number of moles of NaOH. 3. To determine the molarity of the NaOH solution, divide the moles of NaOH by the amount of NaOH solution needed to reach the titration's endpoint, in this case, litres.
The formula is molarity (M) of the acid x volume (V) of the acid = molarity (M) of the base x volume (V) of the base when the titrant and analyte have a mole ratio of 1:1. The concentration of a solution, measured in moles of solute per litre of solution, is known as its molarity.
Ha has a 268-gram mass per mole in its molar form. Ha is not a recognised chemical symbol for an element.
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Chemists have determined that elements with atomic numbers greater than 92 are all
radioactive. In general, their half-lives are much shorter than the age of the universe. This
means that they no longer exist in nature and have all been artificially produced by
scientists in nuclear reactions.
Elements 93 through 105 in the periodic table have been created and named, and
scientists have claimed discovery of elements 106 and 107. The transuranium elements,
as they are called, become less stable as the atomic number and mass increase. For
example, element number 93, neptunium, has a half-life of two million years, while
element number 104, kurchatovium, has a half-life of 70 seconds.
The transuranium elements are the heaviest elements that exist and are readily
fissionable when subjected to nuclear bombardment. Chemists studying these elements
and the periodic table predict that stable elements may be found around atomic numbers
114 or 126.
Based on the information in the passage, which of the following relationships appears to
be true for those elements 93 through 105?
A. The greater the half-life, the greater the radioactivity.
B. The greater the atomic number, the greater the element stability.
C. The greater the radioactivity, the greater the half-life.
OD. The greater the atomic number, the lower the half-life.
OE. The greater the atomic number, the higher the half-life.
Answers
Answer:
The correct relationship is D. The greater the atomic number, the lower the half-life.
The passage states that the transuranium elements, elements with atomic numbers greater than 92, have short half-lives and become less stable as the atomic number and mass increase. It also gives specific examples of the half-lives of neptunium (element 93) and kurchatovium (element 104) to support this claim. Thus, as the atomic number increases, the half-life of the element decreases.
Which can conduct heat faster metal or air ( gas)? Explain your answer.
Answers
Metals conduct heat faster than air. Air or gas heats up by way of convection, whereas metals are closely packed with one another.
Which can conduct heat faster metal or air gas?substances that are poor conductors of thermal energy are called thermal insulators. Gases such as air and matter such as plastic Metal and wood are thermal insulators.
Metals and stones are examined as good conductors since they can rapidly transfer heat, whereas materials like wood, paper, air, and cloth are the poor maestros of heat. In particular, metals conduct heat better than non-metals, and solids conduct heat better than gases.
So we can conclude that All metals 'can' flatter a gas. If you heat them in a vacuum, all elemental metals can become a gas
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which amino acid has the greatest amount of negative charge at ph = 6.20?
Answers
Answer:
Amino acid alanine
Explanation:
because it is.
for the following reaction sequence, which molecule is expected as the major product?
Answers
The first reaction is an oxidation reaction, which converts molecule A to molecule C using hydrogen peroxide (H2O2) and hydroxide (OH-) as the oxidizing agents.
The second reaction is a further oxidation reaction, which converts molecule C to molecule D using H2O2 and OH- as the oxidizing agents. Therefore, molecule D is expected as the major product of the reaction sequence.
The oxidation of A to C involves the addition of oxygen atoms to the molecule. This process is catalyzed by the presence of hydrogen peroxide (H2O2) and hydroxide (OH-) ions, which act as the oxidizing agents. In the second reaction, the oxidation of C to D involves the further addition of oxygen atoms to the molecule. This process is also catalyzed by H2O2 and OH- ions, resulting in the formation of molecule D as the major product of the overall reaction sequence.
the complete question is : For the following reaction sequence, which molecule is expected as the major product?
[tex]$\ce{A + B - > [\ce{H2O2/OH-}] C - > [\ce{H2O2/OH-}] D}$[/tex]
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what is the use of hexane in contact cement?
Answers
The main use of hexane is as a solvent to extract edible oils from seed and vegetable crops. Hexane are used as solvents for contact cement, varnishes, and inks.
What is hexane used for ?Hexanes are mostly used as a solvent. It is used to extract edible oils from seeds and vegetables and as a cleaning agent. The high levels of hexane causes mild central nervous system effects it includes dizziness, slight nausea, and headache etc.
In the construction industry, the hexane is an effective chemical which is use as the strongest organic solvents. It dissolves chemical material which allows the objects to bind together to form a strong force.
Thus, Hexane are used as solvents for contact cement, varnishes, and inks.
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how many moles are contained in 4.131 x 10^24 particles?
Answers
To find the number of moles contained in 4.131 x 10^24 particles, we need to use Avogadro's number. Avogadro's number, denoted by N, is the number of atoms, molecules, or other entities in one mole of a substance. It is approximately equal to 6.022 x 10^23.
So, we can use this formula to find the number of moles:
moles = (number of particles) / N
Where N = 6.022 x 10^23
Substituting the given value of particles:
moles = (4.131 x 10^24 particles) / (6.022 x 10^23)
moles = (4.131 x 10^24) / (6.022 x 10^23)
moles = 0.6869
So, 4.131 x 10^24 particles contains approximately 0.6869 moles.
a tip link connects two cilia. movement of the cilia in the direction of the tallest cilia will
Answers
a tip link connects two cilia. movement of the cilia in the direction of the tallest cilia will result in the opening of the ion channels located at the tip of the cilia.
A tip link is a thin protein filament that connects the tallest cilia of two neighboring cells. The movement of the cilia in the direction of the tallest cilia, known as the "power stroke," causes the tip link to stretch and pull on the ion channels located at the tip of the cilia, opening them and allowing ions to flow through. This movement of ions is what generates the electrical potential that allows for the detection of sound, fluid flow, or other mechanical stimuli.
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Nitrogen fixation requires the hydrolysis of 8 ATPs to produce 2 NH3 molecules from 1N2.
True or False?
Answers
Nitrogen fixation does result in the release of energy, but the activation of this reaction takes energy in the form of ATP hydrolysis.
Does nitrogen fixation require ATP hydrolysis?Energy is released during the nitrogen fixation process, although ATP hydrolysis is required to start the reaction. Metallocenzymes, or proteins with metallic molecules as subunits, include nitrogenases.
This type of reaction is known as a reduction reaction because it causes N2 to gain electrons (see equation above). Due to technological challenges biochemists face in actually viewing this reaction in vitro, the precise mechanism of catalysis is unknown, and the precise order of the steps of this reaction is not fully understood.
Despite this, a lot is understood about the process. The equilibrium synthesis of ammonia from molecules of hydrogen and nitrogen has a negative enthalpy of reaction overall, which means it releases energy, but the energy barrier.
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