which of the following is the correct mechanism for the sn2 reaction that occurs when chlorocyclohexane is treated with a cyanide ion?
Answers
Sn2 reaction is a reaction which is known to be nucleophilic. This reaction occurs step by step and is a type of substitution reaction.
In Sn2 reaction a lone pair from the nucleophile attacks on a place of electron deficiency.
This reaction follows a second order kinetics. It is single step reaction and both bond forming and breaking will occur at the same time.
The chlorocyclohexane is a single bonded hexane structure.
It has Cl on the ortho position.
Cyanide is a triple bonded structure, sharing a triple bond between the C and N. It also has 2 lone pairs and a negative charge on C.
When we react these two compounds then after the Sn2 reaction, we get a new structure called cyno-cyclohexane. In this reaction, the cyanide will attack at ortho place replacing Cl with CN and Cl will be released.
Therefore, in this Sn2 reaction, the new compound formed will be cyno-cyclo-hexane.
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Related Questions
A rock is placed on a scale and gives a reading of 85.39 grams. The rock is then placed in a graduated cylinder with 58.12 mL of water, the water rises to a volume of 73.54mL.
What is the density of the rock? (you answer must have a total of 2 decimals)
Answers
The density of the rock is 2.01 g/mL, which means that it is a relatively dense rock compared to other materials.
To find the density of the rock, we need to use the formula: density = mass/volume. First, we have the mass of the rock which is 85.39 grams. Next, we need to find the volume of the rock. We can do this by subtracting the initial volume of the water in the graduated cylinder (58.12 mL) from the final volume after the rock was added (73.54 mL). This gives us a volume of 15.42 mL.
Now we can plug in the values to the formula: density = 85.39 g/15.42 mL = 2.01 g/mL.
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In 1665, Robert Hooke observed an image similar to the one shown using a very simple microscope.
Which of the following describe the individual structural units of living matter that Robert Hooke observed?
Answers
Answer :Yet Hooke was perhaps the single greatest experimental scientist of the describing elasticity that is still used today ("Hooke's Law"); assisted Robert Boyle the history of biology largely rests on his book Micrographia, published in 1665. than his compound microscope, but found simple microscopes difficult to use: he
Explanation: think you
Explain why mass is used to measure the properties of solids, liquids, and gases.
Answers
Answer: Mass takes into account the force of gravity.
Explanation:
MgCl2 (aq) + K2SO4 (aq) --> 2KCl (aq) + MgSO4 (s)
how many moles of potassium chloride are produced from 4.8 moles of magnesium chloride
Answers
Answer:
\(\boxed {\boxed {\sf 9.6 \ mol \ KCl}}\)
Explanation:
We must use stoichiometry to solve this, which is the calculation of reactants and products in a reaction using ratios.
Let's analyze the reaction given.
\(MgCl_2 _{(aq)} + K_2SO_4 _{(aq)} \rightarrow 2KCl _{(aq)} + MgSO_4 _{(s)}\)
Now, look at the coefficients, or numbers in front of the molecule formulas. If there isn't a coefficient, then a 1 is implied.
We want to find how many moles of potassium chloride (KCl) are produced from 4.8 moles of magnesium chloride (MgCl₂). Check the coefficients for these molecules.
MgCl₂: no coefficient= coefficient of 1 KCl: coefficient of 2The coefficient represents the number of moles. Therefore, 1 mole of magnesium chloride produces 2 moles of potassium chloride. We can set up a ratio using this information.
\(\frac { 1 \ mol \ MgCl_2} {2 \ mol \ KCl}\)
Multiply by the given number of moles of magnesium chloride: 4.8
\(4.8 \ mol \ MgCl_2 *\frac { 1 \ mol \ MgCl_2} {2 \ mol \ KCl}\)
Flip the ratio so the moles of magnesium chloride cancel out.
\(4.8 \ mol \ MgCl_2 *\frac {2 \ mol \ KCl} { 1 \ mol \ MgCl_2}\)
\(4.8 *\frac {2 \ mol \ KCl} { 1 \ } }\)
\(4.8 * {2 \ mol \ KCl}\)
\(9.6 \ mol \ KCl\)
9.6 moles of potassium chloride are produced from 4.8 moles of magnesium chloride.
The ________________ quantum number defines the shape of an orbital.
A) spin
B) magnetic
C) principal
D) angular momentum
E) psi
Answers
Answer:
angular momentum
Explanation:
A 75.0-ml sample of 0.0500 m hcn it titrated with 0.370 m naoh. what is the approximate ph of the solution after 3.0 ml of 0.370 m naoh has been added?
Answers
The approximate pH of the solution after 3.0 mL of 0.370 M NaOH has been added is approximately 8.91.
To find the approximate pH of the solution after 3.0 mL of 0.370 M NaOH has been added, we need to consider the reaction between HCN (a weak acid) and NaOH (a strong base).
First, calculate the moles of HCN present in the initial 75.0 mL sample:
Moles of HCN = (0.0500 M) x (0.0750 L)
= 0.00375 moles
Next, calculate the moles of NaOH added:
Moles of NaOH = (0.370 M) x (0.0030 L)
= 0.00111 moles
Since HCN and NaOH react in a 1:1 ratio, the remaining moles of HCN can be calculated by subtracting the moles of NaOH from the initial moles of HCN:
Remaining moles of HCN = 0.00375 moles - 0.00111 moles
= 0.00264 moles
Finally, calculate the new concentration of HCN in the solution:
New concentration of HCN = (0.00264 moles) / (0.0780 L)
= 0.0338 M
To find the approximate pH, we can use the Henderson-Hasselbalch equation:
pH = pKa + log([A-]/[HA])
Since HCN is a weak acid, we need to find the pKa value. The pKa of HCN is approximately 9.21.
Plugging in the values, we have:
pH = 9.21 + log([CN-]/[HCN])
Since NaOH reacts with HCN to form CN-, and the reaction is 1:1, the concentration of CN- is equal to the concentration of NaOH added, which is (0.00111 moles) / (0.0780 L) = 0.0142 M.
Plugging in the values, we have:
pH = 9.21 + log(0.0142/0.0338)
= 8.91 (approximately)
Therefore, the approximate pH of the solution after 3.0 mL of 0.370 M NaOH has been added is approximately 8.91.
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All atoms of the same element must have the same number of what?
A.protons.
B.neutrons.
C.compounds.
D.electrons.
Answers
Answer:
A. protons
I hope this helps!
Answer:
A.
Explanation:
i just took the test and chose A.protons. lily~chan hopes she helps
9 A certain type of bacteriophage replicates by incorporating its own genetic material into the host genome
where it is passed on to future generations over time. This type of viral reproduction is known as
A) binary fission
B) budding
C) the lysogenic cycle
D) the lytic cycle
Answers
Answer: b
Explanation: cheese
define colloids with examples.
Answers
Answer:
consisting of microscopically dispersed insoluble particles is suspended throughout another substance. However, some definitions specify that the particles must be dispersed in a liquid, and others extend the definition to include substances like aerosols and gels.
Use The Periodic Table To Determine The Number Of 2p Electrons In F. Number Of 2p Electrons: Use The Periodic Table To Determine The Number Of 3p Electrons In Si, Number Of 3p Electrons: Use The Periodic Table To Determine The Number Of 3d Electrons In Fe. Number Of 3d Electrons: Use The Periodic Table To Determine The Number Of Ap Electrons In Kr. Number Of
Answers
Using the periodic table the number of electrons is determined as;
Fluorine (F) has 5 electrons in 2p orbital.
Silicon (Si) has 2 electrons in 3p orbital.
Iron (Fe) has 6 electrons in 3d orbital.
Krypton (Kr) has 6 electrons in 4p orbital.
The number of electrons in each orbital or the electronic configuration can be determined by the Aufbau principle, along with other principles such as the Pauli exclusion principle and Hund's rule.
1. The atomic number of Fluorine is 9, which means it has 9 electrons. In the ground state, 2 electrons are in the 1s orbital, 2 electrons are in the 2s orbital, and 5 electrons are in the 2p orbital. Therefore, the number of 2p electrons in F is 5.
2. The atomic number of Silicon is 14, which means it has 14 electrons. In the ground state, 2 electrons are in the 1s orbital, 2 electrons are in the 2s orbital, 6 electrons are in the 2p orbital, and 2 electrons are in the 3s orbital. Therefore, the number of 3p electrons in Si is 2.
3. The atomic number of Iron is 26, which means it has 26 electrons. In the ground state, 2 electrons are in the 1s orbital, 2 electrons are in the 2s orbital, 6 electrons are in the 2p orbital, 2 electrons are in the 3s orbital, and 6 electrons are in the 3p orbital. Therefore, the number of 3d electrons in Fe is 6.
4. The atomic number of Krypton is 36, which means it has 36 electrons. In the ground state, 2 electrons are in the 1s orbital, 2 electrons are in the 2s orbital, 6 electrons are in the 2p orbital, 2 electrons are in the 3s orbital, 6 electrons are in the 3p orbital, 10 electrons are in the 3d orbital, and 2 electrons are in the 4s orbital. Therefore, the number of 4p electrons in Kr is 6.
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Need help in science earths moving surface
Answers
Answer:
All answers stated below:
Explanation:
1. Plate Tectonics
2. lithosphere
3. asthenosphere
4. divergent boundary
5. (not sure)
6. convergent
7. transform
8. convection
Identify the Bronsted acids and bases in the following equation (multiple choice)
Answers
Reactions according to Bronsted are those in which there is an exchange of H+ ions. The Bronsted acid will be the substance that donates H+ ions and the base will be the compound that receives them.
As a result we will have a conjugated acid and a conjugated base. The conjugate acid will be the former base that just received the H+ ions. The conjugate base will be the former acid that donated its H+ ions.
Now let's look at the reaction. On the reactants side the compound that can donate H+ ions will be HSO3- and the compound CN- will be the one that receives them. Therefore, HSO3 will be the Bronsted acid (A) and CN will be the base (B).
HSO3 ---> A
CN -----> B
Now let's look at the product side. The compound that received the H+ ions will be the compound HCN, so this will be the conjugate acid (Ac). And the compound that lost its H+ ions is SO3, so it will be the conjugate base (Bc).
HCN --->Ac
SO3 ---->Bc
Comparing the analysis that we did with the reaction we will have that:
\(\begin{gathered} HS_{}O^-_3+CN^-\rightleftarrows HCN+SO^{2-}_3 \\ A+B\rightleftarrows Ac+Bc \end{gathered}\)So, the answer will be option number 5
A bad case of tonsillitis can sometimes affect a person’s breathing.How is this possible ?
Answers
Answer:
Tonsillitis is inflammation of tonsils. It is caused by viral infection and very rarely by bacterial infection.
It is a very serious problem in case of children, adults and teenagers. The continuous coughing can lead to swelling in the throat which in case affects the passage of airways.
This hindered air passage can cause breathing problems. The inflammation can also affect the passage of air and affects breathing.
Explanation:
an acid such as hydrochloric acid (hcl) that ionizes freely, gives up most of its hydrogen ions, and can markedly lower the ph of a solution is known as what type of acid?
Answers
An acid such as hydrochloric acid (HCl) that ionizes freely and gives up most of its hydrogen ions is known as a strong acid. Strong acids have a very low pH and can markedly lower the pH of a solution, making it more acidic.
When dissolved in water, HCl dissociates almost completely into H+ and Cl- ions, making it a strong electrolyte. Other examples of strong acids include sulfuric acid (H2SO4), nitric acid (HNO3), and hydroiodic acid (HI). Strong acids are important in many chemical reactions and are commonly used in laboratories and industries. However, they can also be hazardous and must be handled with care. The strength of an acid is related to its ability to donate hydrogen ions (protons), and is measured on a scale called the pH scale. The pH scale ranges from 0 to 14, with 7 being neutral. Acids have a pH lower than 7, while bases have a pH higher than 7.
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Which statement is true of the particles that make up a substance?
A. Particles in a liquid have more energy than particles in a gas.
B. Particles in a solid have more energy than particles in a gas.
C. Particles in a gas have more energy than particles in a liquid.
D. Particles in a liquid and particles in a solid have the same amount
of energy
Answers
Answer:B
Explanation:
the particles in a gas are more far apart and have more kinetic energy than liquid because they are more close together and have less kinetic energy than gas.
what characteristic of a star indicates whether a star is moving toward or away from the eart
Answers
Answer:
For example, if a star is moving toward us, its lines will be observed at shorter wavelengths, which is called "blueshifted". If the star is moving away from us, the lines will appear at longer wavelengths, which is called "redshifted".
(please pick as brainlest)
express balanced equations for the production of nitric acid from nitrogen
Answers
There are several methods for producing nitric acid from nitrogen, but two common methods are:
1. Ostwald process:
4 NH3(g) + 5 O2(g) → 4 NO(g) + 6 H2O(g)
2 NO(g) + O2(g) → 2 NO2(g)
3 NO2(g) + H2O(l) → HNO3(aq) + HNO2(aq)
Overall equation:
4 NH3(g) + 3 O2(g) + H2O(l) → 2 HNO3(aq) + 2 NO(g)
2. Birkeland-Eyde process:
N2(g) + 3 H2(g) → 2 NH3(g)
2 NH3(g) + 3 O2(g) → 2 NO(g) + 3 H2O(g)
2 NO(g) + O2(g) → 2 NO2(g)
3 NO2(g) + H2O(l) → 2 HNO3(aq) + NO(g)
Overall equation:
N2(g) + 3 O2(g) + 3 H2(g) → 2 HNO3(aq)
True or false? A metal will always be produced at one electrode during electrolysis.
Answers
Yes, a metal will always be produced at one electrode during electrolysis.
What is electrode?
An electrode is an electrical conductor used to make contact with a nonmetallic part of a circuit.
An electrode can be anode or cathode. During electrolysis, that is , the decomposition of a chemical compound by electricity, a metal will be deposited at the cathode.
Thus, a metal will always be produced at one electrode during electrolysis.
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Answer: FALSE
Explanation: Often, gases rather than metals form at electrodes, especially if it involves the electrolysis of a solution.
The students in Mrs. Jamison's class were conducting a lab experiment to determine the if temperature affected how fast 2 drops of food coloring mixed into water. They used frozen water, refrigerated water, room temperature water, and hot water. Which water allowed the food coloring to mix the fastest?
A) Hot water
B) Frozen water
C) Refrigerated water
D) Room temperature water
Answers
Answer:
A
Explanation:
Question 7 of 10 Which statement is the best description of a chemical bond? O A. A chemical bond holds atoms together. OB. A chemical bond connects 2 different molecules. OC. A chemical bond turns molecules into atoms. OD. A chemical bond identifies atoms in a molecule.
Answers
The best description of a chemical bond is A: "A chemical bond holds atoms together."
A chemical bond refers to the force of attraction between two or more atoms that holds them together to form a stable chemical compound. Atoms bond together by sharing, gaining, or losing electrons, resulting in the formation of molecules or compounds.
Chemical bonds are essential for the formation of substances and play a crucial role in determining the properties and behavior of matter. They involve the interaction of valence electrons, the outermost electrons in an atom, which are responsible for chemical bonding.
In summary, option A provides the most accurate and comprehensive description of a chemical bond, emphasizing its role in holding atoms together to form stable compounds. Therefore, Option A is correct.
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Organic compounds are a source of _______.
Answers
Answer:
Petroleum and coaltar are the main sources of organic compounds. (edit: Protein is most likely correct because I did some further research and I am mistaken I believe the other answer is right because it is also found to be a source of energy aka protein)Explanation:
Which of the following is NOT a reason why chemical bonds are important? *
a:Bonds are used to make new substances.
b:Building and breaking bonds are part of the energy cycle.
c:Bonds create new elements.
d:Chemical bonds sustain life.
Answers
Answer:
the answer would be B :)
The correct answer is; Bonds create new elements
Chemical bonds are formed when two or more atoms are joined together to form a compound.
Chemical compounds are more stable than the respective elements from which they are formed.
Chemical bonds do not create new elements.
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When no more solute will dissolve in a solvent, the solution is_________.
Answers
Answer:
saturated solution because it can only dissolve upto fixed temperature
Answer:
Saturated
Explanation:
Explanation from online:
"When the solution equilibrium point is reached and no more solute will dissolve, the solution is said to be saturated. A saturated solution is a solution that contains the maximum amount of solute that is capable of being dissolved."
Stay Safe, and I hope this helps!!!!
shi a, mou b, correll jc. association analysis for oxalate concentration in spinach. euphytica. 2016;212(1):17–28
Answers
Oxalate concentrations ranged widely from 53.4 to 108.8 mg/g on a dry weight basis and 647.2 to 1286.9 mg/100 g on a fresh weight basis, exhibiting a variation that was close to normal.
Association analysis for oxalate concentration in spinachSpinach oxalate content reduction is a key breeding goal. Conducting association analysis and locating SNP markers connected to oxalate concentration in spinach germplasm were the main objectives of this study. The association analysis of oxalate concentration employed a total of 310 spinach genotypes, including 300 USDA germplasm accessions and ten commercial cultivars. 841 SNPs were found among the genotypes tested for the association study using genotyping by sequencing. Oxalate concentration in spinach varies widely, indicating that it is a complicated quantitative property that may be regulated by a number of genes, each of which has a little impact on the tested spinach panel.With the aid of SNP markers, breeders may be able to choose germplasm for spinach breeding projects with lower oxalate concentrations.learn more about oxalate here
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What is an emission spectrum? Does it show the energy that was released or absorbed
Answers
Answer:
Released
Explanation:
Difference between Duplet elements and octel elements?
Answers
Explanation:
octet is an atom or an ion having a maximum of eight electrons in the outermost shell while duplet is an atom having the maximum of two electrons in the outermost shell
Pls help me I don’t know how to do this
Answers
Explanation:
We have a 63.9 g sample of calcium hydroxide. First we have to convert those grams into moles. To do that we have to use the molar mass of calcium hydroxide.
Calcium hydroxide = Ca(OH)₂
molar mass of Ca = 40.08 g/mol
molar mass of O = 16.00 g/mol
molar mass of H = 1.01 g/mol
molar mass of Ca(OH)₂ = 1 * 40.08 g/mol + 2 * 16.00 g/mol + 2 * 1.01 g/mol
molar mass of Ca(OH)₂ = 74.10 g/mol
mass of Ca(OH)₂ = 63.9 g
moles of Ca(OH)₂ = 63.9 g /(74.10 g/mol)
moles of Ca(OH)₂ = 0.862 moles
In 1 molecule of Ca we have 2 atoms of O. So in 1 mol of Ca(OH)₂ we will have 2 moles of O atoms.
1 mol of Ca(OH)₂ = 2 moles of O atoms
moles of O atoms = 0.862 moles of Ca(OH)₂ * 2 moles of O /1 mol of Ca(OH)₂
moles of O atoms = 1.724 moles
One mol is similar to a dozen. When we say that we need a dozen eggs we know that we need 12 eggs. If we want a mol of eggs, we want 6.022*10^23 eggs. So one mol of something is 6.022 * 10^23 of that.
1 mol of O atoms = 6.022 * 10^23 atoms
n° of O atoms = 1.724 moles * 6.022 * 10^23 atoms/1 mol
n° of O atoms = 1.04 * 10^24 atoms
Answer: In a 63.9 g sample of Ca(OH)₂ we have 1.04 *10^24 atoms of oxygen.
PLEASE ASAP
A calcium atom has 20 protons, 18 electrons, and 20 neutrons. What is the charge on the atom?
Answers
Answer:
Ca2+ represents an ion with 20 protons and 18 electrons.
Explanation:
A calcium atom has 20 protons and 20 electrons. The 2+ charge next to the symbol indicates a loss of two electrons: 20-2=18.
Many alloys, such as brass (made from zinc and copper) is a solid
…………..in which the atoms of two or more metals are uniformly mixed.
*solution
*suspension
*colloid
*pure substance
Answers
Answer:
solution
Explanation:
Alloy is solid solution as it is a mixture of two or more metals or a metal and a non-metal.
When 13.4 g of an unknown, non-volatile, non-electrolyte, X was dissolved in 100. g of benzene, the vapor pressure of the solvent decreased from 100 torr to 90.9 torr at 299 K. Calculate the molar mass of the solute, X.
Answers
The molar mass of the solute, X is 35.37 g/mol. We used the formula to calculate the molar mass of the solute, X. We also used Raoult's Law to find out the mole fraction of the solute, XB. We then substituted the given values in the formula to find out the molar mass of the solute, X.
When 13.4 g of an unknown, non-volatile, non-electrolyte, X was dissolved in 100. g of benzene, the vapor pressure of the solvent decreased from 100 torr to 90.9 torr at 299 K. Calculate the molar mass of the solute, X, Molar mass is defined as the mass of one mole of a substance. The formula used to calculate molar mass is as follows: Molar mass (M) = Mass (m) ÷ Number of moles (n)For non-volatile, non-electrolyte solutions, the formula used to calculate the molar mass of the solute is as follows: P = P°A × XB × Kb × nA/ V bwhere, P is the change in the vapor pressure of the solvent P°A is the vapor pressure of the pure solvent XB is the mole fraction of the solute Kb is the molal boiling point elevation constant nA is the number of moles of the solute Vb is the volume of the solvent in kg The given data is: Molar mass of the solute, X = Mass of the solute, X = 13.4 g Mass of the solvent, benzene = 100 g Change in vapor pressure, ΔP = 100 - 90.9 = 9.1 torr Vapor pressure of the pure solvent, P°A = 100 torr Temperature, T = 299 K Molal boiling point elevation constant, Kb = 2.53 °C/m Volume of the solvent in kg, Vb = 100/1000 = 0.1 kg We can use Raoult's Law to find out the mole fraction of the solute, XB. It states that the vapor pressure of the solvent in a solution is directly proportional to the mole fraction of the solvent present in the solution. Mathematically, it can be represented as: P = PA° × XA where, P is the vapor pressure of the solution PA° is the vapor pressure of the pure solvent XA is the mole fraction of the solvent in the solution The mole fraction of the solute, XB is given by: XB = 1 - XA The mole fraction of the solvent, XA can be calculated as follows :XA = PA/P°A = (100 - 9.1)/100 = 0.909XB = 1 - XA = 1 - 0.909 = 0.091Now, we can substitute the given values in the formula to find out the molar mass of the solute, X.ΔP = P°A × XB × Kb × nA/Vb9.1 = 100 × 0.091 × 2.53 × nA/0.1nA = 0.3788 moles Molar mass (M) = Mass (m) ÷ Number of moles (n)M = 13.4 ÷ 0.3788M = 35.37 g/mol Therefore, the molar mass of the solute, X is 35.37 g/mol.
In this question, we are given the mass of an unknown, non-volatile, non-electrolyte solute, X and the vapor pressure of the solvent, benzene at two different temperatures. We are required to calculate the molar mass of the solute, X. The molar mass of a substance is defined as the mass of one mole of the substance. It is usually expressed in g/mol. The formula used to calculate molar mass is as follows: Molar mass (M) = Mass (m) ÷ Number of moles (n)We are given the mass of the solute, X as 13.4 g. Therefore, we need to find the number of moles of the solute, X to calculate its molar mass. We can use the formula to calculate the molar mass of the solute if we know its boiling point elevation constant, Kb, molality, temperature, volume of the solvent in kg, and change in vapor pressure. The solute is non-volatile, non-electrolyte. Therefore, we can use Raoult's Law to find out the mole fraction of the solute, XB. It states that the vapor pressure of the solvent in a solution is directly proportional to the mole fraction of the solvent present in the solution. Mathematically, it can be represented as: P = PA° × XA where, P is the vapor pressure of the solution PA° is the vapor pressure of the pure solvent XA is the mole fraction of the solvent in the solution We can find out the mole fraction of the solvent, XA as follows: XA = PA/P°A = (100 - 9.1)/100 = 0.909We can find out the mole fraction of the solute, XB as follows: XB = 1 - XA = 1 - 0.909 = 0.091 Now, we can substitute the given values in the formula to find out the molar mass of the solute, X.ΔP = P°A × XB × Kb × nA/Vb9.1 = 100 × 0.091 × 2.53 × n A/0.1nA = 0.3788 moles Molar mass (M) = Mass (m) ÷ Number of moles (n)M = 13.4 ÷ 0.3788M = 35.37 g/mol Therefore, the molar mass of the solute, X is 35.37 g/mol.
The molar mass of the solute, X is 35.37 g/mol. We used the formula to calculate the molar mass of the solute, X. We also used Raoult's Law to find out the mole fraction of the solute, XB. We then substituted the given values in the formula to find out the molar mass of the solute, X.
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