cis-1,2-Dimethylcyclohexane is achiral, not because there is a plane of symmetry, but because it consists of two enantiomeric conformations which interconvert rapidly via ring flipping at normal temperatures.
Answers
Consequently, choice is the right response (D) The symmetry plane of cis-1,2-dimethylcyclohexane exists. Additional Information: It should be emphasized that an achiral molecule is one that possesses a plane of symmetry. It is possible to superimpose an achiral molecule on its mirror counterpart.
Why is achiral cis-1 2-dimethylcyclohexane?
Instead of having a plane of symmetry, cis-1,2-dimethylcyclohexane is achiral because it has two enantiomeric conformations that quickly interconvert via ring flipping at room temperature.
There is an enantiomer of cis-1 2-dimethylcyclohexane, right?
Two different chair conformers of cis-1,2-dimethylcyclohexane are possible. Two conformational enantiomers are present here. Rapid interconversion prevents them from being resolved.
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Related Questions
Ribosomes are cell structures that make
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Ribosomes are cell structures that make protein. They are the primary site of the synthesis of protein. They are made up of protein and RNA.
What are ribosomes?Ribosomes are cell organelles scattered in the cytoplasm of the cell. They are tiny and round vesicles. They are present in both prokaryotic and eukaryotic cells. Furthermore, they are present freely in the cytoplasm. Ribosomes are also present near the endoplasmic reticulum.
Ribosomes are made up of RNA and protein, and they synthesize the protein in the cell. Ribosomes read the mRNA and by these codes of mRNA, it constitutes amino acids, that grow into a long chain of the protein.
Thus, ribosomes are the parts of cells that produce protein. They serve as the central location for protein production. They are composed of RNA and protein.
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Which of the following radiations is attracted to the positive electrode?
a.Alpha and beta particle
b.Alpha particle and neutron
c.Photon
d.Beta particle
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What is formed when polyatomic ions bond with other ions?
Answers
It would be Ionic Compounds.
15. why might doubling the number of moles of hcl decrease the rate of hcl production? select the acid convertase enzyme is converting hcl back into h and cl- select cannot be determined select no more h or cl- exists to be converted select the acid convertase enzyme has become inactive
Answers
When doubling the number of the moles of the HCl decrease the rate of HCl production because the acid convertase enzyme is converting HCl back into H⁺ and Cl⁻.
The reaction is as follows :
H⁺ + Cl⁻ ⇄ HCl
If we double the number of the moles of the HCl , it decreases the rate of the HCl production because of the reason that the acid convertase enzyme is converting the HCl back into the H⁺ and Cl⁻. The purpose of the enzyme is to allow the conversion of the reactant to the product and the product back to the reactant
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The first Tacoma Narrows Bridge in Washington crossed over a strait in Puget Sound. At the time the suspension bridge was built, construction workers noticed that it moved up and down in the wind. Measures to stop the bridge’s movement were ineffective, but the bridge was opened to the public on July 1, 1940. The bridge collapsed on November 7, 1940. Luckily, no people were seriously injured.
Determine which technological design criteria the Tacoma Narrows Bridge did and did not meet.
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Answer:
Explanation:
The Tacoma Narrows Bridge is the historical name given to the twin suspension bridge—originally built in 1940—that spanned the Tacoma Narrows strait. It collapsed just four months later due to aeroelastic flutter. Since then, this topic has become popular, with several case studies discussing the failure phenomenon of suspension cable bridges.
In the state of Washington, the construction of the Tacoma Narrows Bridge was completed and opened to the traffic on July 1st, 1940. It was the very first bridge to incorporate a series of plate girders as roadbed support, and the first bridge of its type (cable suspension). It was also the third largest suspension bridge of its time, with a 2800-foot central span and two side spans of 1100 feet each.
A west-side approach had a continuous steel girder of 450ft, while the east side had a long reinforced concrete frame of 210ft. It had two cable anchorages of 26ft. along roadways, two 5ft. sidewalks and two 8ft. deep stiffening girders. Among several other structural details, the suspension cable anchorages to which the cables were connected were made of 20,000 cubic yards of concrete, 6 lakh pounds of structural steel, and 2.7 lakh pounds of reinforcing steel. Because of its extremely long length, it was considered a ‘narrow bridge’. The overall construction cost was estimated to be a whopping $6 Million in 1940. Considering inflation, this is equivalent to almost $1 Billion, and all of this for something that lasted just four months and seven days. Yet, this remains a great engineering feature for civil engineers to ponder over.
what is the energy source that powers plate movement?
A magma and lava
B Earth's magnetic field
C the sun
D Earth's hot interior
Answers
Answer:
D Earth's hot interior
Explanation:
The internal heat engine of the earth is the energy source that powers plate movement.
The sun drives the surface process and provides energy for the external heat engine
The earth's interior sources it heat from: decays of radioactive isotopesremnant heat from the formation of the earthfrictional heating from the movement of the earthTherefore, the heat is used to melt rocks and set up convection currents that drives plate movements.
what are the two ways in which the physical state of matter can be changed
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The two ways in which the physical state of matter can be changed are melting and freezing.
Melting is the process by which a solid substance transitions to a liquid state. As a result, the energy added to the solid substance causes the molecules to vibrate at a higher rate. As a result, the heat breaks the bonds between the molecules, allowing them to flow freely.Freezing is the process by which a liquid substance transitions to a solid state. As a result, energy is removed from the liquid substance. The molecules in the substance are moving quickly, but when energy is removed, they slow down.Because of the decrease in energy, the molecules can no longer slide past one another and form a rigid structure, resulting in a solid state of matter.For such more questions on physical state
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Will mark BRAINLIEST. Molarity
Please no Bs answers. Only going to be reported.
If water is added to 145 mL of a 0.55 M KOH solution until the volume is 250 mL, what will the molarity of the diluted solution be?
What is the molarity of the solution that results from diluting 35.0 ml of a 9.02M solution to a new volume of 45.0 ml?
Answers
We can use the equation for dilutions that relates concentration and volume:
\(M_1V_1=M_2V_2\)
where M is the molarity, V is the volume, and 1 and 2 refer to the initial and final states of the solution, respectively. Here, we are given the molarity of the initial solution and the volumes of the initial and final (diluted) solutions. To find the final concentration (i.e., the molarity of the diluted solution), we would be solving for M₂:
\(M_2=\frac{M_1V_1}{V_2} = \frac{(0.55 \text{ M})(145 \text{ mL})}{250 \text{ mL}} \\ M_2 = 0.319 \approx 0.32 \text{ M}.\)
The molarity is given to two significant figures as both our M₁ and V₂ are given to two significant figures.
Note: Although our volumes are in mL instead of L, we do not need to convert them to L for the purposes of our calculation since we would be multiplying our V₁ and V₂ by a common factor that would cancel out in division. All that matters is the ratio between the two volumes, which is the same whether the volumes are in mL or in L.
---
We follow the exact same procedure in the second question as we did in the first problem: solve for M₂ given M₁ = 9.02 M, V₁ = 35.0 mL, and V₂ = 45.0 mL:
\(M_2=\frac{M_1V_1}{V_2} = \frac{(9.02 \text{ M})(35.0 \text{ mL})}{45.0 \text{ mL}} \\ M_2 = 7.02 \text{ M}.\)
For biomass, solar, coal, natural gas, oil, and geothermal energy, identify each energy resource as renewable or non-renewable.
Answers
Answer:
There are nine major kinds of natural resources found on the planet Earth, and all these nine major resources come under two categories, that is, renewable and nonrenewable. The renewable resources refer to the resources that get regenerated again and again over a short time duration. These include five major resources, that is, wind, solar, hydro, geothermal, and biomass.
On the other hand, nonrenewable energy resources are the ones that are present in a very limited amount, as it takes a very long time to regenerate again. The general kinds of nonrenewable energy resources are nuclear, coal, oil, and natural gas.
Hence, biomass, solar, and geothermal energy comes under the renewable resources category, and coal, natural gas, and oil come under renewable resources category.
Answer: the verified answer from an expert.
Explanation:
Use the sample data to construct a 90% confidence interval estimate of the percentage of cell phone users who develop cancer of the brain or nervous system. %
Answers
Using this formula, we can calculate the confidence interval once we have the sample data, without the sample data, it is not possible to provide an accurate confidence interval estimate.
To construct a 90% confidence interval estimate of the percentage of cell phone users who develop cancer of the brain or nervous system, we would need the sample data, specifically the number of cell phone users and the number of users who developed cancer. Without the sample data, it is not possible to provide an accurate confidence interval estimate.
However, if we assume that we have the necessary sample data, we can proceed with the calculation. The formula for calculating a confidence interval for a proportion is:
Confidence interval
\(=�^±�×�^(1−�^)�Confidence interval= p^ ±z× np^ (1− p^ ) where:�^p^\)
is the sample proportion (number of users with cancer divided by the total number of cell phone users).
\(�\)
z is the z-score corresponding to the desired confidence level (90% confidence level corresponds to a z-score of approximately 1.645).
\(�\)
n is the sample size (total number of cell phone users).
Using this formula, we can calculate the confidence interval once we have the sample data.
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A hot metal block with a temperature of 90°C is placed on top of a cold metal block with a temperature of 15°C in a thermally
insulated vessel. The blocks are both made of steel and each has a mass of 0.5 kilograms. What will happen to the temperatures of
the blocks after one hour?
OA. There will be no thermal energy transfer between the two blocks and each block will stay their initial temperatures.
OB. A transfer of thermal energy will result in a more uniform temperature between the two blocks.
OC. The cold block will transfer its thermal energy to the hot block increasing its temperature to 90°C.
OD. The hot block will transfer its thermal energy to the cold block decreasing its temperature to 15°C.
Reset
Submit
Answers
Once both temperatures are identical, there is no overall transfer of heat since the quantity of heat transmitted form one component to the next is equal to the amount.
How much is it exactly?There are numerous people or things if you state there is any quantity of people or things. Any quantity of money is readily available to me at any time.You can count the volume of air in the bottle or the volume of fluid in a beaker. In a similar manner, you can determine how much cat hair is visible on an area rug or how much salt a patient has just consumed.
Describe salt?A base's positive ion cation and an anion make up a salt.
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Can someone explain how to find specific gravity pls?
Answers
Explanation:
The density is directly related to the mass of the object (unit: usually in grams but can be measured in kilograms or pounds), so the specific gravity can also be determined by dividing the mass of the object by the mass of the water
Write the following number form 3.97x10-4
Answers
Answer:
35.7
Explanation:
= 3.97*10-4
= 39.7-4
= 35.7
If the ratio of flour to water in a bread recipe is 5:2, how much water would you have to add to 17. 5 cups of flour?.
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For ratio 5:2, 17.5 cups of flour, the is to be add is 7 cups water.
Given, ratio is 5:2
Let, 5x = 17.5
x = 3.5
Then, 2x = 7
Hence, there is 7 cups of water to add.
A ratio is an ordered pair of numbers x and y, written x / y, where y does not equal 0. A proportion is an equation in which two ratios are set equal to each other.
For example, if there is 5 men and 3 women you could write the ratio as: 5 : 3 , for every 5 men there are 3 women.
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Answer question will give brainliest
Answers
Explanation:
Elastic Potensial energy is what causes a ball to bounce or rebound because it is transformed into kinetic energy, which is then used to bring the ball back up.
The amount of force on an area is know as volume, acceleration, pressure, or momentum
Answers
Answer:
Pressure
Explanation:
What is a molecular formula
Answers
there is no universal rule for the entropy of melting, in contrast to trouton's rule. yet a generic figure is 1kb per particle. assuming this figure is exact, what is the molar enthalpy of melting of argon (in kj/mol), whose melting temperature is 83.85k?
Answers
Entropy is a measurable physical characteristic and a scientific notion that is frequently connected to a condition of disorder, unpredictability, or uncertainty.
Molar enthalpy is the amount of energy per mole. Enthalpy is a thermodynamic quantity that corresponds to a system's total heat content according to this definition. It is equivalent to the system's internal energy plus the sum of the pressure and volume products. This value's unit of measurement is KJ/mol.
Entropy is assumed to be 1 kB/particle
kB: Boltzmann Constant = 1.3806*10^(23)/JK
Entropy, S = 1.3806*10^(-23) /JK
We are aware that S = Q/T
provided T = 83.85 k
and that Q = S*T = S*83.85k = 1.157*10(-21) J / particle.
Since 1 mole = 6.022x1023 particles of heat energy,
the formula for an is 1.157*10(-21)*6.022*10^23, which is 6.967*102 J/mole.
Argon's molar enthalpy is Q/n,
where n is the number of moles,
and ΔH equals 0.6967 KJ/mole.
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Fundamentally, pressure is defined as force per unit area. What is the source of the force in a gas sample?
A.)The force is from gravity acting on the particles
B.)The force is composed of the sum of the collisions only between the gas molecules
C.)The force is composed of the sum of the collision only between the gas molecules and the container
D.) The force is composed of the sum is all collision -- between the gas molecules each other and the container
E.)The force was imparted to the container in its initial filling a transfer of momentum
Answers
The force in a gas sample is composed of the sum of all collisions between the gas molecules, each other, and the container.
This is because the pressure of a gas is determined by the sum of all the collisions between the molecules, each other, and the walls of the container. These collisions impart momentum and energy to the gas, resulting in pressure.
What is Force?
Force is a push or pull exerted on an object that causes it to accelerate, move, stop, or change its shape. Force is measured using the unit of measurement called the newton (N).
What is Pressure?
Pressure is the amount of force per unit area. It is measured in the unit of measurement called the Pascal (Pa). Pressure is a measure of the amount of force that is applied over a given area. It is the result of the sum of all the collisions between the molecules, each other, and the walls of the container.
The force on a gas is the sum of all collisions of the molecules, each other, and the walls of the container. This force causes the pressure of the gas to increase or decrease, depending on the number of collisions and the magnitude of the force. The pressure of the gas is determined by the sum of all these collisions, and the force is what causes the gas to move and change shape.
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what happens when carbon dioxide is passed through lime water for a long time? write with equation
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Answer:
when CO2 gas is passed through lime water it turns milky due to the formation of calcium carbonate which formula is CaCO3.
Ca(OH)2+ CO2------ CaCO3
when excess of carbon dioxide is passed through calcium carbonate calcium hydrogen carbonate is formed and solution become colourless.
CaCO3+CO2------ Ca(HCO3)
a simple random sample of 50 ten-gram portions of the food item is obtained and results in a sample mean of x=5.9 insect fragments per ten-gram portion. complete parts (a) through (c) below.
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A confidence interval can estimate the true mean of insect fragments per portion, while the margin of error measures precision, and sample size determines the required accuracy.
(a) Confidence Interval: To estimate the true mean number of insect fragments per ten-gram portion, a confidence interval can be calculated. Assuming a normal distribution, we can use the sample mean (x = 5.9) to determine the range within which the true population mean lies. With a simple random sample of 50 portions, we can use the t-distribution for small sample sizes.
Choosing a desired confidence level, such as 95%, we calculate the standard error using the sample standard deviation and find the t-value for the corresponding degrees of freedom. With these values, we can construct the confidence interval as x ± t * (s/√n). The resulting interval provides a range in which we can be confident the true population mean lies.
(b) Margin of Error: The margin of error measures the maximum expected difference between the sample mean (x = 5.9) and the true population mean. It is calculated by multiplying the standard error by the critical value corresponding to the chosen confidence level.
This provides an estimate of the precision of our sample mean as an approximation of the true population mean. A smaller margin of error indicates a more accurate estimation of the population mean.
(c) Sample Size Determination: The sample size required to estimate the population mean with a desired level of precision can be determined using the formula\(n = (Z * \alpha / E)^2\).
Here, Z is the critical value corresponding to the desired confidence level, σ represents the estimated standard deviation, and E is the desired margin of error.
By plugging in the respective values, we can solve for the required sample size. A larger sample size will result in a smaller margin of error, increasing the precision of the estimate.
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The ocean is made mostly of:
A) Carbon and oxygen
B) Hydrogen and carbon
C) Calcium and nitrogen
D) Hydrogen and oxygen
Answers
Answer: The ocean is made mostly of: D) Hydrogen and oxygen.
Explanation: The most abundant elements in the ocean by proportion of mass in percent are oxygen (85.84%), hydrogen (10.82%), chlorine (1.94%), sodium (1.08%), magnesium (0.13%), sulfur (0.09%), calcium (0.04%), potassium (0.04%), bromine (0.007%), carbon (0.003%), and boron (0.0004%).
Hope this helped!
All objects made of matter create what pull?
Answers
Answer:
energy
that seems like the most relevant answer
which of the following is an organic compound h2o2 c2h4 naoh h2so4
Answers
Out of the given choices, C2H4 is an organic compound because it is a hydrocarbon. An organic compound is a chemical compound that contains carbon atoms bonded to other atoms, usually hydrogen, oxygen, and nitrogen, but also sulfur, phosphorus, and other elements.
Organic compounds are the basis of all living organisms and include important molecules such as proteins, nucleic acids, carbohydrates, and lipids. In contrast, H2O2, NaOH, and H2SO4 are inorganic compounds since they do not contain carbon-hydrogen bonds. H2O2 is a peroxide, NaOH is a base, and H2SO4 is an acid. These are important inorganic compounds used in various industries, but they are not organic.
H2O2 is a clear, colorless, and odorless liquid that is commonly used as a disinfectant and bleaching agent. It is an inorganic compound that does not contain carbon-hydrogen bonds, so it is not an organic compound. On the other hand, C2H4 is an organic compound because it is a hydrocarbon with two carbon atoms and four hydrogen atoms. This compound is also known as ethylene and is used in the production of plastics, rubber, and other chemicals.
In conclusion, the organic compound out of the given options is C2H4 (ethylene), while the rest are inorganic compounds.
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Need some facts on the universe
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Answer:"SPACE IS COMPLETELY SILENT. ... THE HOTTEST PLANET IN OUR SOLAR SYSTEM IS 450° C. ... A FULL NASA SPACE SUIT COSTS $12,000,000. ... THE SUN'S MASS TAKES UP 99.86% OF THE SOLAR SYSTEM. ... ONE MILLION EARTHS CAN FIT INSIDE THE SUN. ... THERE ARE MORE TREES ON EARTH THAN STARS IN THE MILKY WAY."
Explanation:
Helppppppppp DON’T GUESSS
Answers
Answer:
A. For every mole of carbon dioxide consumed, one mole of water is consumed
Explanation:
The photosynthetic equation is given as follows:
6CO2 + 6H2O → C6H12O6 + 6O2
The coefficient in front of each reactant and product is used to represent the number of moles needed for each compound/element in the reaction.
Based on this, this means that 6 moles of CO2 (carbon dioxide) needs to react with 6 moles of H2O (water) to form the products.
In a simpler form, this also means that for every 1 mole of carbon dioxide (CO2) consumed, one (1) mole of water (H2O) is consumed.
The substance that speed up the digestion stop working when they have been boiled, what does asim need to put in a fourth test tube to test this in his experiment?
Answers
He needs to put some pancreatic blood in a test tube to test for the functioning of digestion enzymes produced by the pancreas.
The objective of this experiment is to identify the substrates and substances.
An enzyme is a substance that acts as a catalyst to speed up a biochemical process. They also help in to speed up the digestion process.
The main the purpose of this experiment is to check why these enzymes aren't working properly. A pancreatic blood test needs to be done in a test tube to find out the reasons.
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the prefixes gluc/o and glyc/o both refer to _____ or sugar.
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The prefixes gluc/o and glyc/o both refer to sugar.
The explanation for this is that both prefixes are derived from the Greek word "glykys," which means sweet. Gluc/o is typically used to refer to glucose, which is a simple sugar that is the primary source of energy for the body.
Glyc/o is a more general term that can refer to any type of sugar, including complex carbohydrates like starches.
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The prefixes gluc/o and glyc/o both refer to glucose or sugar.
Both prefixes are derived from the Greek word "glykys," which means sweet. Gluc/o is commonly used in scientific terminology, while glyc/o is often used in medical terminology.
In medical terminology, the prefixes gluc/o and glyc/o are used interchangeably to denote glucose, which is a simple sugar and an essential source of energy for living organisms. These prefixes are commonly used in words related to glucose metabolism and its related conditions, such as glycemia (blood sugar level) or glucagon (a hormone that raises blood sugar).
In summary, gluc/o and glyc/o are prefixes that represent glucose or sugar in medical terms, and they are used to describe various aspects of glucose metabolism and related conditions.
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Read the description of the centrioles. What is their function?
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Answer:
Typically found in eukaryotic cells, centrioles are cylindrical (tube-like) structures/organelles composed of microtubules. In the cell, centrioles aid in cell division by facilitating the separation of chromosomes. For this reason, they are located near the nucleus.
The fewer double bonds within a ____________ tail, the higher the melting temperature, meaning these molecules are often solids at room temperature.
Answers
The fewer double bonds within a fatty acid tail, the higher the melting temperature, meaning these molecules are often solids at room temperature.
The chemical composition of fatty acids affects their physical properties. Fatty acid tails with fewer double bonds have a straighter shape and can pack tightly together. This results in stronger van der Waals forces between adjacent molecules, making them harder to separate from one another.
As a result, these molecules have a higher melting temperature and are often solids at room temperature. On the other hand, fatty acid tails with more double bonds have a bent shape and cannot pack as tightly together.
This results in weaker van der Waals forces between adjacent molecules, making them easier to separate from one another. As a result, these molecules have a lower melting temperature and are often liquids at room temperature.
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