a prochirality center is a precursor to a chirality center. identify the pro chirality centers (if any) in each structure.
Answers
A tetrahedral carbon is referred to as "prochiral" when only one of its connected groups needs to be changed in order to transform it into a chiral centre.
An R chirality centre forms at the original sp3-hybridized atom when the pro-R substituent is elevated above the other identical substituent in precedence. Butanone contains two prochirality centres at carbon atoms 2 and 3. As an illustration, 17 of the 20 amino acids have one chiral centre. An enantiomeric pair is one of the two options for each of them. 13 Chemicals with Asymmetric Centers here are four more asymmetrically centred molecules.
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a prochirality center is a precursor to a chirality center. identify the pro chirality centers (if any) in each structure.
Related Questions
write the difference and similarities between beja badghar and guthi
Answers
Answer:
Similarities:
All three systems are organizations that are used to maintain socio-economic order in their different communities.All three systems each have heads of their communities.Differences:
The Guthi system was formed by the Nepalese community.The Bheja system was formed by the Magar community.
The Badghar system was formed by the Tharu community.
The head of the community of the Guthi system is called GuthigarThe head of the community of the Bheja system is called the Mukhiya
The head of the community of the Badghar system is called Badgar
Guthi is a social organization.Bheja deals with social target and achievements.
Badghar deals with customs and traditional rituals.
Answer:
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Find the angle between the body diagonals of a cube
Answers
Answer:
cos-1(√2/√3)
Explanation:
Let us consider a cube with side length = a. Therefore, the angle between the diagonals is cos-1(√2/√3)
what role did the original religions play in Africa once Christ and Islam was introduced
Answers
Answer:
They believed the Judas would protect them
Complete the table to determine the effect of the number of compounding periods when computing interest. Suppose that $8000 is invested at 3.8%
interest for 12 yr under the following compounding options. Round answers in the second column to the nearest whole number. Round answers in the
last column to the nearest cent.
Compounding Option
n Value
Result
x
(a) Annually
72 =
S
(b) Quarterly
$
(c) Monthly
12 =
S
(d) Daily
n = 365
(e) Continuously
Not Applicable
SI
Answers
Answer:
\(\left|\begin{array}{c|c|c|c}&$Compounding Option&$n Value&$Result(\$)\\----&----&----&----\\(a)&$Annually&1&\$12515.79\\(b)&$Quarterly&4&\$12585.91\\(c)&$Monthly&12&\$12616.91\\(d)&$Daily&365&\$12621.70\\(e)&$Continuosly&$Not Applicable &\$12622.00\end{array}\right|\)
Explanation:
The compound interest formula is:
\(A=P(1+\frac{r}{n})^{nt}\) where:
A = accumulated amount = ? P = Principal amount = $8000 r= Rate of interest = 3.8% = 0.038t = number of years = 12 years n= Compounding PeriodWe are required to complete the table below:
\(\left|\begin{array}{c|c|c|c}&$Compounding Option&$n Value&$Result(\$)\\(a)&$Annually&\\(b)&$Quarterly&\\(c)&$Monthly&\\(d)&$Daily&365\\(e)&$Continuosly&$Not Applicable &\end{array}\right|\)
(a)Annually
\(n=1\\A=8000(1+\frac{0.038}{1})^{1*12}\\=\$12515.79\)
(b)Quarterly
\(n=3\\A=8000(1+\frac{0.038}{3})^{3*12}\\=\$12585.91\)
(c)Monthly
\(n=12\\A=8000(1+\frac{0.038}{12})^{12*12}\\=\$12616.91\)
(d)Daily
\(n=365\\A=8000(1+\frac{0.038}{365})^{365*12}\\=\$12621.70\)
(e)Continuously
\(P(t)=P_0e^{rt}\\=8000 \times e^{0.038 \times 12}\\=\$12622.00\)
The completed table therefore is:
\(\left|\begin{array}{c|c|c|c}&$Compounding Option&$n Value&$Result(\$)\\----&----&----&----\\(a)&$Annually&1&\$12515.79\\(b)&$Quarterly&4&\$12585.91\\(c)&$Monthly&12&\$12616.91\\(d)&$Daily&365&\$12621.70\\(e)&$Continuosly&$Not Applicable &\$12622.00\end{array}\right|\)
Why does Poe offer disjointed historical references, leading us to believe the prisoner is being tortured during the Spanish Inquisition (started in the 1470s), when the reference to the Jacobin Club and General Lasalle's rescue would have been during the Napoleonic wars, no earlier than the 1790s?
Answers
Edgar Allan Poe offers disjointed historical references in "The Pit and the Pendulum" to create an atmosphere of disorientation and confusion for the reader, mirroring the prisoner's own feelings of disorientation and uncertainty.
Why does Poe offer disjointed historical references, leading us to believe the prisoner is being tortured during the Spanish InquisitionThe historical references are deliberately jumbled and anachronistic, suggesting that the prisoner's perception of time is distorted and that he is experiencing a kind of psychological torture. Poe's use of historical references adds to the sense of horror and suspense in the story.
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What does the underlined word mean in the following sentence?
Es más importante doblar la ropa que hablar por teléfono.
talk on the phone
wash the laundry
hang the laundry to dry
fold the laundry
Answers
Why was it necessary for the Second Continental Congress to outline the structure of government? O It needed to explain how the government would work once independence from Britain was declared. It needed to have the power to create an army and house it during the War of Independence. It needed to have the power to raise taxes to pay for the effects of the War of Independence. It needed to explain what rights citizens would have in the new country.
Answers
Answer:
It needed to explain how the government would work once independence from Britain was declared.
Explanation:
I think this is the answer, but I'm not sure.
I hope this is correct.
Population of Nepal is increasing but the quality of life is decreasing
Answers
Ok.
Step-by-step explanation:
Do you have a question?
Many early descriptions and modern popular depictions portray Neandertals as particularly primitive in comparison to anatomically modern humans. Summarize the various aspects of Neandertal behavior and culture that strongly counter the assumption that they were simplistic, cognitively deficient evolutionary failure.
Answers
Answer and Explanation:
The Neanderthals seem to be homo sapiens' direct ancestors. They were frequently described by early historians as barbaric cavemen who hunted and lacked some thinking abilities. Thanks to their sudden disappearance, they were dubbed evolutionary disasters after the arrival of modern humanity at both the event.
That being said, they are considered by modern specialists as something very advanced as well as smart organisms. Many also argue that because of the parallels identified among Homo sapiens as well as the Neanderthals individuals should be deemed a different species.They decided to make intricate tools and weapons that necessitate skills and knowledge. Individuals were using the methodology of woodworking which involves comprehension and therefore can not be carried out without the need for any learning instrument. They would have been the first to render bone available. They are often considered to be the ones to mourn deceased, as well as to worship with flowers and plants the graveyard grounds. This could be they have done rituals.So that the above is the right answer.
What was the history of Mexico after independence?
Answers
Answer:
After gaining independence from Spain in 1821, Mexico experienced a period of political instability and civil war. This period lasted until 1867, when the current Mexican Constitution was adopted. During this time, Mexico was ruled by a series of military dictators and caudillos, or strongmen.
In 1876, Porfirio Diaz became president and ushered in a period of stability and economic growth. This period, known as the Porfiriato, lasted until 1910, when the Mexican Revolution began. The Revolution lasted until 1920 and resulted in the overthrow of Diaz and the establishment of a new government. Since then, Mexico has experienced a period of democratic rule, with the current president, Andres Manuel Lopez Obrador, being elected in 2018.
Explanation:
After gaining independence from Spain in 1821, Mexico experienced a period of political instability and civil war. This period was marked by a series of military coups, dictatorships, and civil wars. During this time,
Mexico also experienced a period of economic stagnation and poverty. In the late 19th century, Mexico underwent a period of modernization and economic growth, led by the Porfirio Díaz regime. This period was characterized by increased foreign investment, industrialization, and the growth of the Mexican economy.
However, this period was also marked by increased inequality and the suppression of civil liberties. In 1910, the Mexican Revolution began, which overthrew the Díaz regime and ushered in a period of political and social reform. This period saw the establishment of the Mexican Constitution of 1917, which established a democratic government and enshrined civil liberties.
In the mid-20th century, Mexico experienced a period of economic growth and modernization, which saw the country become a major player in the global economy. Today, Mexico is a vibrant democracy with a growing economy and a strong commitment to civil liberties.
What was your ambitions when you were a child?
Answers
Answer:
to be the most smart kid on earth
Explanation:
what's yours
Answer:
When I was a child, I had many different ambitions. I wanted to be a doctor, a teacher, a writer, a scientist, and a musician. I was curious about the world and eager to learn new things. I enjoyed reading books, playing games, and making experiments. I also loved to express myself through writing stories, poems, and songs. I dreamed of helping people, discovering new knowledge, and creating something meaningful. I think my childhood ambitions reflected my personality and interests, as well as my hopes and aspirations for the future.
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By 7 years of age, children start responding to the stimulus word "dog" with other words like "cat" or "sheep," or responding to the stimulus word "talk" with "run" or "jump." This is evidence that children at this age have begun to _____.
Answers
Answer:
Catagorize their vocabulary by parts of speech.
Explanation:
Jackie's cousin visited every weekend during the year. Which test does this fit for?
Member of Household
Neither
Relationship
Both
Answers
Answer:
One of the criteria for claiming a dependent on your tax return is that the person must be a member of your household or a relative. To be a member of your household, the person must live with you for the entire year as a member of your family. To be a relative, the person must meet certain tests of blood or legal relationship. Jackie's cousin visited every weekend during the year. Which test does this fit for? Member of Household, Neither, Relationship, or Both?
The correct answer is Neither. Jackie's cousin does not meet the member of household test because he did not live with Jackie for the entire year. He also does not meet the relationship test because cousins are not considered relatives for tax purposes unless they live with you for the entire year as a member of your family.
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what do you mean by cultural heritage ? write any four example of them
Answers
Explain how the strengths and shortcomings of a region impact trade and the need to interact with other cultures.
Answers
Trade can have an impact on the environment that is both favorable and unfavorable.
Economic growth brought on by increased trade can directly harm the environment by causing pollution to rise or the deterioration of natural resources. Additionally, the so-called "pollution haven theory" suggests that economic liberalization may foster specialization in pollution-intensive businesses in those nations where environmental policy rigor varies.
Increased trade can, however, lead to a better ability to manage the environment through promoting economic development, social welfare, and growth. More crucially, free markets can increase access to new technologies that increase the effectiveness of local production processes by reducing the need for inputs like energy, water, and other detrimental environmental factors.
Similar to this, businesses may be encouraged to adopt stricter environmental standards via the liberalization of trade and investment.
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What specific problem in the school by which you can help at solving it through research? Essay
Answers
Which of these words is spelled correctly?
source
soarce
entittled
intitled
Answers
Answer:
Source will be the one that is spelled correctly.
Explanation:
The other answers aren't humorous.
Answer:
source is spelled correctly.
Explanation:
its right
List five Items that were sold at the medleval falr.
Answers
Answer:
A lot of times at medieval fairs or market places food, cleaning products, wood work, whetstones, clothing and other household appliances were sold made by the locals or by merchants. Merchants also traded in luxury products, such as silk, leather, perfumes, jewels and glass.
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according to the online content activity for this lesson what should you do if you do not understand the material you’re trying to learn
Answers
why does the centeral intelligence agency have more freedom of action that that of othr federal agencies
Answers
The Central Intelligence Agency (CIA) has greater freedom of action compared to other federal agencies due to its role in intelligence gathering and covert operations, allowing it to operate with higher levels of secrecy and independence.
What makes the Central Intelligence Agency have more Freedom of Action?Central Intelligence Agency (CIA) possesses a higher degree of operational liberty relative to other federal agencies as a result of its involvement in intelligence collection and covert missions, operating with enhanced secrecy and fewer constraints.
This affords the CIA increased independence and flexibility in conducting its intelligence operations.
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What did early humans need least in warm environments?
Answers
Answer:
The way they lived depended on where they lived. Those in warm climates needed little clothing and shelter. Those in colder climates took protection from the weather in caves or animal hides over wooden poles.
Explanation:
three ways on how to get involved in human rights campaign
Answers
Answer:
There are several ways to get involved in human rights campaigns, including:
Volunteer for a human rights organization: You can volunteer your time and skills to a human rights organization. You can research and find organizations that align with your values and interests and offer your help in various ways such as fundraising, outreach, or administrative tasks.Advocate for human rights: You could also advocate for human rights. This can include writing to your elected officials, attending rallies or protests, or using social media to raise awareness about human rights abuses and injustices.Educate yourself and others: Educating yourself and others about the issues at hand is also a possible way to promote human rights. You can read books, articles, and reports about human rights violations and abuses, attend workshops and seminars, and engage in discussions with friends and family to increase awareness and understanding of human rights issues.Explanation:
14. What characteristics, Qualities, or competencies do not make a successful Human Resource
Professional
A. Interpersonal competencies.
B. Business competencies.
C. Leadership competencies.
Answers
Answer:
interpersonal compleqtencie
plzz Help me someone
"A man is a powerful tool for a geographer and a scale is the heart of the map". justify the statement
Answers
Answer:
for a geographer and a scale is the heart of the map". justify the statement.
Is the following statement true or false?
The 15th Amendment redefines the idea of the word citizen in the United States.
Select one:
True
False
Answers
Answer:
False!
Explanation:
Comprehensive framework of ideas and
beliefs through which an individual interprets
the world and interacts with it.
Answers
Answer:
the answer is worldview
Select all characteristics a multicellular organism has that a colonial unicellular organism does not have.
A Each cell must carry out all life processes to survive.
B Each cell is identical.
C Cells have specialized to form tissues and organs.
D Cells depend on one another.
Answers
Answer:
Hello! Your answer should be....
B. Each cell is identical.
Explanation:
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What is burnout in social work?
Answers
Answer:
involves feeling drained after considerable and consistent stress.
Explanation:
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What group of Roman’s mostly moved to Constantinople
Answers
Answer:
If you didn't know this the Western half and the eastern half now referred to as the Byzantine Empire. surprisingly the western capital remained in Rome while the east got its new capital in the sprawling city of then called Byzantium but later got changed to Constantinople, after Constantine himself.
Explanation:
the Western half and the eastern half now referred to as the Byzantine Empire
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What was the job of the Committee of Correspondence?
to contact each colony's legislature and pressure them to pay British taxes
to tar and feather all British tax collectors
to communicate with the British Parliament
to contact each colony's legislatures so they could join together in their opposition to the British
Answers
The job of the Committee of Correspondence is to contact each colony's legislatures so they could join together in their opposition to the British.
What is the role of Committee of Correspondence?Prior to the Revolutionary War, these committees were the collection of American political organizations that sought to coordinate an opposition to the British Parliament and support for American independence.
They sought to establish the idea through the writing of letters and an an underground network of communication among Patriot leaders in the Thirteen Colonies. In conclusion, the Maryland Committee was very instrumental in setting up the First Continental Congress which met in Philadelphia.
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