Predict the number of signals expected in the proton spin decoupled 13c spectrum of p-dibromobenzene (1,4-dibromobenzene).
Answers
2 number of signals is expected in the proton spin decoupled 13C spectrum of p-dibromobenzene (1,4-dibromobenzene).
It is well known that the proton spin decoupled 13C spectrum of p-dibromobenzene (1,4-dibromobenzene) should show two signals. However, it has been recently reported that only one signal is observed in this spectrum.
There are two possible explanations for this discrepancy. Firstly, it is possible that the p-dibromobenzene molecule is not actually proton spin decoupled. In this case, the spectrum would only show one signal because the proton and carbon spins would be coupled together.
Alternatively, it is possible that the molecule is proton spin decoupled, but that the 13C signal is very weak and is only detectable when the molecule is in a very high energy state. This would explain why only one signal is observed in the spectrum.
Further experiments are required to determine which of these explanations is correct. In the meantime, it is important to be aware that the proton spin decoupled 13C spectrum of p-dibromobenzene may not show the expected two signals.
Learn more on 13C spectrum here:
https://brainly.com/question/14470726
#SPJ4
Related Questions
as a woman holding her breath swims deeper and deeper beneath the water's surface, her density
Answers
As a woman holds her breath and swims deeper into the water, her density increases. The deeper she goes, the more the pressure increases and the denser she becomes.
This is because the air in her lungs is compressed due to the pressure of the water, making her overall body more compact and dense. This increase in density can have an impact on her ability to swim and move through the water. It may require more effort to move her body and limbs due to the increased resistance from the water. Additionally, holding her breath for too long can lead to oxygen deprivation and potentially result in blacking out or drowning. Therefore, it is important to practice safe and controlled breathing techniques when swimming at deeper depths.
To learn more about breathing click here https://brainly.com/question/26181478
#SPJ11
If long-term higher global temperatures continue to rise on Earth which aspect of the water cycle will most likely occur more rapidly?
Answers
Answer:
evaporation
Explanation:
because the more heat that hits the water the more it evaporates
If long term higher global temperature continue to rise on Earth which aspect of the water cycle will most likely occur more rapidly
The correct answer is :
It affects the evaporation and precipitation.
What is water cycle?
It is the cycle process by which water circulates between the earth's oceans, atmosphere, and land. It involves precipitation as rain and snow, drainage in streams and rivers.This precipitate water returns to atmospheric by evaporation.What affects the parts of water cycle?
Change in climate affects the parts of the water cycle to speed up if the temperature increases.Than it leads to increase in the rate of evaporation. Increase in evaporation cause more precipitation.So, evaporation is the correct answer.
learn more about water cycle below
https://brainly.in/question/239354
#SPJ2
If you planted 100
seeds from this test cross,
about how many would
be white? How many would
be red?
Answers
cd4 t cells are activated by group of answer choices interaction between tcrs and mhc ii interaction between cd4 and mhc ii. complement cytokines released by dendritic cells.
Answers
cd4+ t cells are activated by interaction between CD4+ and MHC II.
What is MHC molecule?
A sizable region of vertebrate DNA called the major histocompatibility complex houses a group of closely related polymorphic genes that code for the cell surface proteins needed by the adaptive immune system. These MHC molecules are cell surface proteins.
A controlled, efficient immune response to pathogens depends on CD4+T cells. After interacting with the antigen-MHC complex, naive CD4+T cells become activated and undergo specialized subtype differentiation that is largely influenced by the cytokine milieu of the microenvironment.
Hence the correct answer is interaction between CD4+ and MHC II.
To learn more about MHC molecule from the given link
https://brainly.com/question/13051585
#SPJ4
how far is the moon from earth?
Answers
238,900 mi
On an average, the Moon is approximately 238,900 miles (384,400 kilometers) away from the Earth.
What is the Moon?The Moon is a natural satellite of the Earth, meaning it is a celestial body that orbits around the Earth. It is the fifth-largest moon in the solar system and the largest relative to the size of its host planet.
The Moon is approximately one-quarter the size of the Earth and has no atmosphere, no liquid water, and no magnetic field. It is primarily made up of rock, dust, and ice and has a surface covered in craters, mountains, and flat plains called "maria." The Moon has been the subject of scientific study and exploration for decades, and it continues to be a source of fascination and wonder for people all over the world.
Learn more about moon, here:
https://brainly.com/question/30712526
#SPJ7
What is the mating of two individuals that are related to each other?
Answers
The mating of two individuals that are related to each other is known as inbreeding.
Inbreeding refers to the mating or reproduction between individuals that share a close genetic relationship, such as siblings, parent-offspring, or cousins. It is a form of breeding that occurs within a limited gene pool. Inbreeding can result in the offspring inheriting similar genetic traits from both parents, including both desirable and undesirable characteristics.
The primary reason for inbreeding is to preserve or concentrate specific traits or genetic lines within a population. In some cases, breeders intentionally practice inbreeding to fix desired traits or to create a breed with consistent characteristics. However, inbreeding can also lead to an increased risk of inheriting genetic disorders or abnormalities. This is because mating between closely related individuals increases the likelihood of inherited recessive traits or genetic defects being expressed in the offspring.
Inbreeding can have both positive and negative effects, depending on the specific goals and circumstances. It is commonly used in selective breeding programs but requires careful management to prevent the accumulation of detrimental genetic traits.
Learn more about genetic here
https://brainly.com/question/30608640
#SPJ11
At which location would an object's weight be the greatest
On Pluto
On Earth
On the Sun
On the Moon
Answers
Answer:
on the moon
Explanation:
because the moon is the biggest
numerous small sacs of fibrous connective tissue and fluid in the breast is called
Answers
Numerous small sacs of fibrous connective tissue and fluid in the breast are called fibrocystic breast changes.
Fibrocystic breast changes are a common condition that affects many women, particularly those of childbearing age. This condition can cause breast pain, swelling, tenderness, and the development of lumps or cysts in the breast tissue.
While fibrocystic breast changes are not typically a cause for concern, it is important for women to regularly perform self-examinations and report any changes to their healthcare provider. Women with fibrocystic breast changes may also be advised to avoid caffeine and to wear a supportive bra to help manage symptoms.
Learn more about Fibrocystic breast changes:
https://brainly.com/question/28098150
#SPJ11
q3.25. how much of the observed nitrogen fluxes does the corn/forest ecosystem retain, in kg ha-1 y-1?
Answers
The amount of observed nitrogen fluxes retained by the corn/forest ecosystem is determined by specific measurements and data analysis, and the value in kg ha-1 y-1 will vary based on these findings.
To provide an accurate answer, the specific value of the nitrogen flux retention would need to be provided. The question pertains to the amount of nitrogen fluxes retained by the corn/forest ecosystem, measured in kilograms per hectare per year (kg ha-1 y-1). Nitrogen fluxes refer to the movement of nitrogen compounds, such as nitrogen gas, ammonia, or nitrate, within the ecosystem.
The retention of nitrogen fluxes in an ecosystem depends on various factors, including the efficiency of nitrogen uptake and utilization by plants, the microbial processes involved in nitrogen cycling, and the potential losses through leaching or volatilization. These processes can be influenced by management practices, soil characteristics, climate conditions, and the specific interactions between the corn and forest components of the ecosystem.
To determine the specific value of nitrogen flux retention in the corn/forest ecosystem, it would require conducting research or referring to relevant studies that have measured and quantified nitrogen fluxes within this specific ecosystem. Such studies typically involve monitoring nitrogen inputs and outputs, including atmospheric deposition, nitrogen fixation, leaching, and denitrification, to estimate the overall retention within the system.
Learn more about Data analysis,
brainly.com/question/31086448
#SPJ11
T/F. In the neuron, neurotransmitters are stored in the myelin sheaths.
Answers
The given statement," In the neuron, neurotransmitters are stored in the myelin sheaths," is false because they are stored at the synaptic vesicles.
Neurotransmitters are the chemical messengers that function to relay the electrical signals between two neurons in the chemical form. They are required because electrical signals cannot be generated outside the nerve cells. The examples of neurotransmitters are: GABA, glutamate, histamine, norepinephrine, etc.
Synaptic vesicles are the small sac-like structures present at the nerve endings. These vesicles store the neurotransmitters until signals are received to release them. The receiving of signals is voltage dependent and depends on the opening and closing of calcium ions.
To know more about neurotransmitters, here
brainly.com/question/9725469
#SPJ4
Help plzz^^^
1. predatory advantage
2. camouflage advantage
3. competitive advantage
4. reproductive advantage
no links
Answers
which of the following definitions is wrong? 1 point activation energy is the minimum energy required for a specific reaction to proceed coenzymes are protein components which assist some enzymes in catalysis the active site is the area of an enzyme where substrate binding and catalysis occur enzymology is the study of enzyme structure, function and catalytic mechanism quantum tunnelling is a phenomenon by which small reactants become product without possessing the classical activation energy
Answers
The wrong definition is; Coenzymes are protein components which assist some enzymes in catalysis. Option A is correct.
The statement is incorrect because coenzymes are non-protein organic molecules that often work with enzymes to facilitate catalysis. They are not protein components, but they can bind to enzymes and participate in the catalytic reaction. Coenzymes often function as carriers of specific functional groups, electrons, or chemical moieties, which are transferred from one reaction to another in the enzymatic reaction. Examples of coenzymes include NAD⁺, FAD, and coenzyme A.
Enzymes are proteins that act as catalysts to increase the rate of chemical reactions in the cell. Enzymes work by binding to specific molecules called substrates at their active site, which is the region of the enzyme where the catalytic reaction occurs. Enzymes lower the activation energy required for a reaction to occur, which allows the reaction to proceed more quickly and efficiently.
Hence, A.is the correct option.
To know more about coenzymes here
https://brainly.com/question/29848845
#SPJ4
--The given question is incomplete, the complete question is
"Which of the following definitions is wrong? The active site is the area of an enzyme where substrate binding and catalysis occur a) Coenzymes are protein components which assist some enzymes in catalysis b) Enzymology is the study of enzyme structure, function and catalytic mechanism c) Activation energy is the minimum energy required for a specific reaction to proceed d) Quantum tunnelling is a phenomenon by which small reactants become product without possessing the classical activation energy"--
Explain why the use of peat is harmful to the environment
Answers
Answer:
Peatlands store a third of the world's soil carbon, and their harvesting and use releases carbon dioxide, the major greenhouse gas driving climate change. The biggest environmental risk from peatlands is if they catch fire, which happened spectacularly in 2015 in Indonesia on land cleared for plantations.
What is the role of linchen and moss in succession?
Answers
Answer:
They provide organic matter to the soil when they die.
hel pls i really need it im in a assignment pls PLS PLS PLS AND THANK YOU
Answers
Answer:
Trait - A
Gene - E
Allele - B
Chromosome - C
Hope this helps!
Chromosome- C
Allele- B
Gene- E
Double helix- F
DNA- D
How I got these? Sources of course because I’m always right
Researchers studied the relationship between glucose concentration oxygen mobile and ATP production in one type of mammalian cell. Cells were isolated and cultured and growth medium containing either 1.5MM glucose or 25 MM glucose and at oxygen levels that varied from 0% to 21%. The researchers determined the concentration of ATP per cell under the different conditions. The ATP concentrations are shown as relative to maximum ATP concentration obtained when cells were cultured in the presence of 25MM glucose and 21% oxygen standard culture conditions.
Describe the relationship between the concentration Agricole Cindy Coach medion md ATP concentration in cells.
Answers
Answer:
Direct relationship.
Explanation:
There is direct relationship between the concentration of oxygen and ATP concentration in cells because with the increase of oxygen, increase also occur in the concentration of the energy that is produced in the form of ATP. Direct relationship means if one increase the other automatically increase while on the other hand, if one decrease the other also decreases. So if oxygen is increases, ATP production is also increases and vice versa.
A scientist wrote down the steps to perform a chemical experiment, but they are out of order. Help the scientist by rearranging his steps in the correct order
Answers
The purpose of an experiment is to establish cause and effect relationship.
What is an experiment?In science an experiment has to do with the process in which there is the establishment of a cause and effect relationship between the variables in the experiment. Thus the purpose of an experiment is to establish cause and effect relationship.
The correct steps in the experiment are;
Predict what happens when lead nitrate reacts with potassium iodide.
Measure 100 ml distilled water into each of two beakers.
Measure out 0.3 grams each of the solids, lead nitrate and potassium iodide.
Dissolve each solid in a separate beaker of water.
Pour both solutions into one container and slowly stir.
Watch mixture change from clear to a yellow solid and record observations.
Write a science report detailing results and conclusions.
Create a presentation and share findings with peers.
Learn more about experiment:https://brainly.com/question/11256472
#SPJ1
Missing parts:
A scientist wrote down the steps to perform a chemical experiment, but they are out of order. Help the scientist by rearranging his steps in the correct order. Measure out 0.3 grams each of the solids, lead nitrate and potassium iodide. Watch mixture change from clear to a yellow solid and record observations. 1 Measure 100 ml distilled water into each of two beakers. 1 Write a science report detailing results and conclusions. Dissolve each solid in a separate beaker of water. Pour both solutions into one container and slowly stir. Create a presentation and share findings with peers. Predict what happens when lead nitrate reacts with potassium iodide.
In the liver, bilirubin is conjugated to:____.
a. vinyl groups.
b. methyl groups.
c. hydroxyl groups.
d. glucuronide.
Answers
In the liver, bilirubin is conjugated to glucuronide.
A class of enzymes called uridine-diphosphoglucuronic glucuronosyltransferase converts bilirubin to glucuronic acid inside the hepatocyte (UDPGT).
One of the many important detoxification processes used by the human body is glucuronidation. There are several distinct UDPGT isoforms, but UDPGT1A1 is the one that is physiologically significant for bilirubin glucuronidation.
The bilirubin's propionic acid side chains are modified by the enzyme by adding two glucuronide moieties. Bilirubin diglucuronide is the most common compound created under typical circumstances.
However, the majority of bilirubin may be converted as bilirubin glucuronide if the conjugation machinery is overloaded under circumstances where there is an excessive amount of bilirubin production.
Hydrogen bonds must be broken in order for bilirubin to be converted to its water-soluble form, which is necessary for liver and kidney excretion.
To learn more about bilirubin refer to:
https://brainly.com/question/14734896
#SPJ4
Describe how scientist choose the kingdom in which a eukaryote belongs.
Answers
Answer:Scientists choose the kingdom in which a eukaryote belongs by asking questions, such as, Is this organism unicellular or multicellular, autotrophic or heterotrophic and how does the organism reproduce. They may also check the cellular structures to see whether the nucleus and organelles are membrane bound.
Describe one way in which water from the ocean may make one complete cycle through the atmosphere and back to the ocean include the names in the cycle
Answers
Answer:
ocean water evaporates and becomes water vapor, then when the droplets grow larger they fall as precipitation
Explanation:
hope this helps mark me please
When ocean water evaporates and turns into water vapor, bigger droplets that have formed fall as precipitation and the cycle is named as water cycle.
What is water cycle?A cycle of events known as the "water cycle" includes precipitation in the form of rain and snow, drainage into streams and rivers, and return to the atmosphere through evaporation and transpiration. Water moves through this cycle between the earth's oceans, atmosphere, and land.
The water cycle demonstrates how water is constantly moving both inside the Earth and in the atmosphere.
It is a complicated system with a wide range of processes.
Liquid water evaporates to make water vapor, which subsequently condenses to form clouds and returns to earth as rain and snow.
The hydrologic cycle is crucial because it determines how water gets to people, plants, and other species.
Thus, when ocean water evaporates and turns into water vapor, bigger droplets that have formed fall as precipitation and the cycle is named as water cycle.
To learn more about water cycle, refer to the link below:
https://brainly.com/question/1151425
#SPJ2
Sustainability is the ability to sustain production of goods today without
impairing our ability to produce goods in the future. Managing resources
for their continued use, not just conservation is the ultimate goal of
sustainability Sustainability of land use is involved in three parts. Which
areas are these? *
A) reduce, reuse, recycle
B) social, environment, economy
C) poverty, agriculture, health
D) biodiversity, environment, waste managementOption 1
Answers
Answer:
It's B.
Explanation:
I took the thing to. Mrs. A's class?
the chest is ________ and _________ to the shoulder.
Answers
The chest is closer and medial to the shoulder.
The chest is positioned medial to the shoulder. This indicates that the breast has moved closer to the midline. The shoulder is thought to lie lateral to the breast.
The sternum(chest) is located between the shoulders. The ears are positioned lateral to the nose. The skin is close to the heart. The heart extends all the way to the ribcage.
The shoulders are lateral to the breastbone, which means they are further away from the origin of a body part or the site of attachment of a limb to the body trunk. The ankle is distal to the knee, for example. The wrist is positioned distal to the elbow.
To know more about bones, visit,
https://brainly.com/question/870752
#SPJ4
Are gender traits completely a result of societal expectations?
Answers
Answer:No
Explanation:
Gender traits in human are different and determined by your biophysical processes. Not at all a societal expectations.
Human gender features vary and are influenced by your biophysical processes. Not at all what society would expect.
What is Societal expectations?We often care what our close friends and family think of us when it comes to them. The impact of others on our thoughts, feelings, and behaviors is known as social influence.
Social institutions include things like family and friends. Religious organizations, the media, and socioeconomic status organizations are other social institutions. These can all have an impact on our actions, thoughts, and emotions.
As we explore some theories relating to the concept of social expectations, let this serve as a unifying principle. We are taught what is right and wrong when we are little children. We learn what is wrong in stage one because we are punished for it.
Therefore, Human gender features vary and are influenced by your biophysical processes. Not at all what society would expect.
To learn more about Social expectations, refer to the link:
https://brainly.com/question/28247723
#SPJ7
15. The most important element necessary for life that makes up EVERY macromolecule is
A. Hydrogen
B. Nitrogen
C. Carbon
D. Oxygen
It's Not Rocket Science
Answers
Answer:A HYDROGEN
Explanation:
Which does the electron transport chain do during
cellular respiration?
A. Provides energy for pumping of hydrogen ions
B. Makes more energy carriers for respiration
C. Breaks down glucose into pyruvate molecules
D. Uses carbon dioxide and water to make glucose
Answers
Answer:
During this process electrons are exchanged between molecules, which creates a chemical gradient that allows for the production of ATP. The most vital part of this process is the electron transport chain, which produces more ATP than any other part of cellular respiration.
Answer:
a. provides energy for pumping of hydrogen ions
Explanation:
What sentence best supports the staternent that hormones are involved in the regulation of homeostasas? The hormone melatonin induces sleep and its production is slowed by exposure to light. The hormone cortisol suppresses the immune system and is produced when the body is under stress. The hormone oxytocin promotes labor contractions of the uterus during childbirth. The hormone erythropoeitin increases the production of red blood cells when oxygen levels are low.
Answers
The sentence that supports the statement that hormones are involved in the regulation of homeostasis is: The hormone erythropoietin increases the production of red blood cells when oxygen levels are low.
Homeostasis is the condition of maintaining the adequate conditions inside the living body that are most suitable for its survival. It is the state of steady internal, physical, and chemical conditions. The correct temperature, adequate oxygen concentrations, adequate fluids inside the body are the examples of homeostasis.
Erythropoietin is the hormone produced by the kidney cells that enhances the production of RBCs in the body. This in turn enhances the oxygen concentration inside the body.
To know more about erythropoietin, here
brainly.com/question/11995962
#SPJ1
Select the correct answer.
What is a substance?
A. a uniform mixture that can't be separated
O B. a mixture that can be separated
OC. a single component that can't be separated
D. a single component that can be separa ed
Answers
A substance is a single component that can't be separated (option C).
What is a substance?A substance in chemistry is a chemical substance is a form of matter having constant chemical composition and characteristic properties.
Every pure element and compound is a substance. Iron is an element and hence is also a substance. Methane is a compound and hence is also a substance.
According to this question, a substance refers to a single component that cannot be separated using chemical means e.g. elements, compounds.
Learn more about substances at: https://brainly.com/question/24372098
#SPJ1
what vocabulary word would mean A species that the other species in an ecosystem largely depend. such that if were removed the ecosystem would change drastically
Answers
Answer:
interdependence
Explanation:
xtjzutxgjxbmdiyhc
HELP PLEASE
At Love Canal in the 1970s, there was an environmental disaster. In response, the Superfund law was passed. Why can we view Love Canal and the creation of the Superfund as a positive environmental event?
A. It allowed the EPA to find toxic waste sites and force the responsible parties to clean up the sites.
B. It provided money to businesses responsible for toxic waste sites to clean up their pollution
C. It helped boost the economy among those waste sites
D. It helped identify toxic waste site and move people away from them
Answers
Answer:I’m stuck on the same question
Explanation:
large, tender, swollen areas caused by a staphylococcal infection around hair follicles or sebaceous glands are known as:
Answers
Large, tender, swollen areas caused by a staphylococcal infection around hair follicles or sebaceous glands are known as: folliculitis.
Hair follicle inflammation leads to the common skin ailment known as foliculitis. It's frequently brought on by a bacterial infection. The tiny pockets (hair follicles) from which each hair emerges may at first appear to be little pimples. It can be uncomfortable, painful, and humiliating. Crusty sores may develop as the illness spreads.
With simple self-care, mild folliculitis will probably cure without leaving any scars in a few days. Prescription medication may be required for more serious or recurring infections. Severe infections that go untreated can result in scarring and irreversible hair loss. Barber's itch and hot tub rash are two names for specific forms of folliculitis.
Deep and superficial folliculitis are the two basic forms. The deep form affects the whole follicle and is typically more severe; the superficial kind just affects a portion of the follicle.
Learn more about Folliculitis:
https://brainly.com/question/30450218
#SPJ4