What is the major organic product obtained from the following reaction using excess of organometallic reagent?
a) tertiary alcohol
b) ketone secondary
c) alcohol aldehyde

Answers

Answer 1

Tertiary alcohol is the organic product obtained from the following reaction using an excess of organometallic reagents. So the correct option is A.

What are organometallic reagents?

The formula for a Grignard reagent is RMgX, where X is a halogen and R is an alkyl or aryl group (based on a benzene ring) group. We will assume that R is an alkyl group for the sake of this page. An example of a Grignard reagent is CH3CH2MgBr.

Chemically, organolithium reagents have the formula RLi. The reagent CH3CH2Li could be typical. Although many organometallic reagents are commercially accessible, making them is frequently essential.

Therefore, the correct option is A.

Read more about organometallic reagents, here

https://brainly.com/question/13299409

#SPJ4


Related Questions

Hi can someone please help me with this!

Answers

Experiment refer to a manner in which we can be able to establish the relationship between a dependent and an independent variable.

What is an experiment?

The term experiment refer to a manner in which we can be able to establish the relationship between a dependent and an independent variable. We have two different experiments and we shall treat them individually.

Experiment A

Independent variable - Remedy for the knee problem

Dependent variable - Degree of relief from the knee problem

Control group - Patients that received the placebo

Experiment B

Experimental variable -Effect on the deer

Independent variable - Whether or not tiger urine is used

Dependent variable -Repulsion of deer from tree seedlings

Control group - Tree seedlings not treated with tiger urine

Controlled variables - Type of seedlings, specie of deer and tiger

Learn more about experiment:https://brainly.com/question/17088282

#SPJ1

Pa regulations require that operators standing in close proximity (within 2 meters) of the x-ray source must wear at least _____ mm of lead equivalent personnel protective shielding such as an apron.

Answers

For a tube potential of 100 kVp, a 0.5 mm lead sheet (control) attenuated the primary X-ray beam by 98%.

What is an X-ray?

An X-ray or, much less often, an X-radiation is a penetrating kind of high-energy electromagnetic radiation. The majority of X-rays have wavelengths between 10 picometers and 10 nanometers, which translates to energies between 145 eV and 124 keV and frequencies between 30 petahertz and 30 exahertz.

What are the many X-ray types?There are various x-ray types, including:Plain x-rays or plain radiography.CT scanning, often known as computed tomography.Using fluoroscopy, you can see an organ in motion.Mammography is a breast x-ray procedure.Angiography is a blood vessel x-ray procedure.

To know more about X-ray visit:

https://brainly.com/question/23281551

#SPJ4

________ tests detect the presence of disease-producing organisms in urine, blood, and feces.

Answers

Microbiological tests detect the presence of disease-producing organisms in urine, blood, and feces.

What are Microbiological  tests ?

To ensure that items are safe for consumption, microbiological testing is utilized in the pharmaceutical, cosmetic, municipal water, and food and beverage industries. A variety of methods are regularly used to assure safety and regulatory compliance, including bioburden testing, mycoplasma identification, pathogen and spoilage testing, pyrogen testing, sterility testing, air monitoring, and surface testing.

What is pathogen ?

An organism that causes disease is called a pathogen.

Your body is already teeming with microbes. However, these organisms only become an issue if your immune system is compromised or if they are able to get into an area of your body that is typically sterile.

Different from other organisms, pathogens can spread disease once they enter the body.

A host is all that a pathogen requires to grow and survive. The pathogen enters a host's body, avoids the immune system's defenses, and uses the host's resources to replicate before leaving and infecting a new host.

They can be transmitted via skin-to-skin contact, body fluids, airborne particles, excrement, and surfaces that have been touched by an infected person.

To learn more about mycoplasma  click on the link below:

https://brainly.com/question/28044341

#SPJ4

How does mining impact the environment?

Answers

Mining has a negative impact on the environment by allowing toxic chemicals to harm wildlife and is denoted as option C.

What is Mining?

This is referred to as the process in which minerals and other geologic materials are extracted from the earth with the use of special types of equipment.

It is used to extract minerals which are usually in the form of ores from a mine and contains toxic chemicals such as heavy metals e.g lead etc. It impacts the environment by  allowing toxic chemicals to harm wildlife as result of sulfuric acid etc which are used to separate minerals from ore and ammonium nitrate which is used in blasting tunnels.

Read more about Mining here https://brainly.com/question/1278689

#SPJ1

How do electrostatic interactions contribute to the free enrgy of hydrolysis of atp?

Answers

Answer:

Electrostatic repulsion destabilizes ATP relative to the hydrolysis products and therefore makes hydrolysis favorable.

Explanation:

Whenever in contact with water, the highly unstable molecule of ATP hydrolyzes into ADP as well as inorganic phosphate. Those two high-energy containing phosphate bonds inside this molecule are what give it its high energy. When the high-energy containing phosphoanhydride bonds within the adenosine triphosphate (ATP) are broken, like inside the muscles, energy that had previously been deposited in these bonds is freed through the catabolism method known as ATP hydrolysis. The amount of energy should always be entered into ATP synthesis because ATP hydrolysis radiates. An endergonic mechanism is a phosphorylation, or perhaps the condensing of phosphate groups into AMP. Energy is required for a variety of vital biological and cellular functions, including ATP hydrolysis.

You can also get more information from the following link:

https://brainly.com/question/13056741

#SPJ4

DNA contains the instructions that cells need to make what organic compounds

Answers

Answer: develop, survive and reproduce

Explanation:

A(n) ______ nutrition state occurs when body tissues have enough essential nutrients from a variety of foods to support metabolic functions.

Answers

When bodily tissues have enough vital nutrients from a variety of diets to sustain metabolic processes, this is a desirable nutrition state.

What do we mean by nutrition?

A balanced meal should be consumed for good nourishment. You can get the nutrition and energy you need from food and drink. Making better eating decisions may be made simpler for you if you understand these nutrition terminology. Find out more definitions for vitamins, minerals, general health, fitness, and general wellness.

Who was the father of nutrition?

In 1770, the father of chemistry and nutrition, Antoine Lavoisier, discovered metabolism, the body's process of converting food and oxygen into heat and water to produce energy.

To know more about nutrition visit:

https://brainly.com/question/2044102

#SPJ4

Suggest why starfish need to eat other organisms

Answers

Being carnivorous and moving very slowly, starfish must consume other species in order to survive.

Starfish consume a variety of creatures, including sponges, oysters, coral, mussels, and others.A starfish will stretch its stomach from this mouth and use it to entirely enclose its prey, such as a clam or a sea snail. In order to make it simpler to re-enter the starfish's mouth, their stomach then starts secreting digestive enzymes to dissect the prey animal's body.The majority of starfish are excellent at cleaning the algae, debris, and other trash that collects at the tank bottom. However, some are hunters that relish taking down inactive, slow-moving prey. The precise diet of a starfish depends on its species, location, and natural adaptations.

Learn more about starfish here:

https://brainly.com/question/178293

#SPJ9

_____________________ is an individual's genetic heritage; his or her actual genetic material

Answers

Genotype is an individual's genetic heritage; his or her actual genetic material.

An organism's genotype is made up of all of its genetic material. The alleles or variations that an individual carries in a specific gene or genetic region are also referred to as the genotype. A blood genotype reveals the complete genetic composition of a person's blood. There are typically five (5) distinct blood genotype types. AA, AS, AC, SS, and SC are their names.

The cells' genetic makeup is deoxyribonucleic acid or DNA. It determines your traits and was given to you by your parents. Another significant turning point in molecular biology was the realization that DNA is the genetic material. Your eligibility for clinical trials, the medications to avoid due to inhibitor development, or your carrier status may all depend on your genotype or genetic mutation.

To know more about genotype refer to:  https://brainly.com/question/12116830

#SPJ4

7) state 2 key characteristics and 2 examples for each of the following phyla: A) Mollusca B) Nematoda C) Arthropoda D) Annelida​

Answers

Answer:

Mollusca

Produce a shell reinforces with calciumBilateral symmetryExamples: Snails, octopus, and clams

Nematoda

Bilateral symmetryCylindrical in shapeExamples: Hookworm and eelworm

Arthropoda

Hard exoskeleton made of chitinSegmented bodies, jointed limbsExamples: Insects, spiders, and crabs

Annelida

Have segmented bodiesHave mouth and anusExamples: Earthworm and leach

HELP ASAP

Which of the following statement is NOT correct?

An organism can be made of just one cell

Cells come from other cells

Cells are the basic unit of life

All organisms are made of multiple cells

Answers

Answer: The last one

Explanation: Some organisms can be unicellular (made of one cell) like E coli and Protista

Explain active transport.

Answers

Explanation:

Active transport is basically like a movement cell because it moves ions or molecules across the cell membrane and into a higher concentration area. It requires energy.

The suffix -ed forms the past participle of a verb: work becomes worked. the
suffix -ing is used to form the present participle of a verb: swim becomes
swimming. using this information, define a developed country.

Answers

A developed country is one that has attained all the indices of development.

What is a developed country?

The term past participle refers to action that has been completed action. This implies that the past participle is something that has been finished sometime in the past. It is something that has happened  and is not presently ongoing.

When we talk about a developed country, we are talking about a a country that has attained all the indices of development such as good infrastructures, sound healthcare and a working political system.

Learn more about a developed country:https://brainly.com/question/14927048

#SPJ1

What is a possible rationale for the difference between the dna in chromatin and chromosome form?

Answers

A possible rationale for the difference between the DNA in chromatin and chromosome form is the structure of chromatin, loosely organized chromatin and condensed chromatin.

What is chromatin?

Chromatin is a macromolecular structure composed of DNA and associated proteins called histones, which can be transcriptionally inactive (heterochromatin) or active (euchromatin).

The difference between chromosomes and chromatin is based on the level of organization, which is associated with diverse factors that make this structure dynamic for cell division and/or transcriptional activity.

In conclusion, possible rationales for the difference between the DNA in chromatin and chromosome form are associated with the structure of chromatin, loosely organized chromatin facilitates transcription and condensed chromatin keeps the DNA organized.

Learn more about chromatin and chromosomes here:

https://brainly.com/question/11751001

#SPJ1

Iodophors and chloramines are similar in that they are both halogen-containing compounds that __________.

Answers

Iodophors and chloramines are similar because they are both halogen-containing compounds that slowly release their active ingredients because they release their active ingredients more slowly than the elemental forms of these halogens.

As we know, Iodophor is an iodine-containing solution used in the dairy and brewing industries as a sanitizer. Chloramines are disinfectants and are used to kill germs in drinking water. As both the compound used to kill bacteria, both contain halogen compounds which equalize the numbers of the hydrogen atoms.

Therefore, Iodophors and chloramines, both compounds, release their active ingredients slower because of their chemical properties, as halogen takes time to equalize the number of hydrogen atoms. Thus, Iodophors and chloramines are very active and effective and widely used by industries but are slower.

Learn more about halogen-containing compounds here

brainly.com/question/28102816

#SPJ4

Event-driven propagation:_______.
a. provides a means to duplicate data for events.
b. pushes data to duplicate sites as an event occurs.
c. pulls duplicate data from redundant sites.
d. triggers a virus.

Answers

Event-driven propagation pushes data to duplicate sites as an event occurs.

An event-driven architecture prevalent in modern applications developed with microservices uses events to trigger and interact between decoupled services. An event is a state change or an update, such as an item being added to a checkout process on an e-commerce webpage. Event-driven propagation pushes data to duplicate sites as an event occurs.

A data and application event-driven propagation is a contemporary design approach centered on data that describes "events," something that just happened. The taking of a measurement, pressing a button, or swiping a credit card are all examples of events.

To learn more about event-driven propagation: brainly.com/question/26678149

#SPJ4

Ways humans positive impact the nitrogen cycle

Answers

Humans positively impact the nitrogen cycle according to a recent study, humans are oversupplying ecosystems with nitrogen through the combustion of fossil fuels as well as an increase in industrial and agricultural activities that produce nitrogen. Although nitrogen is a necessary ingredient for life, it is a disaster for the ecosystem when present in large quantities.

The nitrogen cycle is the biogeochemical process through which nitrogen is changed into a variety of chemical forms as it moves across ecosystems in the atmosphere, on land, and in the sea. It is possible to convert nitrogen using both biological and physical methods.

The nitrogen cycle assists in introducing inert nitrogen from the air into plant and animal metabolic processes. The nitrogen cycle is crucial for plants because they need nitrogen to produce chlorophyll.

Because nitrogen is a necessary nutrient for supporting life on Earth, the nitrogen cycle is important. Amino acids, which are the building blocks of proteins, and nucleic acids, which are the building blocks of genetic material, both include a significant amount of nitrogen (RNA and DNA).

To know more about nitrogen cycle refer to:  https://brainly.com/question/1615727

#SPJ9

What four structures are located in the axial portion of the body? multiple select question.

Answers

Answer:

Following  four structures are located in the axial portion of the body:

Within the center core of the human body, there are 80 bones that make up the central axis of the body. The head, laryngeal skeleton, vertebrae, and thoracic cage are all parts of the axial skeleton. Skeletal bones are separated into two categories. The bones that make up the bony structures along the whole body's long axis are all part of the axial skeleton. The remaining skeleton is made up of something like the appendicular skeleton's bones plus muscles, which are termed that since they are extensions of the axial skeletal system. All bones of the shoulder joint, upper limbs, pelvic bones, and lower limbs make form the appendicular skeleton.

You can learn more from the following link:

https://brainly.com/question/23930021

#SPJ4

A woman suffers from ______ if endometrial tissue begins to grow within her abdominopelvic cavity. multiple choice question.

Answers

A woman suffers from Endometriosis if endometrial tissue begins to grow within her abdominopelvic cavity.

What is endometriosis?The endometrium, the tissue that normally coats the lining of your uterus, grows outside of it when you have endometriosis. This illness frequently causes pain. Endometriosis frequently affects the tissue lining your pelvis, fallopian tubes, and ovaries. With each menstrual cycle, endometrial-like tissue that has endometriosis acts like endometrial tissue would, thickening, deteriorating, and bleeding. However, because it can only go inside your body, this tissue becomes entrapped. Endometriomas, also known as endometrial cysts, can develop when endometriosis affects the ovaries. Endometriosis can occasionally cause severe pain, particularly during menstruation. Problems with fertility may also develop.

Learn more about the endometriosis with the help of the given link:

https://brainly.com/question/28303454

#SPJ4

What is a category of ai that attempts to emulate the way the human brain works?

Answers

Category of AI that attempts to emulate the way the human brain works neural network.

A neural network is a biological neural network made up of biological neurons or an artificial neural network used to solve artificial intelligence (AI) problems.

Artificial neural networks model biological neuron connections as weights between nodes. An excitatory link is represented by a positive weight, whereas an inhibitory connection is represented by a negative weight. Each input is given a weight before being added together.

These artificial networks can be applied to adaptive control, predictive modelling, and other tasks where a dataset can be utilised to train them.

To learn more about artificial intelligence, refer this link https://brainly.com/question/28448080

#SPJ4

What effect would substituting the atom in the circle with the atoms in the square (a) have on the chemical properties of the resulting molecule?

Answers

The correct answer is option f) Both a and c.

We know that the formation of the carbocation intermediate is the rate-limiting step in an SN1 reaction. The rate of this phase, and hence the rate of the total substitution reaction, is determined by the activation energy for the process in which the link between the carbon and the leaving group breaks and a carbocation is formed. According to Hammond's postulate, the faster this first bond-breaking event occurs, the more stable the carbocation intermediate is. In other words, the stability of the resulting carbocation intermediate greatly influences the chance that a nucleophilic substitution process would occur through a dissociative SN1 mechanism.

A carbocation is a positively charged entity that has very few electrons, thus anything that adds electron density to the area of electron poverty will help stabilize it. However, an electron-withdrawing group will destabilize a carbocation.

Alkyl groups, such as methyl, ethyl, and similar compounds, are weak electron-donor groups that stabilize adjacent carbocations. This means that more substituted carbocations are often more stable; for example, a tert-butyl carbocation is more stable than an isopropyl carbocation. Since methyl carbocations are even less stable than primary carbocations, they are rarely seen as reaction intermediates.

Additionally, adding methyl groups as new substituents to a molecule often makes it more lipophilic and less soluble in water. Therefore, it decreases solubility.

Therefore, if the H-atom in the ethane is replaced by the methyl group, then the resultant molecule has the following effects:  

The solubility of the resultant molecule in water significantly decreases.The reactivity of the resultant molecule will significantly decrease.

Read more about SN1 reaction:

https://brainly.com/question/10666011

#SPJ4

Look at the molecules shown below and answer the following questions:

What effect would substituting the atom in the circle with the atoms in the square (A) have on the chemical properties of the resulting molecule?

What effect would substituting the atom in the circle with the atoms in the square (A) have on the chemical properties of the resulting molecule?

a) The solubility of the resulting molecule in water will significantly decrease.

b) The polarity of the resulting molecule will significantly increase

c) The reactivity of the resulting molecule will significantly decrease.

d) None of the above

e) All of the above

f) Both a and c

Is it better to rely on regional data from individual countries when looking at global trends?

Answers

No, it is not better to rely on regional data from individual countries when looking at global trends.

Disappointment with strategies that operate at a global level may explain why companies that do perform well internationally apply a regionally oriented strategy in addition to—or even instead of—a global one. put differently, global as well as regional companies need to think through strategy at the regional level.

What is regional data?

Regional data collection improves the performance of your sites and mobile apps by minimizing the space and total time required for data to be sent across a secure connection to data centers.

To know more about regional data go to the given link:

https://brainly.com/question/10293630

From which two food groups should teens select the same number of servings each day?

Answers

Fruits and vegetables are the two food groups for which teens should select the same number of servings each day

What do number of servings mean ?

The quantity of food listed on a product's Nutrition Facts label, also known as the food label, is referred to as a serving. The serving sizes vary between items. Sizes can be expressed as numbers, such as three crackers, or as cups, ounces, grammes, pieces, or slices.

The serving size indicates how much food or liquid an individual generally consumes. It does not suggest how much food or liquid you should consume. It's critical to understand that all nutritional information on labels, including the quantity of calories, refers to serving sizes.

Learn more about Servings here:

https://brainly.com/question/1481513

#SPJ4

The dermis contains blood vessels and nerve fibers while the epidermis does not.
a. true
b. false

Answers

It is true that the dermis contains blood vessels and nerve fibers while the epidermis does not.

Epidermis is the outermost payer of the skin. It has no supply of blood vessels hence it gets its nutrients and other requirements from the dermis layer. The function of epidermis is to protect the layers below it from the outer environment, harmful pathogens and also protect the moisture if the skin.

Dermis is the layer present beneath the epidermis and is very thick. This layer is considered to be the real skin. The reason for it is that dermis has all the necessary components of the skin like blood vessels, nerves, hair follicles, glands, etc.

To know more about dermis, here

brainly.com/question/14869549

#SPJ4

In sensory memory, auditory stimuli are to _____ memory as visual stimuli are to ______ memory.

Answers

In sensory memory, auditory stimuli are to echoic memory as visual stimuli are to iconic memory.

What is Sensory memory ?

After the initial stimulus has stopped, humans can still remember their impressions of sensory information thanks to sensory memory, which is a very short memory. It is frequently considered the first stage of memory, registering a huge amount of information about the surroundings for a very short time.

Examples of sensory memory :

The information we get from our senses is stored in the sensory register and memory. Examples of sensory memory include smelling chicken noodle soup, feeling gum under a chair, and seeing a dog. These signals are sent to the brain by our eyes, noses, and nerves.

To know more about visual stimuli visit :

https://brainly.com/question/14578933

#SPJ4

If an atom has 14 protons, 11 neutrons, and 17 electrons, what is the atom's electrical charge?

Answers

Answer:

It would be=

14 protons -

17 electrons=

-3 :D

When you subtract protons from electrons, you get the electrical charge.

Explanation:

If this is wrong please report/dislike!! much love <33 | have a nice day!!

Why are some bacteria, such as those of the genera mycobacterium and nocardia, not effectively stained with the gram stain?

Answers

Answer:

Some bacteria, such as those of the genera mycobacterium and nocardia, not effectively stained with the gram stain because they have too much peptidoglycan in their cell walls.

Explanation:

Across most types of bacteria, the cytoplasmic membranes is encased in a hard material called peptidoglycan. It helps maintain cell shape all across the life cycle and shields bacterial cells against environmental stress. The production of peptidoglycan has a significant role in controlling bacterial cell division. The bacterial cell wall's peptidoglycan plays a structural role by providing structural support and balancing the cytoplasm's osmolarity. Additionally, peptidoglycan participates in binary fission throughout bacterial cell division. Christian Gram, a microbiologist, developed a test in 1884 which might identify whether a bacterium possessed a strong, mesh-like membrane known as peptidoglycan. Numerous bacteriophages, eukaryotic, and bacteria all generate peptididoglycan hydrolases.

You can learn more at:

https://brainly.com/question/28501403

#SPJ4

Two unaffected individuals can produce an affected offspring. this is characteristic of:_______

Answers

Two unaffected individuals can produce an affected offspring. this is characteristic of: recessive inheritance.

What is recessive inheritance?

Due to recessive inheritance, a disease can only be brought on by a pair of faulty genes. Carriers are individuals who have only one faulty gene out of the pair. Most frequently, the condition has no effect on these people. They can, however, convey the faulty gene to their offspring.

Dominant/recessive interactions are the most frequent type of allele-allele interaction. When one (dominant) allele of a gene effectively outweighs the other (recessive) allele, the allele is said to be dominant.

To learn more about faulty gene click on the link below:

https://brainly.com/question/10222799

#SPJ4

To cuvier, the differences in fossils from different strata were evidence for __________.

Answers

Local catastrophic events, Cuvier was the first to show that. The differences in fossils from different strata were evidence for local catastrophic events such as droughts or floods.

What is strata?

Strata, the plural of the Latin term stratum, is another name for rock layers, and stratigraphy is the study of strata. Stratigraphy is the study of the features of stratified rocks, including their relationship to time.

According to the fossil correlation concept, strata that include certain fossils are also the same age since like assemblages of fossils have the same age.

As a result, fossils are highly helpful in correlating, or matching up, rock strata in exposures that are spread apart widely.

Therefore, Local catastrophic event's evidence for differences in fossils from different strata.

Learn more about strata here:

https://brainly.com/question/2785855

#SPJ4

If you wanted to see a section through both lungs at the same time, you could make a cut in the __________ of the __________ plane.

Answers

The correct answer for this question is coronal, and transverse sections.

To visualize both lungs, the heart, the spinal cord, and the ribs, a cut must be made through the transverse (horizontal) plane. This plane divides the body into superior and inferior portions. Cutting between vertebral levels T5 and T8 will ensure all of these structures are in the anatomical section

The lungs are two spongy, air-filled organs that are positioned on either side of the chest (thorax). The trachea (windpipe) transports inhaled air to the lungs via tubular branches known as bronchi. The bronchi divide further into smaller and smaller branches (bronchioles), eventually becoming tiny.

To know more about Lungs, click here:

https://brainly.com/question/13210870

#SPJ4

Other Questions
What 3 elements of design create the pattern in this artwork? Research on ________ subjects must always involve ________. group of answer choices human; obtaining informed co Under perfect competition, any profit-maximizing producer faces a market price equal to its? Complete the statements by dragging the correct answer to the blank. The Morris family rentedboat over Labor Day weekend. The boat uses an average of 2 gallons of gas per hourwhen it is pulling water skiers and 1 gallon per hour when not pulling water-skiers. The gas for the boat costs $2.25per gallon How much money is spent on gas per hour when the boat is pulling water-skiers if the Marris family onlywater skied for 2 hours? Elements that naturally exist as two atoms are called _____.A) biatomicB) bimolecularC) dimolecularD) diatomic Que final me puedo inventar para el cuento de otra maldad de pateco Communication scholars view the flow of communication to be like a river because _____. Individuals with chronic alcoholism are predisposed to intracranial bleeding and hypoglycemia secondary to abnormalities in the? a) brain b) kidneys c) liver d) pancreas What resolution came about in response to the debate over legislative representation?. ____ psychology emphasizes the influence of survival instincts on behaviors. positive evolutionary cognitive multicultural n.D5. Simplify an expression forthe perimeter of the square.5.9x-335.9-3.3EE1635.9x-3.323.6x-13.2=50CAI dont understand how you get 50 How did the colonists begin to forge a separate, collective, "American" identity? Use the domain {1/2, 1, 2, 4, 8, 16} and plot the points on the graph that would best satisfy the equation y = log2x. How does society react to the hunger games? 3) Female cardinals weight 16 grams" while males weight "20 grams what part of scientific method is that The conventional system of signs that indicate relative durations of long and short sounds is called. The benefit enjoyed by a third party that is not directly involved in the production or consumption of a good or service is? Harry, a wheat farmer, is deciding whether or not to add fertilizer to his crops. If he adds 1 pound of fertilizer per acre, the value of the resulting crops rises from $80 to $100 per acre. According to marginal analysis, harry should add fertilizer if it costs less than. Exercise 3 Identify the purpose and topic of each topic sentence given below.Annette is clearly the best candidate for mayor.