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Naya [18.7K]
3 years ago
15

Use a sheet of paper to answer the following question. Take a picture of your answers and attach to this assignment. Predict the

product formed in the nucleophilic aromatic substitution reaction between 1-chloro-2,4-dinitrobenzene and sodium methoxide (NaOCH3). Draw the mechanism of the reaction in (a), showing why the product you have selected is formed.

Chemistry
2 answers:
romanna [79]3 years ago
5 0

Answer:1-methoxy-2,4-dinitrobenzene

Explanation:

The nitro groups are strongly electron withdrawing and promote nucleophilic substitution reactions where one of the original substituents is removed and replaced by a strong nucleophile such as the methoxy group. The mechanism of the reaction is attached below. The electron withdrawing nitrogroup assists the formation of the intermediate in the reaction as shown.

Alja [10]3 years ago
4 0

Answer: 1-Methoxy-2,4-dinitrobenzene is formed which is solublw in the solution of hot methanol giving it almost a 95% transperency.

Explanation:

Its not SN1 or SN2 infact it is "Nucleophilic aromatic substitution and a SNAr reaction"

At first initial step is the attach of the nucleophile (CH₃O⁻) as the methanol and Sodium Ethoxide are in equiliberium with each other where the Pi bonds are broken and then where the chlorine is attached and then this pi bond is travels to the Electron withdrawing group that is ortho or para to the leaving group and the double bond forms between the carbon and the Electron withdrawing group. The last step follows the elimination of chlorine and the methoxide group cannot bond with electron withdrawing group as they both negative in charge.

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Answer:

A. Yes, the substance must be water.

Explanation:

The density of a substance is unique to it. Density is defined the as the amount of substance contained per volume.

One of the ways of identifying a substance is to determine its density. Every matter is known to have their own specific densities. This makes them different from other substances. The density of gold is unique to it and it differs from that of silver.

In fact, water has density of 1.00gcm⁻³. Experimental errors and some little factors must have altered our expected figure. This a case of precision and accuracy in the experiment.

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What process created the sand and the soil?
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Answer:

They are produced from rocks (parent material) through the processes of weathering and natural erosion.

Explanation:

Soil minerals form the basis of soil. They are produced from rocks (parent material) through the processes of weathering and natural erosion. Water, wind, temperature change, gravity, chemical interaction, living organisms and pressure differences all help break down parent material.

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3 years ago
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In Ontario, some electricity comes from coal-burning generators. Coal is a natural form of carbon that has a large amount of sul
irinina [24]

Answer:

a)

C(s)+O_{2}(g) \rightarrow CO_{2}(g)

S(s)+O_{2}(g) \rightarrow SO_{2}(g)

b)

Sulphurdioxide

c)

SO_{2}(g) + H_{2}O(l) \rightarrow H_{2}SO_{3}(l)

SO_{2}(g) + \frac{1}{2}O_{2} \rightarrow SO_{3}(g)

d)  

Incomplete combustion produce harmful gases.

Explanation:

a)

Carbon reacts with atmospheric oxygen to form carbondioxide as well as sulphur dioxide.

The chemical equations are as follows.

C(s)+O_{2}(g) \rightarrow CO_{2}(g)

S(s)+O_{2}(g) \rightarrow SO_{2}(g)

b)

Sulfur dioxide is very harmful to the environment to cause acid rains.

This harmful gas mix with rain water to form  sulphuric acid.

c)

The balanced chemical equation for the reaction that produces harmful environmental effects is as follows.

SO_{2}(g) + H_{2}O(l) \rightarrow H_{2}SO_{3}(l)

SO_{2}(g) + \frac{1}{2}O_{2} \rightarrow SO_{3}(g)

SO_{3}(g) +H_{2}O(l) \rightarrow H_{2}SO_{4}(l)

d)

In the absence of proper amount of oxygen required for combustion, incomplete combustion will take place which will result in formation of more carbondioxide an other harmful gases.

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3 years ago
The magnesium atom in chlorophyll A. is used to pass excited electrons on to pheophytin B. is coupled to the production of ATP C
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Answer:

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Two groups of students were tested to compare their speed working math problems. Each group were given the same problems. One gr
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Independent variable: calculators, computers

Dependent variable: speed

3 constants: seat, atmospheric condition, and time.

Control: none

<h3>What are variables</h3>

Variables are of different types in experiments. They can be:

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  • Dependent: variables whose value is dependent on the kind of independent variable supplied by the researcher. It is the actual variable that is measured during the course of experiments.
  • Constant: all other variables that are kept the same among experimental groups.

Thus, in this case, the independent variable will be the calculator or computer/calculator combination given to the two groups.

The dependent variable will be the speed at which each group finished solving the math problems.

The constant variable will be all other variables supplied to the two groups.

More on variables can be found here: brainly.com/question/20725701

#SPJ1

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