The Friedel–crafts alkylation provide a nice way of attaching an alkyl group to an aromatic compound.
What is Friedel–crafts alkylation?The Friedel–crafts alkylation occurs when an alkyl group is added to an aromatic compound.
The reaction mechanism commences with the attack of an alkyl halide on an aromatic substrate using AlCl3 as a catalyst. This question is incomplete henece we can not draw the structure of the product. The alkyl portion of the alkyl halide is now attached to the aromatic compound at te end of the reaction.
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Carson’s class visited a hydroelectric plant on a field trip during their study of energy. The process interested him, and he had the chance to observe it in action. Explain how moving water generates electrical power, and describe where it goes.
Answer:
look in your science book
Explanation:
Hydroelectricity or hydroelectric power is the electricity generated from hydropower. It is the Hydropower which supplies one sixth of the worlds electricity. Here water in motion is used to generate the electricity.
How water generates electricity?Hydroelectricity is produced by utilizing the gravitational force of moving water. Hydropower plant requires a dam. The dam is a massive wall that blocks the flow of the river, therefore a lot of water collects behind the dam. Near bottom of the dam, there is an intake from which water is left into the dam.
The device which is used to obtain energy from the moving water is called the turbine. The turbine is connected by a shaft to the generator. When the water rotates the turbine, electrical energy is generated.
Hydropower plants also have a pumped storage where the water is kept as a reserve for periods of peak power demand.
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The chemical equation below shows the decomposition of nitrogen triiodide (NI3) into nitrogen (N2) and iodine (I2). 2NI3 Right arrow. N2 3I2 The molar mass of NI3 is 394. 71 g/mol. How many moles of I2 will form 3. 58 g of NI3? 0. 00907 moles 0. 00940 moles 0. 0136 moles 0. 0212 moles.
The moles of I₂ will form from the decomposition of 3.58g of NI₃ is 0.0136 moles.
How we calculate moles?Moles of any substance will be calculated as:
n = W/M, where
W = required mass
M = molar mass
Given chemical reaction is:
2NI₃ → N₂ + 3I₂
Moles of 3.58g of NI₃ will be calculated as:
n = 3.58g / 394. 71 g/mol = 0.009 moles
From the stoichiometry of the solution, it is clear that:
2 moles of NI₃ = produce 3 moles of I₂
0.009 moles of NI₃ = produce 3/2×0.009=0.0136 moles of I₂
Hence, option (3) is correct i.e. 0.0136 moles.
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A neutral cloth and a neutral rod are rubbed together. Electrons are transferred from the rod to the cloth. What will be the final charge on the cloth?
Answer: The net charge on the cloth with be negative.
Explanation:
Because electrons are being transferred from the neutral rod to the neutral rod to the neutral cloth, the cloth will become negative due to the excess electrons. (The rod will also become positively charged, but that’s beyond the scope of the question.)
When a neutral cloth and a neutral rod are rubbed together then the final charge on the cloth is negative.
What is transfer of charge from material ?Whenever electrons are transferred between objects, neutral matter becomes charged. For example, when atoms lose or gain electrons they become charged particles called ions. Three ways electrons can be transferred in a material that are conduction, friction, and polarization.
How does the charge transfer from rod to the cloth ?Rubbing a neutral rod with a neutral cloth also transfer charge from both the material. We know that a metal rod is a conductor of electricity whereas the cloth is an insulator that does not conduct electricity. When both the rod and cloth is rubbed, electrons are transferred due to friction on the material. Electrons are always negatively charged. As the rod and cloth is rubbed, the electrons flow from the rod to the cloth thereby making the rod as positively charged and the cloth as negatively charged.
Thus, when a neutral cloth and a neutral rod are rubbed together then the final charge on the cloth is negative.
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Why would you argue this is the best energy source to use?
Answer:
really its tought or we can say confusing
°__°
There are roughly 720 billion metric tons of carbon in the atmosphere. An even bigger carbon sink is found in the oceans, which contain about 40 trillion metric tons. Human activities increase the amount of carbon stored in these reservoirs. The primary source of this increase is the combustion of fossil fuels, which generates about 6 billion metric tons of carbon per year. Deforestation adds an additional 2 billion metric tons annually. Whereas 25% of this flux ends up being absorbed by the oceans and another 25% is absorbed by plants, 50% stays in the atmosphere for the duration of its residence time. How much carbon will human activities add to the atmosphere over the course of five years
A production of 17.5 × 10⁹ tonnes of carbon will be added to the atmosphere over the course of five years.
How to determine the potential carbon generation due to human activities
In accordance with the principle of mass conservation, mass is not created nor destroyed, just transformed as we infer from statement.
The total carbon generation due to human activities is the sum of the effects derived from the combustion of fossil fuels and the deforestation, whose total over the course of five years is:
[tex]x = (5\,years)\cdot \left(6\times 10^{9}\,\frac{t}{yr} + 2\times 10^{9}\,\frac{t}{yr} \right)[/tex]
[tex]x = 35\times 10^{9}\,t[/tex]
And the part of this production that will remain in the atmosphere during its residence time is:
[tex]x' = 0.5\cdot x[/tex]
[tex]x' = 17.5\times 10^{9}\,t[/tex]
A production of 17.5 × 10⁹ tonnes of carbon will be added to the atmosphere over the course of five years. [tex]\blacksquare[/tex]
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What are two benefits of using tides for energy?Good explanation=Brainliest.
Answer:
Advantages of tidal energyRenewable.
Tidal energy is a renewable source of energy, which means the energy doesn’t deplete as it is used. …
Zero carbon emissions. In addition to being a renewable energy source, tidal power stations do not emit greenhouse gasses during electricity generation. … Predictable. … High power output.
Explanation:
Carbon dioxide emissions have been linked to increased air pollution. The following table lists some possible public policies aimed at reducing the amount of carbon dioxide in the air
Some possible public policies aimed at reducing the amount of carbon dioxide in the air is that companies should make use of new emissions technology to avoid air pollution.
What is air pollution?What is air pollution?Air pollution is the release of substance that are dangerous or harmful to human health into the environment.
Excessive release of carbon dioxide into the atmosphere causes pollution and deplete our ozone layer.
One of the policy government have out in check is that all companies should purchase or make use of new emissions technology to avoid polluting the environment and causing harm to human health.
Therefore, some possible public policies aimed at reducing the amount of carbon dioxide in the air is that companies should make use of new emissions technology to avoid air pollution.
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Many policies are established to control air pollution like Tradable Permit System, Corrective Tax, Command-and-Control Policy, and Corrective Subsidy.
What are air pollution control policies?A corrective subsidy is a policy that encourages people to plant trees. Command-and-Control Policy or the regulation policy limits the emission of the particles that affect and harms the air and mandates the use of emissions-reducing technology.
Corrective Tax policy discourages negative effect behavior and imposes Pigovian tax that helps in achieving optimal pollutants. Tradable Permit System allows the figuring of the individual pollution emission.
Therefore, public policies are aimed to reduce air pollution through various means.
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Which can be directly linked to a reduction in the surface area available for gas exchange in human lungs
Emphysema is directly linked to a reduction in the surface area available for gas exchange in the human lungs.
What is Emphysema?Emphysema is a lung disease that causes shortness of breath.
The air sacs are damaged in this disease.
The inner walls of the air sacs weaken and rupture, resulting in a larger number of smaller air spaces.
Smoking is the primary cause of Emphysema
Thus, Emphysema is directly linked to a reduction in the surface area available for gas exchange in the human lungs.
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Given the following reaction, what is the conjugate acid of ammonia?
The ammonium ion is formed when ammonia accepts a proton from an acid.
What is conjugate acid?The term conjugate acid refers to a specie that is formed when a base accepts a proton. The conjugate acid of ammonia is the ammonium ion.
This is because, the ammonium ion is formed when ammonia accepts a proton from an acid.
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327 mL of 3.2 M HCl can be diluted to make mL of 2 M HCI.
Answer:
204,375 mL.
Explanation:
327 mL - 3.2 M
x mL - 2 M
x= (2 M x 327 mL) /3.2 M
x= 204,375 mL.
Are all black holes the same size? Explain
Answer:
According to my search, the answer is this.
Black holes come in several different sizes which are defined by their mass. Small black holes are usually the result of a relatively short and violent collapse of a star.
Explanation:
It only has mass. The amount of matter that has fallen into the black hole determines its mass. The more mass/matter a singularity has the larger its event horizon. So, the greater the black hole's mass the larger it is.
Answer: Black holes come in several different sizes which are defined by their mass. Small black holes are usually the result of a relatively short and violent collapse of a star.
Explanation:
0.05 moles of HCL are added to 2 L of H2O. What is the molarity of the solution?
Impossible to answer the question with the information provided.
1.60
0.025M
10.4
The molarity of the solution made by dissolving 0.05 mole of hydrogen chloride (HCl) in 2 L of water (H₂O) is 0.025 M
What is molarity?Molarity is defined as the mole of solute per unit litre of solution. Mathematically, it can be expressed as:
Molarity = mole / Volume
How to determine the molarity Mole of HCl = 0.05 mole Volume = 2 L Molarity =?Molarity = mole / Volume
Molarity = 0.05 / 2
Molarity = 0.025 M
Thus, the molarity of the solution is 0.025 M
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what is the barometric trend of the weather data?
Answer:
the change of atmospheric pressure during the last few (generally three) hours before a regular observation.
Explanation:
Even small changes in barometric pressure can greatly impact the weather. The Weather Trend directional arrow icon, included on many AcuRite weather station products, will show one of the following three barometric pressure trend directions, indicating potential future weather conditions.
If 15.0 mL of 12.0 M H3PO4 reacts with 100.0 mL of 3.50 M of Ba(OH)2 , which substances is the limiting reactant?
2 H3PO4 + 3 Ba(OH)2 -> 6 H2O + BA3 ( PO4 )2
Use the formula stated below
[tex]\boxed{\sf Molarity=\dfrac{Moles\:of\:solute}{Volume\:in\:L}}[/tex]
So
#H_3PO_4
No of moles[tex]\\ \tt\Rrightarrow n=0.015(12)=0.18moles[/tex]
#Ba(OH)_2
[tex]\\ \tt\Rrightarrow n=0.1(3.5)=0.35mol[/tex]
Barium hydroxide is moreHence H_3PO_4 is the limiting reagent
Answer:
hope it's helpful to you
Approximate the solution to the equation using three iterations of successive approximation
A solution has to do with the presence of a solute where there is a homogenous mixture of different substances in order to get their limit of solubility.
What is an Iteration?This refers to a method in organic chemistry where there is a sequence of reactions that are used to synthesize molecules.
Please note that your question is incomplete so I gave you a general overview to help you get a better understanding of the concept.
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NaCl and AgNO3 react in a double replacement reaction. Which is one of the products of this reaction?
NaNO3
AgClO3
CO2
NaAg
Answer:
nano3+agcl2
Explanation:
double displacement reaction
Which ion combines with ba2 to form a compound that is most soluble in water
Answer:
(2) OH- is the answer.
Explanation:
Hope this helps:)...if not then sorry for wasting your time and may God bless you:)
The ions that combine with Ba2 to form the compound most soluble in water is OH- ion.
What is barium?Barium is a chemical element with atomic number 58.
Barium reacts with the hydroxide ion to form barium hydroxide. It is also called baryta water.
The reaction is [tex]Ba^2^+ aq + 2OH^- \rightarrow Ba(OH)_2 (aq)[/tex]
Thus, the ions that combine with Ba2 to form the compound most soluble in water is OH- ion.
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Solutions of monosodium phosphate and disodium phosphate are combined in equal volume to produce a buffer. Identify the combination that will produce the buffer with the highest buffer capacity
Answer: 0.1M NaH2PO4 & 0.1M Na2HPO4
Explanation:
How many grams of sodium hydroxide (NaOH) do you need to get rid of 3000 grams of CO2? Don't worry about sig figs for this question.
Answer:
It would require 80 g of NaOH .
Explanation:
What is the difference between solvation and dissociation
Answer:
The key difference between dissociation and solvation is that dissociation is the breakdown of a substance into the atoms or ions from which the substance is made of whereas solvation is the dissolution of a substance in a solvent due to the attraction forces between solvent molecules and the components.
Explanation:
Solvation refers to the process of surrounding solute particles with solvent molecules, leading to the formation of a solution. Dissociation specifically refers to the breaking apart of ionic compounds or molecules into their constituent ions when dissolved in a solvent.
Solvation occurs due to the attractive forces between the solute and solvent molecules, such as dipole-dipole interactions or hydrogen bonding. The result of solvation is the formation of a homogeneous solution where the solute particles are evenly distributed at the molecular level within the solvent.
Ionic compounds are composed of positively charged cations and negatively charged anions held together by electrostatic forces. When an ionic compound is dissolved in a solvent, such as water, the solvent molecules interact with the compound's ions, pulling them apart and surrounding them.
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_____is the rate of change of displacement
Answer:
Velocity
Explanation:
The rate of change of displacement is velocity.
Answer:
Velocity
Explanation:
The rate of change of displacement with time is called velocity.
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You’re sitting at a car race and the cars sound differently when they approach as opposed to when they are moving away. Why might this be true? Explain in detail.
Answer:
I have no clue this qestion is kinda stumping but it a really good question it got me thinking but i don't know if there is a right answer
Explanation:
I don't know
a system with 1 mole of an ideal gas changes its volume from 10 L to 1 L by isothermal compressoin. What is the change in entropy of the system
Answer:
ΔS=2.303 n Rlog(
V
1
V
2
)
=2.303×10×8.314log(
10
100
)=191.47 JK
−1
Thus ΔS=191.47JK
−1
Explanation:
Based on the graph what is the approximate half-life of the reaction shown below
Draw the alkyl bromide(s) you would use in a malonic ester synthesis of ethyl 2-methylbutanoate
The structure of the alkyl bromides used in a malonic ester synthesis of ethyl 2-methyl-4-pentenoate are as drawn in the attached image.
Ethyl 2-methyl-4-pentenoate by Malonic ester synthesis.The malonic ester synthesis is a chemical reaction characterized by the alkylation of diethyl malonate or a similar ester of malonic acid at the carbon alpha (directly adjacent) to both carbonyl groups, and subsequently converted to a substituted acetic acid.
Hence, it follows from the structure of Ethyl 2-methyl-4-pentenoate that the alkyl bromides used are Ethyl bromide and methyl bromide.
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Alkyl bromide is a compound that contains a halogen atom in alkane based structure. The structure of the alkyl bromides is attached in the image below.
What is Malonic ester synthesis?Malonic ester synthesis is the alkylation of an ester of malonic acid or diethyl malonate at alpha carbon and is converted to substituted acetic acid.
In malonic ester synthesis of ethyl 2-methyl butanoate, ethyl bromide and methyl bromide are the alkyl bromides used and their images are attached below.
Therefore, alkyl bromides used in the synthesis are ethyl bromide and methyl bromide.
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which element would be most likely to lose electrons in chemical bond
What is the substance that is dissolved in a solution?
A)solvent
B)solute
C) mixture
D) electrolyte
Answer:
solute dissolves in a solution
Answer:
solvent
Explanation:
because solvent are liquid that disolves
The rate of reaction between two gases increases when the temperature is increased and a catalyst is added. Which statements correctly describe the effect on the reaction?
I. Increasing temperature increases collision frequency
II. Increasing temperature decreases activation energy
III. Adding a catalyst increases the activation energy requirement
IV. Adding a catalyst decreases the activation energy requirement
Group of answer choices
I and III
II and IV
I and IV
II and III
Answer:
The answer is I and III :)
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how many elements are in c17h19no3
Answer:
Morphine contains total 40 atom(s); 19 Hydrogen atom(s), 17 Carbon atom(s), 1 Nitrogen atom(s) and 3 Oxygen atom(s).
Explanation:
On all aerosol cans you see a warning that tells you to keep the can
away from heat because of the danger of explosion. What is the
potential volume of the gas contained in a 500.0 mL can at 25°C if it
were heated to 54°C. In other words if the can could expand to allow
the gas to take up a greater volume, what would be the new volume of
the gas when heated as previously described?
Gas laws show the relationship between tempertaure, pressure, volume, volume and number of moles. The new volume of the gas is 549 mL.
What is Charles law?Charles law states that, the volume of a given mass of gas is directly proportional to its temperature at constant pressure .
Given that;
V1 = 500.0 mL
T1 = 25°C or 298 K
V2 = ?
T2 = 54°C + 273 = 327 K
Since;
V1/T1 = V2/T2
V1T2 = V2T1
V2 = V1T2/T1
V2= 500.0 mL * 327 K/298 K
V2 = 549 mL
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