La clorurarea catalitică a toluenului, se obţine un amestec format din 2-clorotoluen, 4-clorotoluen şi benzennereacționat în raport molar de 3 : 2 : 1. Calculaţi cantitatea de 2-clorotoluen, exprimată în moli, care se obținedin 110,4 g de toluen, în în prezența catalizatorului FeCl3.

Answers

Answer 1

Answer:

i dont lnow you heat alcohol over an open flame


Related Questions

What happens to food we eat?

Answers

Answer:

It goes through our digestive system then though our bladder.

Answer: When we eat the food gets digested.

Explanation: Once filled with food, the stomach grinds and churns the food to break it down into small particles. It then pushes the small particles of food into the first part of the small intestine, called the duodenum. The small intestine is where most of the digestion and absorption of our food takes place.

When a substance was dissolved in water, the temperature of the water increased. This process is described as
A.
endothermic with the release of energy
B.
endothermic with the absorption of energy
C.
exothermic with the release of energy
D
exothermic with the absorption of energy

Answers

The correct answer will be A

Answer: a,

endothermic with the release of energy

What charge would an ion have if it had more electrons than protong?

A. It would be neutral, since electrons would be outside the nucleus.
B. It would have a net positive charge.
C. It would have no charge.
D. It would have a net negative charge.

Answers

Answer:

D. It would have a net negative charge

Explanation:

In an atom, there are electrons, protons and neutrons collectively called SUBATOMIC PARTICLES. The charge of an atom is determined by the number of electrons and protons in that atom. A neutral or uncharged atom possess the same number of electrons and protons.

The charge can thus be calculated as follows:

Charge of atom = no. of protons - no. of electrons.

Hence, when the number of electrons in an atom is higher than that of the protons, it means that the atom has gained negatively charged electrons, making that atom have a net negative charge. For example, In an atom that contains 10 protons and 11 electrons, the charge of that atom will be (10 - 11) = -1. The net charge of that atom will be -1, which is NEGATIVE.

where does energy come from? newsela

Answers

Answer:

All of our energy comes from the sun.

Explanation:

The sun sends out huge amounts of energy through its rays every day. Without the sun, life on earth would not exist, since our planet would be totally frozen.

Nate measured an iron bar. He put the iron bar in the hot sun. When he measured the bar after it had been in the sun, it was slightly longer. Which sentence best describes what happened to the iron atoms after the bar was left in the hot sun?
Consider what happens to an iron bar when left out and exposed to sunlight and why it happens.
Evaluate the statements and select the one that best represents what happens.
Provide your reasoning in the text box provided.

The number of atoms increased.
The size of the atoms increased.
The space between each atom increased.
The air in the spaces between the iron atoms expanded.

Answers

Answer:

need dim points back ma boi

Explanation:

which of the following is an example of a synthesis reaction

Answers

Answer: S+O2> SO2

Explanation:

A car with a mass of 3,500lbs accelerates negatively from 35m/s to 8m/s in 8s. What is the
car's negative acceleration?

Answers

Answer:

[tex]a=-3.37\ m/s^2[/tex]

Explanation:

Given that,

A car accelerates negatively from 35m/s to 8m/s in 8s.

We need to find the car's acceleration.

Initial speed, u = 35 m/s

Final speed, v = 8 m/s

Time, t = 8 s

The acceleration of an object is equal to the rate of change of velocity. So,

[tex]a=\dfrac{v-u}{t}[/tex]

Put all the values,

[tex]a=\dfrac{8-35}{8}\\\\a=-3.37\ m/s^2[/tex]

So, the acceleration of the car is equal to [tex]-3.37\ m/s^2[/tex].

Which organisms are consumers?

Select all correct answers.

mushrooms
monkey
grasshopper
bacteria
snake

Answers

Answer: snake grass hopper and monkey

Explanation: i took the test and this is what i got

Answer:

snake grasshopper and monkey

Explanation:

A flash contains 85.6g of C7H5NO3S (Saccharine) in 2.00 litre of a solution. What is the molarity?

Answers

Answer:

0.234 M

Explanation:

C- 12.009 x 7

H- 1.001 x 5

N- 14.006

O- 16 x 3

S- 32.059

___________+

183.133 g/mol

[tex]\frac{1mol}{183.133g} *\frac{85.6g}{2.00L}[/tex]  = 0.234 M Cancel out the grams mol/L equals molarity. Lowest significant figure is 3

When glucose is fermented, ethanol is formed together with ………………….

Answers

Answer:

carbon dioxide and oxygen

what are two places that producers can get energy?

Answers

Answer:

The Food Chain: The answer has to do with trophic levels. As you probably know, the organisms at the base of the food chain are photosynthetic; plants on land and phytoplankton (algae) in the oceans. These organisms are called the producers, and they get their energy directly from sunlight and inorganic nutrients.

Explanation:

Brainliest?

i need help in this can someone help

Answers

Answer:

the limiting reagent is butane

Explanation:

5C₄H₁₀ + 25O₂ → 20CO₂ + 5H₂0

What makes an atom stable?
a. Having the nucleus in the center
b. Being very small
c. Being neutral
d. Having the right number of protons and neutrons

Answers

D

Explanation:
An atom is stable if the forces among the particles that makeup the nucleus are balanced. An atom is unstable (radioactive) if these forces are unbalanced; if the nucleus has an excess of internal energy. Instability of an atom's nucleus may result from an excess of either neutrons or protons.

PLEASE HELP SOMEONE PLEASEEEE

Answers

Answer:

the answer is b

hope this helps you!!

Have a lovely day!

-millie :D

How many grams of solid iron will be produced from 32.1 grams of iron (III) oxide? Hint: Balance the equation first

Answers

Answer:

22.45g of Fe will be produced

Explanation:

The balanced reaction is:

Fe₂O₃(s) + 3CO(g) → 2Fe(s) + 3CO₂(g)

Where 1 mole of Iron (III) oxide reacts with 2 moles of Iron

To solve this question we have to find the moles of iron (III) oxide. With these moles and the balanced reaction we can find the moles of iron produced and its mass:

Moles iron (III) oxide -Molar mass: 159.69g/mol-

32.1g Fe₂O₃ * (1mol / 159.69g) = 0.201 moles Fe₂O₃

Moles Iron:

0.201 moles Fe₂O₃ * (2mol Fe / 1mol Fe₂O₃) = 0.402 moles of Fe

Mass Fe -Molar mass: 55.845g/mol-

0.402 moles of Fe * (55.845g/mol) =

22.45g of Fe will be produced

an archer releases an arrow toward a Target the arrow travels 166 m in 2 seconds what is the speed of the arrow​

Answers

the speed of arrow is 83m/per second

that means

83metres = 1 second

The arrow would cover the distance of 83 metres in 1 second

may this helps you

bye

Methane undergoes combustion. Which products form?


 
CO2, H2O, and O2

 
C and H2O

 
CO2 and H2O

 
CO2 and H​

Answers

When methane undergoes combustion the carbon dioxide (CO₂) and water (H₂O) is formed. Therefore, option C is correct.

What do you mean by combustion ?

A chemical reaction between two or more substances, usually involving oxygen, that produces heat and light in the form of a flame is called as combustion. The reaction is as follows:

CH4(g) + 2O₂(g) → CO₂(g) + 2H₂O

Methane burns in the presence of enough oxygen to produce carbon dioxide (CO₂) and water (H₂O). When it is burned, it produces a large amount of heat, making it an excellent fuel source.

Thus, option C is correct.

To learn more about the combustion, follow the link;

https://brainly.com/question/15117038

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What will the nervous system feedback do when the human body's temperature drops just below its normal range? Plssss help

Answers

Answer:

Homeostasis

Explanation:

The blood vessels constrict and you start to shiver, that shivering generates heat to warm the body to help to body temperature go back to normal. Homeostasis is the condition of keeping your body at a normal condition.

A thermite reaction realeses large amounts of heat and light resulting in the melting of the iron metal

Answers

Answer:

1. Fe₂O₃ : Al = 1 : 2

2. Fe₂O₃ : Al₂O₃ = 1 : 1

3. Fe₂O₃ : Fe = 1 : 2

Note: The question is incomplete. The complete question is given below :

A thermite reaction releases large amounts of heat and light, resulting in the melting of the iron metal that forms during the reaction. The balanced chemical equation is given below: Fe₂O₃(s) + 2Al(s) ---> Al₂O₃(s) + 2Fe(l) Determine the correct mole ratios for the following substances, based on this chemical equation.

Explanation:

A thermite reaction is a highly exothermic reaction that occurs between a mixture of powdered aluminium and iron (iii) oxide.

The reaction is a redox reaction which produces aluminium oxide and metallic iron.

The heat given out in the reaction melts the iron formed. It is used to join railway tracks or cracked machine parts. The molten iron runs down between the tracks and welds them together.

The balanced equation of the reaction is given below :

Fe₂O₃(s) + 2Al(s) ---> Al₂O₃(s) + 2Fe(l) + Heat

The mole ratio of the reactant and products are as follows:

1. 1 mole of Iron (iii) oxide and 2 moles of aluminium are combined

Fe₂O₃ : Al = 1 : 2

2. 1 mole of aluminium oxide is produced from 1 mole of iron (iii) oxide

Fe₂O₃ : Al₂O₃ = 1 : 1

3. 2 moles of of iron are produced from 1 mole of iron (iii) oxide

Fe₂O₃ : Fe = 1 : 2

A teacher reacts 84.0 g of sodium bicarbonate with excess hydrochloric acid. What is the percent yield for sodium chloride if 56.0 g of sodium chloride is produced?
4.20%
8.01%
92.0%
95.8%​

Answers

95.8% is the percent yield for sodium chloride if 56.0 g of sodium chloride is produced in the reaction.

How we calculate the percentage yield?

Percentage yield of any chemical reaction can be calculated as:

% yield = (Experimental yield/Theoretical yield) × 100

Given chemical reaction is:

NaHCO₃ + HCl → NaCl + CO₂ + H₂O

In the question it is given that 56 grams of NaCl is produced by mass. But according to the stoichiometry of the reaction 1 mole of NaCl will be produced whose mass should be 58.44 grams. So, % yield will be:

% yield = (56/58.44) × 100 = 95.8%

Hence, option (d) is correct it means 95.8% is the percent yield.

To know more about percent yield, visit the below link:

https://brainly.com/question/8638404

The characteristics of two unknown intermolecular forces, X and Y, are compared in the table.
Intermolecular Forces
х
Y
Occurs between molecules with instantaneous dipoles Occurs between molecules with permanent dipoles and ions
Which of the following conclusions about the two intermolecular forces is correct?
X represents London dispersion forces, and Y represents ion-dipole forces.
X represents dipole-dipole forces, and Y represents ion-dipole forces.
X represents hydrogen bonding, and Y represents dipole-dipole forces.
X represents London dispersion forces, and Y represents dipole-dipole forces.

Answers

Answer:

X represents London dispersion forces, and Y represents ion-dipole forces.

Explanation:

London forces occurs between molecules that are normally non-polar (electrically symmetric). It arises from instantaneous dipoles in molecules. It occurs in all substances.

Permanent dipoles are caused by non-symmetric electron distribution in molecules leading to a permanent dipole in the molecule such as in HCl. Interaction between the permanent dipole in these molecules and an ion is called ion-dipole interaction.

Hence; X represents London dispersion forces, and Y represents ion-dipole forces.

X represents London dispersion forces, and Y represents ion-dipole forces.

London forces:

London forces occurs between molecules that are normally non-polar (electrically symmetric). It arises from instantaneous dipoles in molecules. It occurs in all substances.For example: F₂, I₂

Ion-dipole forces:

Permanent dipoles are caused by non-symmetric electron distribution in molecules leading to a permanent dipole in the molecule such as in HCl. Interaction between the permanent dipole in these molecules and an ion is called ion-dipole interaction.For example: sodium ion [tex](Na^+)[/tex]and water molecule[tex](H_2O)[/tex]

Hence; X represents London dispersion forces,

and Y represents ion-dipole forces.

Learn more:

brainly.com/question/22602228

Define the term metal ore

Answers

Answer:

Ore is a deposit in Earth's crust of one or more valuable minerals. The most valuable ore deposits contain metals crucial to industry and trade, like copper, gold, and iron

The naturally occurring material from which a mineral or minerals of economic value can be extracted.

8. A transform boundary, where one tectonic plate slides past another, is likely to result in
which of the following?
A. Frequent earthquakes
B. Rift valley formations
C. Intense weathering
D. Mountain building
9. A rising hot air balloon is acted on by a force pulling it upward and by the force of gravity
Nonton's law of inertia what will happen to the balloon

Answers

Answer:      A. Frequent earthquakes

Explanation:

What is a peer review? *
A. A summary of results from several different experiments
B. A presentation of scientific ideas
C. group of scientists that analyze scientific experiments
D. The errors in an experiment

Answers

Answer: Hewo, there! your Answer is Below

C. group of scientists that analyze scientific experiments

Explanation:

the process of someone reading, checking, and giving his or her opinion about something that has been written by another scientist or expert working in the same subject area, or a piece of work in which this is done: All these papers have been published after being subjected to peer review.

Hope this Helps you !!!

Have a great day!!!

I think the answer is B

Define what natural gas is, explain how it forms, and
what it is used for today.

Answers

Answer:

is a naturally occurring hydrocarbon gas mixture consisting primarily of methane, but commonly including varying amounts of other higher alkanes, and sometimes a small percentage of carbon dioxide, nitrogen, hydrogen sulfide, or helium.

It is formed when layers of decomposing plant and animal matter are exposed to intense heat and pressure under the surface of the Earth over millions of years. The energy that the plants originally obtained from the sun is stored in the form of chemical bonds in the gas

for heating, cooking, and electricity generation. It is also used as a fuel for vehicles and as a chemical feedstock in the manufacture of plastics and other commercially important organic chemicals.

what gives bases their properties?

Answers

Bases are iconic compounds that produce negative hydroxide ions (OH-) when dissolved in water. Bases taste bitter, feel slippery, and conduct electricity when dissolved in water.... Bases turn red litmus paper blue. The strength of bases is measured on the pH scale.

Haley has been having difficulty breathing. She is having difficulty with the gas exchange in the respiratory system. Which organ is being affected?

Answers

Answer:

Lungs.

Explanation:

This is because the lungs are respiratory organs in the body that are located at the either side of the thorax or chest. These are organs that are incharge of exchange of gases. The air is breathe in through the trachea i.e oxygen is inhaled and carbondioxide which is the waste product is exhaled. Gas exchange take place in the lungs.

what is molarity ? also write its formula ?​

Answers

Answer:

Definition:

Molarity of a given solution is defined as the total number of moles of solute per litre of solution. The molality of a solution is dependent on the changes in physical properties of the system such as pressure and temperature as unlike mass, the volume of the system changes with the change in physical conditions of the system. Molarity is represented by M, which is termed as molar. One molar is the molarity of a solution where one gram of solute is dissolved in a litre of solution. As we know, in a solution, the solvent and solute blend to form a solution, hence, the total volume of the solution is taken.

Formula :

[tex]m \: = \frac{n}{v} [/tex]

Where,

m = molar concentration

n = moles of solute

v = litres of solution.

What is the empirical formula for a compound that has 1.5 moles of copper and 0.5 moles of phosphorus?

Answers

Answer:

[tex]Cu_{3}P[/tex]

Explanation:

usually, the first step is to calculate the moles but since that is already given in the question we can move onto the next step

least molar ratio:

Cu =  [tex]\frac{1.5}{0.5}[/tex] = 3

P = [tex]\frac{0.5}{0.5}[/tex] = 1

thus, empirical formula = [tex]Cu_{3}P[/tex]

The empirical formula for a compound that has 1.5 moles of copper and 0.5 moles of phosphorus is Cu₃P.

What is the empirical formula?

Empirical formula of any compound gives idea about the number of constituents particles present in that compound by mentioning the ration.

In the question, given that:

Moles of copper = 1.5 moles

Moles of phophorous = 0.5 moles

Now we divide the given moles by the smallest number to get the ration number as follow:
Cu  :  P

1.5/0.5  :  0.5/0.5

3  :  1

Hence, required empirical formula is Cu₃P.

To know more about empirical formula, visit the below link:

https://brainly.com/question/1603500

How can sound waves be used to put out fire

Answers

The acoustic extinguisher works by using sound waves—a type of pressure wave—to push oxygen away from the source of a flame and spread it over a larger surface area. These actions break the fire combustion triangle made up of heat, fuel, and oxygen, the three elements required for a fire to burn.
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Joni plays a scale on her clarinet. As she plays from low notes to high notes, what happens to the sound waves that the clarinet creates? 13. A sales lady is paid commission at the rate of 3% on all goods she sells. Duringone month, she sold 12 television at sh. 15,500 each, 8 D.V.D player at sh. 5,650and 4 refrigerators at sh. 21,700 each. Calculate the total commission she earnedin that month. Devons tennis coach says that 72% of Devons serves are good serves. Devon thinks he has a higher proportion of good serves. To test this, 50 of his serves are randomly selected and 42 of them are good. To determine if these data provide convincing evidence that the proportion of Devons serves that are good is greater than 72%, 100 trials of a simulation are conducted. Devons hypotheses are: H0: p = 72% and Ha: p > 72%, where p = the true proportion of Devons serves that are good. Based on the results of the simulation, the estimated P-value is 0.06. Using Alpha= 0.10, what conclusion should Devon reach?Group of answer choicesBecause the P-value of 0.06 < Alpha, Devon should reject H0. There is convincing evidence that the proportion of serves that are good is greater than 72%.Because the P-value of 0.06 < Alpha, Devon should fail to reject Ha. There is convincing evidence that the proportion of serves that are good is greater than 72%.Because the P-value of 0.06 < Alpha, Devon should fail to reject Ha. There is not convincing evidence that the proportion of serves that are good is greater than 72%.Because the P-value of 0.06 < Alpha, Devon should reject H0. There is not convincing evidence that the proportion of serves that are good is greater than 72%. (07.01, 07.02 LC) Factor the greatest common factor: 5k2 + 20k 30. 1(5k2 20k + 30) 5(k2 4k + 6) 5k(k2 4k + 6) 5(k2 + 4k 6) Forest kindergartens have been popular in Europe for decadesGermany, for instance, has over 1,000 such schoolsbut only a handful currently exist in the United States. two features of the play that are different from the story? Fares has a container filled with 540 grams of tea leaves. Each morning, he uses 6 grams to make a cup of tea.Write an expression to represent the grams of tea leaves remaining after x days. How many grams of tea leaves will remain after 17 days? Show your work. what was the effect of Lincolns declaring material law in Maryland Which statement below is an accurate claim that can be made based on the lizard table?A The number of lizards always stays the same.B The lizard population shifts from being mostly brown to being mostly red. The lizard population get more diverse as more generations go by.D The lizard population shifts from being mostly brown to being most black.!! 2a +8= 16Ill give brainey for right answer which scale is most useful when writing expository text about historical events 1. Marie-Hlne et papa adorent le th (prendre)2. Tu adores le chocolat chaud. (boire)3. Vous aimez bien le jus de pomme. (prendre4. Mes neces aiment la limonade (boire)5. Tu aimes es boissons gazeuses prendre6. Vous acoret le caf. (boire) Vhat is the domain of the function y = In {-x+3/2} plz tell answer for 33 pnts but dont scam Explain the process of evolution through isolationthat results in speciation. Find the volume of the figure. A) 288 cm^3 B) 480 cm^3 C) 544 cm^3 D) 640 cm^3 How do the two points of view differ from each other?Maritole says that, although the women are vocal, themen agree to accept the removal, while Knobowteesays that the men want to fight but the women cautionthem.O Maritole says that the women keep their silence,while Knobowtee says that the women are starting torebel and talk of fighting back.Maritole says that the men are upset about how thewomen are treated, while Knobowtee thinks that thewomen are upset about how the men are treated.O Maritole and Knobowtee each tell a different story, buttheir ideas about their removal are essentially thesame. I'm failing.. please help.. Parallel plots are _____.two plots that run simultaneously, but are completely unconnected, never crossinga series of stories told episodically, in small chunkstwo or more storylines that are woven together and linked by a shared character or themestories about one character who moves from location to location I chose this theme because (Why is it important to the novel? What is the author saying about this theme? What makes it interesting? How does it relate to me or the world?) about Indian Horse Sauls