Hydrogen reacts with chlorine to form hydrogen chloride (HCl (g), Delta. Hf = –92. 3 kJ/mol) according to the reaction below. Upper H subscript 2 (g) plus upper C l subscript 2 (g) right arrow 2 upper H upper C l (g). Which statement is correct? Use Delta H r x n equals the sum of delta H f of all the products minus the sum of delta H f of all the reactants. The enthalpy of the reaction is –184. 6 kJ, and the reaction is exothermic. The enthalpy of the reaction is –184. 6 kJ, and the reaction is endothermic. The enthalpy of the reaction is 184. 6 kJ, and the reaction is endothermic. The enthalpy of the reaction is 184. 6 kJ, and the reaction is exothermic.

Answers

Answer 1

Answer:

a

Explanation:

aaa

Answer 2

The statement which is correct about the reaction of hydrogen with chlorine is used Delta H r x n equals the sum of delta H f of all the products minus the sum of delta H f of all the reactants. The correct option is A.

What is a chemical reaction?

A chemical reaction is a transformation of one or more chemicals (the reactants) into one or more distinct compounds (the products). Chemical elements or chemical compounds make up substances.

When a chemical reaction occurs, the reactance responds by rupturing the bonds in the energy and forming new compounds. Breaking chemical bonds between reactant molecules (particles) and creating new bonds between atoms in product particles are two aspects of chemical reactions (molecules).

Therefore, the correct option is A, Use Delta H r x n equals the sum of delta H f of all the products minus the sum of delta H f of all the reactants.

To learn more about chemical reaction, refer to the link:

https://brainly.com/question/29762834

#SPJ5


Related Questions

The distribution of number of hours worked by volunteers last year at a large hospital is approximately normal with mean 80 and standard deviation 7. Volunteers in the top 20 percent of hours worked will receive a certificate of merit. If a volunteer from last year is selected at random, which of the following is closest to the probability that the volunteer selected will receive a certificate of merit given that the number of hours the volunteer worked is less than 90 ?.

Answers

Explanation:

Using the normal distribution, it is found that the probability that the volunteer selected will receive a certificate of merit given that the  number of hours the volunteer worked is less than 90 is closest to:

B 0.123

In a normal distribution with mean \muμ and standard deviation \sigmaσ , the z-score of a measure X is given by:

Z = \frac{X - \mu}{\sigma}Z=σX−μ

It measures how many standard deviations the measure is from the mean.  

After finding the z-score, we look at the z-score table and find the p-value associated with this z-score, which is the percentile of X.

In this problem:

The mean is of 80, hence \mu = 80μ=80 .

The standard deviation is of 7, hence \sigma = 7σ=7 .

The minimum value is the 80th percentile, which means that it is X_mXm when Z has a p-value of 0.8.

The probability that the volunteer selected will receive a certificate of merit given that the number of hours the volunteer worked is less than 90 is P(X_m < X < 90)P(Xm<X<90) , which is the p-value of Z when X = 90 subtracted by the p-value of Z when X = X_mX=Xm , hence the p-value of Z when X = 90 subtracted by 0.8.

Z = \frac{X - \mu}{\sigma}Z=σX−μ

Z = \frac{90 - 80}{7}Z=790−80

Z = 1.43Z=1.43

Z = 1.43Z=1.43 has a p-value of 0.9236.

0.9236 - 0.8 = 0.1236, hence closest to 0.123, option B.

Using the normal distribution, it is found that the probability that the volunteer selected will receive a certificate of merit given that the  number of hours the volunteer worked is less than 90 is closest to:

Letter B

In a normal distribution with mean and standard deviation , the z-score of a measure X is given by:

[tex]Z = \frac{X - \mu}{\sigma}\\Z=\sigma X - \mu[/tex]

It measures how many standard deviations the measure is from the mean. After finding the z-score, we look at the z-score table and find the p-value associated with this z-score, which is the percentile of X. In this problem:

The mean is of 80, hence [tex]\mu = 80[/tex]. The standard deviation is of 7, hence [tex]\sigma = 7[/tex]. The minimum value is the 80th percentile, which means that it is [tex]X_m[/tex] when Z has a p-value of 0.8.

The probability that the volunteer selected will receive a certificate of merit given that the number of hours the volunteer worked is less than 90, which is the p-value of Z when X = 90 subtracted by the p-value of Z when X = X_mX=Xm , hence the p-value of Z when X = 90 subtracted by 0.8.

[tex]Z = \frac{X - \mu}{\sigma}\\Z=\sigma X - \mu\\Z = \frac{90 - 80}{7}\\Z=790 - 80\\Z = 1.43Z=1.43[/tex]

Has a p-value of 0.9236.

[tex]0.9236 - 0.8 = 0.1236[/tex]

Hence closest to 0.123.

See more about probability at brainly.com/question/795909

Marianna is working on improving her communication skills. To be a good listener, she should.

Answers

Answer:

I don't know the answer choices, however if one wants to be a good listener they should 1. Have a clear head space, 2. Always be focused on the one speaking, 3. ask questions.

Explanation:

What is the acceleration of a 32 kg object if a 6. 75 n force is applied to it? 0. 21 m/s2 4. 74 m/s2 21. 09 m/s2 216. 00 m/s2.

Answers

The acceleration of the object is 4.74 m/s²

From the question given above, the following data were obtained:

Mass (m) = 32 Kg

Force (F) = 6.75 N

Acceleration (a) =?

The acceleration of the object can be obtained as follow:

[tex]a = \frac{f}{m} \\ \\ a \: = \frac{32}{6.75} \\ \\ [/tex]

a = 4.74 m/s²

Therefore, the acceleration of the object is 4.74 m/s²

Learn more: https://brainly.com/question/20557294

Which comparison between events in the passage would best support a claim that a significant theme of the passage is fulfillment?.

Answers

The comparison that illustrates the theme is Theodora's isolation from her family and her reading of the publisher's response regarding her manuscript.

The theme of a story simply means the central idea that's conveyed in a story. It illustrates what the author wants the readers to know in the story.

The comparison between events in the passage support a claim that a significant theme of the passage is fulfillment. This was illustrated as Theodora's isolation from her family and her reading of the publisher's response regarding her manuscript.

Learn more about themes on:

https://brainly.com/question/15568278

Which group of people was one o fthe first to spread hte idea of worshipping only one god?.

Answers

Answer:

The first people to express the idea that there is only one God were the Jews, and then later on Christians (because Jesus Christ brought Christianity.)

Explanation:

I hope this helps! :D

Which provides evidence of universe expansion that supports the big bang theory.

Answers

Answer:

Hubble's discovery in the 1920s of a relationship between a galaxy's distance from Earth and its speed

The link between a galaxy's speed and distance from Earth was discovered by Hubble in the 1920s.

What is Big Bang theory?

Big Bang theory is defined as the physical theory that explains how the universe expanded from an initial state of high density and temperature. The early evolution of the universe is explained by the Big Bang theory. In accordance with this idea, the Universe began in a very small, very hot, and very dense state. It has since grown, gotten less dense, and gotten cooler.

The Big Bang theory is backed up by two significant scientific discoveries: the link between a galaxy's speed and distance from Earth, discovered by Hubble in the 1920s. In the 1960s, the cosmic microwave background radiation was discovered.

Thus, the link between a galaxy's speed and distance from Earth was discovered by Hubble in the 1920s.

To learn more about Big Bang theory, refer to the link below:

https://brainly.com/question/1160650

#SPJ5

After earning $50 million in net income, monroe millwork distributed $15 million in dividends to its stockholders. Monroe’s board of directors decided to invest the remaining $35 million back into the business. This $35 million reinvestment of profits represents.

Answers

Based on the information given, it can be deduced that the reinvestment of profit which is $35 million is known as the retained earnings.

Retained earnings simply refer to part of the cumulative profit that is earned by a company which is saved for future use.

Retained earnings are typically earned from the net income at the end of a particular period. In this case, the company had a net income of $50 million and distributed $15 million as a dividend.

Therefore, the remaining $35 million is the retained earnings.

Learn more about retained earnings on:

https://brainly.com/question/20051506

How can buddhism affect change on powerful countries that use war.

Answers

Buddhism is a religion that seeks to avoid conflict and harm, so other countries can learn from this.

Quis:

*Indonesian assignment*

Find the meanings of the following words using the Indonesian Dictionary
1. Effectiveness
2. Instrument
3. Generator
4. Distribution
5. Consumption
Work in a notebook or lat


pls help me bro :-)


those who are lazy must report :) Ok ^_^​

Answers

the effect to produce something desired a implement or a tool a machine that converts mechanical energy into electricity to share something among a number of people using up a resource is known as consumption

How did she get from the stage to the balcony crossword.

Answers

Answer:

she used stairs

Explanation:

It should be noted that the word that fits the scenario is stairs.

A crossword clue simply means a hint that is given to a  player of a crossword puzzle where the person has to find the missing pieces of the game.

The question is simply about how she got from the stage to the balcony crossword. Therefore, the correct option will be stairs which is six letters.

Learn more about crosswords on:

https://brainly.com/question/25739737

During his party in chapter 3 which is an example of the gossip about gatsby.

Answers

Answer: During his party in chapter 3, one of the gossip about Gatsby is that he killed a man once

Explanation:

Answer:

that he attended oxford

Explanation:

Which statement is accurate about Native Americans and the American Revolutionary War?.

Answers

Answer:

regardless of which side they chose, native americans would lose land due to the outcome of the war

Explanation:

k12 yes? good luck, hope this helps

Which of the following best describes why ddt is classified as a persistent organic pollutant.

Answers

The reasons why DDT is classified as a persistent organic pollutant are;

DDT can be used to control diseases, such as malaria and typhus, that are spread by insects.DDT is detected in food worldwide and the general human population is most commonly exposed to the toxin through food.

Persistent Organic Pollutants  can be regarded as toxic substances which are made up of organic chemical compounds.

These are industrial chemicals such as;

PCBs pesticides like DDT.

DDT is classified as a persistent organic pollutant because of it's usefulness in control diseases and it is been found in food stuff across the globe.

Learn more about DDT at;

https://brainly.com/question/14154063

For the lunch special at a high school cafeteria, students can get either salad or french fries as a side order. The following table shows the number of each side order for the lunch specials purchased on one day, classified by the grade of the student.

Answers

The probability that the student that's selected will be in grade 10 given that the student ordered French fries as the side will be 71/248.

From the information given, the number of students that are in grade 10 is 105. Out of all the students, 34 had salad and 71 had French fries. The total students in the school that are French fries was 248.

Therefore, the probability that the student that's selected will be in grade 10 given that the student ordered French fries as the side will be calculated thus:

= Number of students who French fries in grade 10 / Total number of people that had French fries

= 71/248

In conclusion, the correct option is 71/248.

Read related link on:

https://brainly.com/question/25678373

Promoters and enhancers are dna sequences both bound directly by ____________.

Answers

Answer:

Transcription factors

An angle measures 4. 3 radians. To the nearest degree, what is the measure of the angle? degrees.

Answers

Im pretty sure this is it-

The measure of your angle is 4.3 radians, according to your statement. This is less than a full circle, which is 2π radians ≈ 6.28 radians.

So, let's look at 4.3/6.28, which turns out to be equal to 0.685; i.e., it is equal to 0.685 of a full circle of 360 degrees; i.e., it is equal to 246.6 degrees. Thus your angle lies in the third quadrant of the (x,y) plane.

Choose the solution(s) of the following system of equations: x2 + y2 = 6 x2 – y = 6 no solution mr001-1. Jpg mr001-2. Jpg mr001-3. Jpg infinitely many solutions mr001-4. Jpg mr001-5. Jpg mr001-6. Jpg.

Answers

The solution to the system of equations are -1 and ±√5

Given the systems of equations;

[tex]x^2 + y^2 = 6\\ x^2 - y = 6[/tex]

From equation 2;

[tex]x^2 = 6 + y[/tex]..................................... 3

Substitute equation 3 into 1 to have:

[tex]6+y+y^2=6y^2+y=6-6\\y^2+y=0\\y^2=-y\\y = -1[/tex]

Substitute y = -1 into equation 3

[tex]x^2 = 6 + y\\x^2 = 6 + (-1)\\x^2 = 6 -1\\x^2=5\\x=\pm \sqrt{5}[/tex]

Hence the solution to the system of equations are -1 and ±√5

Learn more on systems of equation here: https://brainly.com/question/13729904

Answer:

its a,b,c, and f on edge which is -1/2,1/2,-i squareroot2, i square root 2

Explanation:

Write and answer the following in your answer sheet.

Answers

Context? Or attachment?

The discussion of the ""greatest of poets and philosophers"" in the third paragraph suggests that the author believes the audience of the speech will.

Answers

There a lot of great poets and philosophers in the world today. The author believes the audience of the speech will recognize an implicit reference to Shakespeare and agree about his importance.

There have been a lot of English literature. One of the greatest poet of all time is William Shakespeare.

He was known for his famous quote where He said that All the world, is a stage, and all the men and women merely players.

The author recognize the importance of Shakespeare and his impressive work of literature.

Learn more from

https://brainly.com/question/20078803

The square root of a number is between 8 and 9 which of these could be that number.

Answers

9

9 is a square root because when u multiply 3×3=9

Find the value of 6.

Answers

Answer:

B if your question is same as mine

Explanation:

the definition of ! ( factorial ) is

n! = n(n - 1)(n - 2) ........ × 3 × 2 × 1

6 = 6 × 5 × 4 × 3 × 2 × 1 = 720

BRAINLIEST

Mason bought 6 loaves of bread and 3 packages of cheese for a total of $27. The cost of a package of cheese is $1. 50 more than the cost of a one loaf of bread. What is the combined cost of one loaf of bread and one package of cheese?.

Answers

Answer:

Bitlog

Explanation:

iklog

A taxi service charges a flat fee of $1. 25 and $0. 75 per mile. If Henri has $14. 00, which of the following shows the number of miles he can afford to ride in the taxi? m less-than-or-equal-to 17 m greater-than-or-equal-to 17 m less-than-or-equal-to 20. 3 m greater-than-or-equal-to 20. 3.

Answers

Answer:

Its less than or equal to 17

Explanation:

Which President's domestic policy included putting down the Whiskey Rebellion? Question 7 options: Andrew Jackson George Washington James Madison John Adams

Answers

Answer:

George Washington  

Explanation:

A cell accumulated damage to the majority of its nucleic acids. Is in unlikely to.

Answers

Answer:

Normally if a cell has accumulated DNA damage, it is unlikely to pass the G2 check point.

Explanation:

The cell cycle is regulated at three checkpoints to ensure that the cells are ready to proceed through the process of division. At each of these checkpoints, the cell waits to receive signals on whether or not it has carried out the function that should have been completed at the previous stage. The three key check points of the cell cycle are: the cell restriction or growth check point, the DNA synthesis checkpoint and the mitosis or the metaphase checkpoint.

Which law would you use to simplify the expression mc006-1. Jpg? quotient of powers power of a quotient product of powers power of a product.

Answers

Answer:

Law of transparency

Explanation:

The law that will be used in simplifying the option is a3¹⁰/3⁴ is the quotient of powers. The correct option is a.

What is the quotient of powers?

According to the Quotient of Powers Property, exponents are subtracted from powers when they are divided by the same base, provided the base is not equal to 0. Using variables, nanb=n(ab) n a n b = n (a b) is defined.

It is quicker and simpler to subtract the bases than to write down the multiplications and cancel. The denominator times the derivative of the numerator minus the numerator times the derivative of the denominator, all divided by the square of the denominator, is how the Quotient Rule defines the derivative of a quotient.

[tex]\dfrac{x^a}{x^b} = x^{( a - b)}[/tex]

[tex]\dfrac{3^{10}}{3^4} = 3 ^ {( 10 - 4)}\\\\\dfrac{3^{10}}{3^4} = 3^6[/tex]

Therefore, the correct option is a, the quotient of powers.

To learn more about the quotient of powers, refer to the link:

https://brainly.com/question/27796160

#SPJ5

The question is incomplete. Your most probably complete question is given below:

The equation is:

3^10/3^4

are there other universes?

Answers

Answer:

no

Explanation:

Identify the outlier for the given data: 23, 34, 27, 7, 30, 26, 28, 31, 34.

Answers

Answer:

The outlier is 7.

Explanation:

Hope this helps you!

You get lost in extremely cold weather. You are unable to start a fire. Which of the following is the best way to survive?.

Answers

Answer:

go back in time and dont go anywhere cold

Explanation:

Which of the following statements about hybridization are true?.

Answers

The hybridised orbitals have different energies for each orbital.
Other Questions
how does the third party work What is the meaning of the statement ((30) =76? What is the slope of this line? a college student is saving money to buy a laptop. the student has $85 saved and saves $35 each week. The function a(t)=35t + 85 represents the amount of money the college student has saved for the laptop after t weeks. The student receives $50 as a birthday gift . If the function f(t) = a(t) +50 represents the total amount the student has saved , which best describes the transformation from a(t) to f(t)? help plz we this work I need help with this please Help Meee pls this is pasted due Which decade experienced a comeback for swing and bebop, but also turned toward inclusion of world music? Simplify. 5102221025 As soon as you realize that you are in danger, you feel your heart speed up. You feel very aware of your surroundings. Your whole body is preparing to run and fight for your life. Read the phrases that describe the body's response to sudden stress. Place the letter of the correct response to its corresponding system. One choice has 2 answers!____ Respiratory ____ Nervous____ muscular and skeletal ____ CirculatoryA) heart rate speeds upB) body moves to a safer placeC) senses become sharperD) stress hormones are transported around the bodyE) breathing is faster, lungs open up to take in more air Short paragraph about Junior Technical Assistant Brainests anser fast pls hi luvs! I have a question and it's very simple and you get points :) Just let me know if these are grammatically correct in Spanish. if not please correct and let me know my mistakes. Thank you :) Mi casa es marrn. Mi casa frente al parque. Mi casa tiene dos dormitorios, el bao, la cocina, y la sala.hay un cmodo cama y la azul lmpara en mi dormitorios. Yo tener barrer el piso y sacar la basura. thank you. What does the graph tell you about the concentration of salt inside the cell? There are many reasons to do applied research. The common theme is that every research project starts with a ____________ How many days you need to workout to notice a difference? perform the operation and simplify We do honestly have a little more (1) time in summer than we do in spring. We have some weekend getaways planned over the summer. A couple of fun things for the kid away from home. This blogging and social media thing has me wrangled into about a weeks worth of travel and meetings, and I wouldnt be surprised if something or things pops up soon. And for me personally I have more free time (and a great (2) less stress) than I did when I (3) in town. I go to work around 8a.m. most days on the farm. I used to be at work at 6:30a.m., and it (4) me 35 minutes to get there. When its not time to plant or harvest, we usually work a few (5) on Saturday morning and never on Sundays. And for those farmers that also have livestock? We used to raise hogs you know. Well those animals want to eat and be healthy.1. A. free B. spare C. open D. both A & B2. A. number B. amount C. deal D. of3. A. work B. worked C. had worked D. has worked4. A. got B. spent C. took D. cost5. A. days B. time C. seconds D. hours In Scene 1 of The Glass Menagerie, Tom tells the audience that the play is a memory of another time and introduces the other characters in the playhis mother, his sister, Jim, and his father.How does this information contribute to the structure of the play?It helps explain why there is music in the play even though the play is not a musical.It creates a sense that the play will not accurately depict what really happened.It serves as a flashback to when Toms father left the family and why he left.It sets the scene of what has already occurred and what will happen to the characters in the play. PLEASE HELP Identify which equations have one solution, infinitely many solutions, or no solution.