Considering the Hess's Law, the enthalpy change for the reaction is 790 kJ/mol.
Hess's Law indicates that the enthalpy change in a chemical reaction is the sum of the ∆H of each stage of the reaction will give us a value equal to the ∆H of the reaction when it occurs in a single stage.
In this case you want to calculate the enthalpy change of:
C(s) + 2 SrO(s) → CO₂ (g) + 2 Sr(s)
You know the following reactions, with their corresponding enthalpies:
Equation 1: 2 Sr (s) + O₂ (g) → 2 SrO (s) ∆H° = -1184 kJ/mol
Equation 2: CO₂ (g) → C (s) + O₂ (g) ∆H° = 394 kJ/mol
First stepIn this case, first, to obtain the enthalpy of the desired chemical reaction you need 1 mole of C (s) on reactant side and it is present in second equation. But since this equation has 1 mole of C (s) on the product side, it is necessary to locate this on the reactant side (invert the reaction). And when an equation is inverted, the sign of ΔH also changes.
Second stepNow, 2 moles of SrO (s) must be a reactant and is present in the first equation. Since this equation has 2 moles of Sr0 (s) on the product side, it is necessary to locate the O on the reactant side (invert the reaction) and the sign of ΔH changes.
SummaryIn summary, you know that two equations with their corresponding enthalpies are:
Equation 1: 2 SrO (s) → 2 Sr (s) + O₂ (g) ∆H° = 1184 kJ/mol
Equation 2: C (s) + O₂ (g) → CO₂ (g) ∆H° = -394 kJ/mol
Adding or canceling the reactants and products as appropriate, and adding the enthalpies algebraically, you obtain:
C(s) + 2 SrO(s) → CO₂ (g) + 2 Sr(s) ΔH= 790 kJ/mol
Finally, the enthalpy change for the reaction is 790 kJ/mol.
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Answer:
True
Explanation:
Answer:
True
Explanation:
As on Edu 2022
What does ms. Willow mean by the note she wrote in jerome's card?.
Answer:
can you elaborate???
Explanation:
Answer:
If you would please attach the note too so we can answer I'd love to help.
Explanation:
Anthony would like to have his brokerage firm handle more of his financial needs because he has been pleased with the service provided when he bought and sold stocks and bonds. If he explores the services offered by such firms in more depth, he will find that.
There are firms that handles the financials for people. If he explores the services offered by such firms in more depth, he will find that:
The brokerage firms are becoming serious competitors for banks and other depository institutions by offering high-yield combination savings and checking accounts and money market accounts, as well as certain types of loans.Brokerage firms often helps individuals or firms in providing some key financial services. A full-service brokerage firm is known to be a brokerage firm that gives a range of financial services and also to gives room for one to buy and sell securities.
They help customers with financial planning services as well as consulting services and also provide trust services and wealth management services.
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Anthony would like to have his brokerage firm handle more of his financial needs because he has been pleased with the service provided when he bought and sold stocks and bonds. If he explores the services offered by such firms in more depth, he will find that:
federal laws prohibit brokerage firms from competing with banks, savings and loan associations, and credit unions.
although brokerage firms can offer some banking services, they typically are less efficient at providing them than banks, because they specialize in buying and selling securities.
brokerage firms are becoming serious competitors for banks and other depository institutions by offering high-yield combination savings and checking accounts and money market accounts, as well as certain types of loans.
although brokerage firms offer attractive banking services, federal law prohibits individual investors from holding both a checking account and a securities account with the same firm.
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What are three advantages of digital x-rays over film.
Answer:
Digital x-rays require less time, reduce radiation, and are cheaper.
:)
What mass of glucose (C6H12O6) should be dissolved in 12. 0 kg of water to obtain a solution with a freezing point of -5. 8 ∘C?.
Answer:
6.7 kg
Explanation:
(0) - (-5.8)= 5.8ºC
5.8 / 1.86 = 3.12 m C6 H12 O6
The molar mass of C6 H12 O6 is: 180.156 g/mol
3.12 * 12 kg * 180.156 g/mol = 6,745.041 g = 6.7 kg.
The mass of glucose solute dissolved in the solution is 6.739 Kg.
Recall that;
ΔT = K m i
ΔT = Freezing point depression
K =Freezing point depression constant = 1.86°C/mol
m = molality of the solution
i = Van't Hoff factor = 1 (molecular solution)
We have to find the freezing point depression from;
Freezing point depression = Freezing point of pure solvent - Freezing point of solution
Freezing point of pure water = 0°C
Freezing point of solution = -5. 8 ∘C
Freezing point depression = 0°C - (-5. 8 ∘C) = 5. 8 ∘C
Now;
m = ΔT/K i
m = 5. 8 ∘C/ 1.86°C/mol × 1
m = 3.12 m
But molality = number of moles of solute/mass of solvent in Kg
Molar mass of solute = 180 g/mol
Let the mass of solute be m
3.12 = m/180/12
3.12 = m/180 × 12
m = 3.12 × 180 × 12
m = 6739 g or 6.739 Kg
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Can one model demonstrate all outcomes of mitosis?(1 point).
Answer:
No, because some organisms are not diploid and have more than two sets of chromosomes
Explanation:
No, because some organisms are not diploid and have more than two sets of chromosomes.
What is mitosis?A cell prepares for cell division by replicating its chromosomes, segregating them, and creating two identical nuclei during the mitotic phase. The cell's contents are often evenly divided into two daughter cells with identical genomes after mitosis.
A cell copies each chromosome during mitosis and distributes one copy to each of its two daughter cells. With regard to our example of an instruction manual, it is crucial that each person receive a duplicate of each page.
Mitosis follows the same pattern. Each chromosome must be delivered to each of our cells exactly once, without any errors, or the cells may have problems carrying out the genetic instructions.
Therefore, No, because some organisms are not diploid and have more than two sets of chromosomes.
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Brea and colin do business as dig excavators. In acting on the firm’s behalf, brea makes an honest error in underestimating the cost of a certain project. In this situation, to her firm, brea is liable for a breach of the duty of.
People often breach duty as a result of some factors. In this situation, to her firm, Brea is liable for one of the choices of breach of the duty.
There are times, the court will say that a breach of duty of care is due to the existence of certain factors. When an individual is injured, the defendant is said to have breached the duty of care.
Breach of duty often takes place when an individual's conduct fails to meet an applicable standard of care.
As the error was due to a honest mistake, she will be ask to make appropriate corrections.
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Brea and Colin do business as Dig Excavators. In acting on the firm's behalf, Brea makes an honest error in underestimating the cost of a certain project. In this situation, to her firm, Brea is liable for a breach of the duty of
Loyalty.
accounting
care.
none of the choices.
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Which best describes the first law of thermodynamics as compared to the second law of thermodynamics? The first law describes how thermal energy is conserved but not the direction it moves. The first law describes the direction thermal energy moves but not how it is conserved. The first law describes how thermal energy can be created but not how it can be destroyed. The first law describes how thermal energy can be destroyed but not how it can be created.
The statement which best describes the difference between the first law of thermodynamics in comparison with the second law of thermodynamics is that: A. The first law describes how thermal energy is conserved but not the direction it moves.
The First Law of Thermodynamics states that energy can neither be created nor destroyed but it can only be transformed (converted) from one form to another such as potential energy to kinetic energy. Thus, thermal energy is always conserved according to the First Law of Thermodynamics.
On the other hand, the Second Law of Thermodynamics states that the entropy (disorderliness) of an isolated system always increases and can never be decreased. Thus, the direction of an energy is described by the Second Law of Thermodynamics.
In conclusion, the difference between the First Law of Thermodynamics in comparison with the Second Law of Thermodynamics is that the first law describes how thermal energy is conserved but not the direction in which thermal energy moves.
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Answer:
A is the answer
Explanation:
This is for people who don't like reading long answers :)
~Hope it helps!
Read the underlined sentence. Who or what does roosevelt blame for making life insecure?.
Answer: B. Industrialization
Explanation:
Answer:
Correct to person on top
Explanation:
:)
In the interior of the earth can be classified as primordial and radiogenic heat brainly.
The Core is in the interior of the earth can be classified as primordial and radiogenic heat
Which of the following is not a characteristic of all plants?.
Payton collected data to show the relationship between the number of hours he practices and the number of errors he makes when playing a new piece of music. The table shows his data. A 2-row table with 9 columns. The first row is labeled number of hours with entries 1, 2, 3, 4, 5, 6, 7, 8. The second row is labeled number of errors with entries 36, 34, 30, 31, 23, 16, 11, 5. Which is the approximate slope of the line of best fit for the data? –5. 5 –4. 5 –2. 0 –1. 0.
Answer:
-4.5
Explanation:
The product of a number and 2 less than the number is 15. Find the number.
Which method of choosing teams would be most hurtful to lower skilled players? A. Having team captains pick one player at a time B. Having people count off C. Having people team up according to birthdays D. Having people draw numbers.
Answer:
The answer has to be A
Explanation:
Cause that has to down grade one's skill
Answer:
Which method of choosing teams would be most hurtful to lower skilled players?
A. Having team captains pick one player at a time <<<------ CorrectB. Having people count off
C. Having people team up according to birthdays
D. Having people draw numbers.
Explanation:
Edge 2022 100% on unit test
Which statements describe characteristics of allegory? select three options.
Answer:
THERR ARE 56 IN ONE MICK
Explanation:
Which phrase best describes the vapor point of a substance?.
The phrase which best describes the vapor point of a substance is: the temperature at which additional heat energy causes the substance to change from a liquid to a gas.
A substance can be defined as a particular kind of matter that has uniform or definite properties.
In Science, there are two (2) main types of substance and these include:
An inorganic substanceAn organic substanceThe vapor vapor point of a substance refers to the temperature at which an additional quantity of heat energy causes a particular substance to be transformed (change) from a liquid to a gas or vapor.
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A samoan handicraft company is expanding its market into australia and new zealand. The company’s director of marketing is researching the two additional markets for this expansion. She is comparing various cultural aspects of the two countries. Which areas of culture should she consider when studying the countries for changes in the marketing mix?.
Culture is part of our everyday life. The areas of culture that should be consider when studying the countries for changes in the marketing mix are;
Geography, income bracket, gender, age Time and punctuality, customs and taboos, religious beliefs and celebrations, values.
Samoa is known to have different cultures when compared to other countries. The director in charge of marketing in the firm should research the geography of New Zealand and Australia because it is different from Samoan geography.
He should conduct a well detailed demographic analysis such as income bracket, gender, and age so that they can know more about possible customers.
The culture and tradition of New Zealand and Australia should be studied so that their business can have a smooth running overtime.
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Bernie is an aspiring video game developer. Learning which of the following software would benefit him the most?.
Since Bernie aspires to become a video game developer, learning a 3-D animation software would benefit him the most: C. 3-D animation software.
A software developer refers to a creative individual that develops a concept and writes a set of executable instructions (codes), in order to create a software applications (programs) that proffers a solution to a particular problem by applying various engineering principles.
In Computer programming, software applications (programs) are typically categorized into the following groups:
Computer-aided design softwareSampling softwareSystem software3-D animation softwareA 3-D animation software is a graphic design software that is designed and developed for rendering animated or graphic images in three (3) dimensions.
Hence, a software developer that is interested in becoming a video game developer should learn how to use a 3-D animation software effectively and efficiently.
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Your question is lacking the necessary answer options, so I will be adding them here:
A) Computer-aided design software
B) Sampling software
C) 3-D animation software
D) System software
What did it mean when foreign diplomats "kowtowed" to the Chinese emperor or his representatives? It meant that diplomats relinquished all their rights in the Forbidden City. It meant that diplomats recognized the superiority of the Chinese emperor. It meant that foreign missionaries could no longer visit China. It meant that diplomats had full trading rights equal to those of China.
Kowtowing is simply known to be the a form of paying respect. kowtowed to the Chinese emperor or his representatives simply meant that meant that diplomats recognized the superiority of the Chinese emperor.
Kowtow, is commonly said pronounced as kotow.
It is very common to traditional China as a form of respect or reverence. It is known as an act of supplication made by an inferior to his superior through the kneeling and knocking of head to the floor.It is a traditional forms of reverence. In many scenarios, the standing bow has displaced the kowtow.
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Answer:
B edge 2021
Explanation:
Which monarch was the target of the Gunpowder Plot? A. Elizabeth I B. James I C. Charles I D. Charles II.
Answer: The answer is B
Explanation: James I
The monarch who was the target of the gunpowder was James I.
James I is the monarch which was the target of the Gunpowder Plot. Hence option B is correct.
What is monarch?Monarch is defined as a sovereign ruler is someone who has control over a kingdom or empire. A monarch with legal standing. In the United Kingdom, monarchy is the oldest system of government. A king or queen is the head of state in a monarchy. Constitutional monarchies include the British Monarchy. Monarchy, a form of government in which one person has full power or authority.
The Gunpowder Plot of 1605, in which Guy Fawkes and other Catholic conspirators attempted to blow up Parliament and assassinate James I of England, is commemorated on 5 November in Britain on Guy Fawkes Day.
Thus, James I is the monarch which was the target of the Gunpowder Plot. Hence option B is correct.
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Cierto o falso: Cuando utilices el pretérito, estás hablando de lo que pasó.
Answer:
True
Explanation:
The auction price of the game system is higher than the retail price because. If you waited six months to buy the phone, you would have saved.
Answer:
Demand is higher than supply
$200
Explanation: I guessed and got it right
Answer:
The auction price of the game system is higher than the retail price because
✔ demand is higher than supply
.
If you waited six months to buy the phone, you would have saved
✔ $200
.
Explanation:
How many ways can we award first and second place to 5 competitors.
Answer:
There are 5 choices of prize for the first person, 4 choices for the second, and so on. The number of ways the prizes can be distributed will be 5! = 5 · 4 · 3 · 2 · 1 = 120 ways.
Explanation:
I know you're somewhere out there
Somewhere far away
I want you back, I want you back
My neighbors think I'm crazy
But they don't understand
You're all I had, you're all I had
At night, when the stars light up my room
I sit by myself
Talking to the moon
Trying to get to you
In hopes you're on the other side talking to me too
Or am I a fool who sits alone talking to the moon?
Oh-oh
I'm feeling like I'm famous, the talk of the town
They say I've gone mad
Yeah, I've gone mad
But they don't know what I know
'Cause when the sun goes down, someone's talking back
Yeah, they're talking back, oh
At night, when the stars light up my room
I sit by myself
Talking to the moon
Trying to get to you
In hopes you're on the other side talking to me too
Or am I a fool who sits alone talking to the moon?
Ah-ah, ah-ah, ah-ah
Do you ever hear me calling?
(Ah-ah, ah-ah, ah-ah) oh-oh-oh, oh-oh-oh
'Cause every night, I'm talking to the moon
Still trying to get to you
In hopes you're on the other side talking to me too
Or am I a fool who sits alone talking to the moon?
Oh-oh
I know you're somewhere out there
Somewhere far away
Answer: The song is Talking to the Moon by Bruno Mars.
Answer:
D
Explanation:
what is the question?
For which pairs of functions is (f circle g) (x)?.
Answer:
Option B is correct. The required composite function where f(g(x)) is x is f (x) = StartFraction 2 Over x EndFraction and g (x) = StartFraction 2 Over x EndFraction
Explanation:
Use the drop-down menu to complete each statement. US national security policy seeks to. Congress has the power to. The US government has to support national security.
Answer
1. protect us citizens
2. declare war
3. signed treaties
Explanation: your welcome
US national security policy seeks to protect us citizens.
Congress has the power to declare warThe US government has to support national security - Signed treatiesWhat does national security do?National security is known to be the body that is responsible for protection of its citizens, economy, and any other kinds of set up body.
Conclusively, It is known to be a body that is set up by government and handle issues relating to economic security, political security, and others and as such, US national security policy seeks to protect us citizens.
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Choose the best Spanish word to complete the sentence. ________ las dos y veinte. Es Son Está Están.
Answer:son
Explanation:
Answer: I think it's "son"
Explanation: I just do
Hydrogen and nitrogen combine to form ammonia. When nitrogen and hydrogen bond, nitrogen pulls the electrons from hydrogen toward itself. Which statement about the reactants is correct?.
Answer:
Nitrogen is more electronegative, so it pulls the electrons in the bond closer to itself
Explanation:
no statements given
Which statement describes the graph of this polynomial function? f (x) = x superscript 5 baseline minus 6 x superscript 4 baseline + 9 x cubed.
Answer:
1
Explanation:
Answer:
A on edg 2022
Explanation:
got it right
To what extent were the goals of reconstruction regarding african-americans achieved by 1900?.
Answer: The goals were
ensure citizenship and civil liberties , Provide economic , and Provide education opportunities for former slaves
Explanation:civil right act in 1866