Consider the chemical equation. CuCl2 2NaNO3 Right arrow. Cu(NO3)2 2NaCl What is the percent yield of NaCl if 31.0 g of CuCl2 reacts with excess NaNO3 to produce 21.2 g of NaCl? Use Percent yield equals StartFraction actual yield over theoretical yield EndFraction times 100.. 49.7% 58.4% 63.6% 78.7%
Answer:
D. 78.7% on edge 2020
Explanation:
i got 100
The percent yield of NaCl is 78.7 %
CuCl₂ + 2NaNO₃ → Cu(NO₃)₂ + 2NaCl
How NaNO₃ is determined to be in excess?If the NaNO₃ is determined to be in excess, the limiting reagent is the chloride. We convert the mass to moles:
31 g . 1mol / 134.45g = 0.230 moles
Ratio is 1:2, so we can make a rule of three to determine the theoretical yield
1 mol of copper (II) chloride reacts to produce 2 moles of sodium chloride.
Then you can find out how much NaCl 31.0g of CuCl₂ should produce using stoichiometry. Divide 31.0g by the molar mass of CuCl₂ (134.446g/mol) to get 0.2306mol CuCl₂. Than multiply 0.2306mol CuCl₂ by 2 to get 0.4612mol NaCl.
Than multiply 0.4612mol by the molar mass of NaCl (58.45g/mol) to get 26.95g of NaCl.
that means that 100% yield would give you 26.95g of NaCl so to find percent yield divide 21.2 by 26.95 to get 0.7867 which is 78.7% yield
Then, 0.230 moles of CuCl₂ will react to produce (0.230 .2) /1 ) = 0.461 moles of NaCl → we convert the moles to mass → 0.461 mol . 58.45 g / 1mol = 26.9 g
To find percent yield we do → (Yield produced / Theoretical yield) . 100
(21.2 g / 26.9 g) . 100 = 78.7 %
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______________ is a printing process in which an image is photographed through a screen on to a sensitized printing plate that after development is etched. a. Daguerreotype c. Photogravure b. Cyanotype d. Digital imaging Please select the best answer from the choices provided A B C D
Answer:
c
Explanation:
Photogravure is a printing process in which an image is photographed through a screen on to a sensitized printing plate that after development is etched. Thus, option C is correct.
What are the different aspects of photography?There are many different aspects of the photography. Photogravure has the printing process in which the image has the photographed through the screen on to the sensitized printing plate that after development has etched. Photogravure has commonly described as an intaglio printmaking or photo-mechanical process.
It has been made up of the copper plate that has grained and it has then covered with a light-sensitive gelatin tissue that brings out a film positive, and then etched, leading to in the good quality that intaglio plate that can remade.It has the type of print process that has been often used to make high-quality reproductions of photographs in ink.
Therefore, Photogravure is a printing process in which an image is photographed through a screen on to a sensitized printing plate that after development is etched. Thus, option C is correct.
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A confounding variable can also be considered an extraneous variable. Please select the best answer from the choices provided T F
Answer: true
Explanation:
Which level of government is most local to a citizen? the state level the municipal level the federal level the county level
Municipal level government is most local to a citizen.
This is the governance level that is generally found in a city, town, or district. Universities, playgrounds, community water infrastructure, local police, highways, and parking are all within the jurisdiction of local municipalities.
The provincial governments give them power in certain areas.
So,
Option "B" is the correct answer to the following question.
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Answer:
Which level of government is most local to a citizen?
the state level the municipal level <<<correct the federal level the county levelExplanation:
I originally did #4 on my test. GOT IT WRONG; THE TEST SHOWED THAT #2 was actually correct.
EDGE 2021 OCT.
which of the following best describes a negative consequence of the amazon basin deforestation
The Amazon basin is the name given to the popular Brazil's Rain-forest which spans across many countries and covers about 35.5% of the South American continent.
The Rain-forest plays a major role in regulation of the world's oxygen and carbon cycles because its produces about 6% of world's oxygen and also act as carbon sink from the atmosphere.
The deforestation of the Amazon basin could have a great consequence for the world because production of oxygen from the forest will stop and concentration of carbon in the atmosphere will increase and likely to increase global warming.
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Based on what you have read, what type of tax is Robert paying? a tariff a sales tax an excise tax a corporate tax
Answer:
C- An excise tax
Explanation:
Correct on edge
Its C because I said so
among the functions of contemporary art which in your view is most significant
Let understand that Contemporary art means the serious of art which are produced by artists in this current or modern time
In Ancient times, painting and Sculpture was the major form of art that was embraced and widely practiced..Today, Contemporary art is more than painting or sculptures, its does encompasses architecture, poetry, music, literature, dance etc
Contemporary art provides the people the opportunities to reflect on what are important to them and the world at large.
In conclusion, the most significant function of this Art is its ability to provoke deep thoughts about any causes in the real world.
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What was the capital of the Ottoman Empire? Question 3 options: Istanbul Isfahan Persia Constantinople
Answer:
The answer to your question is Istanbul
where are presidential candidates formally nominated?
Answer:
A candidate for president of the United States who has been selected by the delegates of a political party at the party's national convention to be that party's official candidate for the presidency.
Explanation:
For each of the following passages, indicate which one: describes what the narrator knows from the past. describes what the narrator experiences in the story. is an inference made by the narrator. "I know not how it was – but, with the first glimpse of the building, a sense of insufferable gloom pervaded my spirit."
The question requires the indication of the sources of the narrator's perspective, which are as follows:
Passage 1 notes that the narrator expressed "a sense of insufferable gloom" to indicate that the narrator's perspective is obtained in the story.
The knowledge came to the narrator immediately after the building came into view. Observation is when the narrator gains perspective in the story.
Passage 2, where the narrator discusses his intimate friends, shows that the narrator obtains knowledge from the past.
Background information helps the narrator to know from the past.
The third passage shows that the narrator is making an inference. After observing the vault or tunnel, the narrator concludes that the design is conveying an idea.
An inference's basis is on some evidence. In addition, an inference can also be arrived at with reasoning based on observation and background information.
Thus, the narrator's inference is a conclusion arrived after observation or based on background information.
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Answer:
the first one is- B.
the second on is- A
the third one is-C
100%!!
Explanation:
yinka shonibare is not interested in constructions of race or identity in his work.
Yinka Shonibare is an artist interested in the construction of identity and race and projects these themes in his works (False).
Yinka Shonibare (1962) is a prominent English artist of Nigerian parents based in England. He stands out for being an artist who integrates social themes such as:
Cultural identityColonialismPostcolonialismGlobalizationRaceHis works are mainly sculpture, photography, and painting.
One of his most famous works is the one in which he made life-size headless human statues dressed in Ankara cloth. In this work, he makes a critique of colonialism and European and American imperialism that wants to take advantage of the resources of the African continent.
Note: This question is incomplete because the options are missing. Here are the options:
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which answer choice is a result of the lincoln-douglas debates?
what is the overall balanced equation for the precipitation reaction occurring between silver nitrate and calcium bromide?
The net ionic equation of the reaction between AgNO3 and CaBr is 2Ag^+(aq) + 2Br^-(aq) ------> 2AgBr(s)
The net ionic equation shows which ions underwent a change in the reaction. It omits the spectator ions. In order to obtain the net ionic equation, we must first write down the molecular equation as follows;
2AgNO3(aq) + CaBr2(aq) --------> 2AgBr(s) + Ca(NO3)2(aq)
Next, we have to obtain the complete ionic equation as follows;
2Ag^+(aq) + 2NO3^-(aq) + Ca^2+(aq) + 2Br^-(aq) ------> 2AgBr(s) + Ca^2+(aq) + 2NO3^-(aq)
Lastly, we put down the net ionic equation in which the spectator ions are omitted as follows;
2Ag^+(aq) + 2Br^-(aq) ------> 2AgBr(s)
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In the era of the Seven Years War and the French Revolution, European nations, such as France, faced many of the same issues as those faced by the colonies in the American Revolution. Which problem affected both nations? colonial rules government-mandated social classes taxation without representation tyrannical monarchies in power
The problem that affected both populations is the fact that they had tyrannical monarchies in power
It should be noted that the issue that was faced by European nations such as France was the fact that they had tyrannical monarchs.
They had leaders who had excess powers. Such a leader is unrestricted by law and rules the people unfairly. A tyrannical leader is also harsh as cruel.
The tyrannical monarchs made the people pay more taxes and also treated the people unfairly.
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Answer:tyrannical monarchies in power
Explanation: i got it right
Which type of burn is BEST described as having reddish skin, white border, and some pain? A. first-degree burn B. second-degree burn C. third-degree burn D. forth-degree burn Please select the best answer from the choices provided. A B C D
Answer:
The correct answer to this equation is A.
Explanation:
~Hope this helps :)
Second-degree burns also referred to as partial-thickness burns, are characterized by reddened skin with a white or pale border. Therefore option B is correct.
These burns affect both the outer layer of skin (epidermis) and a portion of the underlying layer (dermis).
The reddening of the skin is due to inflammation and increased blood flow, while the white or pale border results from the destruction of skin cells in the affected area.
Second-degree burns typically cause pain due to the involvement of nerve endings in the dermis. Blisters may also develop.
Unlike first-degree burns, which affect only the outermost layer of skin, second-degree burns involve deeper tissue layers, making them more severe and requiring appropriate medical attention for proper care and healing.
Therefore option B is correct.
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which statement is true about the gray matter brainly
a is the answer bro dude you crazy jk i use the app to
_________ people were used as indentured servants and/or slaves in the Caribbean. Question 12 options: Chinese Indian Native American All the above
Answer:
All of the above
Explanation:
A scientist finds a piece of rock in a crater. He analyzes the rock and realizes that the composition is mostly of iron and nickel. He claims that he found a meteor. What is most likely the scientist’s error? He actually found a meteorite. His analysis of the composition is not correct. He incorrectly used the term ""crater."" He actually found a meteoroid.
Answer:
he actually found a meteorite .
Explanation:
once a meteor reaches the earth's gravitational force it becomes a meteorite
Answer:
The answer would be A im an EDGE student
Explanation: Please give 3 stars :D
Select the words and phrases that best develop a positive tone toward Guapo in the passage below. I a cat named Guapo. He is always our neighborhood, looking for delicious bits of food that people have out. Because Guapo is a very active cat who lives outdoors, he has a very body.
The words and phrases that best develop a positive tone toward Guapo in the passage are:
take care ofexploringleftslenderI take care of a cat named Guapo. He is always exploring our neighborhood, looking for delicious bits of left food that people have out. Because Guapo is a very active cat who lives outdoors, he has a very slender body
A phrase is commonly defined as a group of two or more words that work hand in hand but don't form a clause.Example "Yellow popcorn”. it is not a full sentence and does not make a complete sense.
Positive tones are simply nice lovely and kind tones people use in communicating with people.
Conclusively Guapo is being referred to in the short passage with the use of positive tones.
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Select the words and phrases that best develop a positive tone toward Guapo in the passage below.
I ✔ take care of a cat named Guapo. He is always ✔ exploring our neighborhood, looking for delicious bits of food that people have ✔ left out. Because Guapo is a very active cat who lives outdoors, he has a very ✔ slender
body.
Who was the only person thought to have done all they could do to prevent the full tragedy of the Titanic? Question 5 options: the staff of the Californian Captain Rostron of the Carpathia first operator Phillips of the Titanic Captain Smith of the Titanic
Captain Smith is the person who could have prevent the full tragedy of the Titanic.
The British Naval officer who navigate the Atlantic ocean with the Titanic ship was Captain Edward Smith.
En route the journey from Southampton,England to New York City, United States, the great disaster happened to the ship when its stuck an iceberg on high speed which result to inflow of water into the vessel.However, the Captain could have prevented the tragedy by moving the ship at low speed which will buy them time to spot the huge iceberg in the dark hours.In conclusion, the correct answer is E because Captain Smith of the Titanic was in charge of the Ship.
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if 3.00 g g of titanium metal is reacted with 6.00 g g of chlorine gas, cl2 c l 2 , to form 7.7 g g of titanium (iv) chloride in a combination reaction, what is the percent yield of the product?
The percentage yield of titanium IV chloride is 95.8%.
The equation of the reaction is;
Ti(s) + 2Cl2(g) ------> TiCl4(s)
Number of moles of Ti = 3.00 g /48 g/mol = 0.0625 moles
Number of moles of Cl2 = 6.00 g/71 g/mol = 0.0845 moles
The limiting reactant yields the least amount of product.
For Ti, the reaction is 1:1 so it yields 0.0625 moles of TiCl4
For Cl2;
2 moles of Cl2 yields 1 mole of TiCl4
0.0845 moles of Cl2 yields 0.0845 moles × 1 mole/2 moles = 0.0423 moles of TiCl4
Hence, Cl2 is the limiting reactant.
Mass of TiCl4 produced = 0.0423 moles × 190 g/mol = 8.037 g
Note that 190 g/mol is the molar mass of TiCl2 and 8.037 g is the theoretical yield of the compound.
Applying the formula;
%yield = actual yield/theoretical yield × 100/1
In the question, the actual yield was supplied as 7.7 g.
%yield =7.7 g/8.037 g × 100/1
%yield = 95.8%
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Which statement is characteristic of a communist system? Choose four answers. The government controls the means of production. Prices and wages are set by supply and demand. The government regulates a centrally planned economy. Entrepreneurs are encouraged to take risks. Prices and wages are set by the government. Businesses are free to follow their own best interests. A single authoritarian party holds complete power.
Answer:
The government controls the means of production.
The government regulates a centrally planned economy.
Prices and wages are set by the government.
A single authoritarian party holds complete power.
Explanation:
A/1, C/3, E/5, G/7
astronomers discover a new comet that follows a highly elliptical orbit. what is its eccentricity likely to be?
Answer:
its 0.9200
Explanation:
i did the test and got the answer and i literally guessed it and if you think that its wrong just put it in and see for your self
The eccentricity of a newly discovered comet with a very elliptical orbit is most likely to be 0.9200, based on the reasons outlined below.
The eccentricity of a newly discovered comet.The name "comet" refers to a sort of frozen body that is found in the solar system and is made up of ice, rock, and dust particles.
As they get closer to the Sun, their temperature rises, causing the comets to melt. As a result, some gases are released, creating a bright and visible atmosphere.
However, if the comet follows a very elliptical orbit, such as Halley's Comet, its eccentricity ranges from 0.9 to 1.
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Based on the passage, how can repetition be used to learn and retain a speech?
Answer:
Your 5 senses help you remember things so by saying the speech writing it down and reading it will help you remember it after going over it for a while
Explanation: I got a 100 on this
Answer the following question in 3-4 complete sentences. Picture 1: A black and white scene showing men on horseback and men standing in a field. Picture 2: An engraving of an owl in a tree. What method was used to create each image above? Compare and Contrast the two examples above. Provide at least 3 observations.
Picture 1 was likely created using the linocut technique, while picture 2 is the result of wood engraving. These two techniques are both techniques to create images but they differ in their characteristics.
Linocut technique, also known as lino printing, involves using a sheet of linoleum and creating figures on this by cutting shapes with a sharp object. The characteristics of the resulting images are:
Black and white imagesSimple images with some reliefVintage appearanceWood engraving technique is a very traditional technique that involves creating images into a block of wood by using specialized cutting tools such as burins. The characteristics of the resulting images are:
Black and white imagesVery detailed imagesImages with some reliefBased on this, both techniques are used to create black and white images but the characteristics of the images produced and the process of creating these are different.
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Answer: Picture 1 is an example of a linocut. Picture 2 is an example of a wood engraving. Observations may vary, but could include the following: Picture 1 has a lot of dark values, bold lines, and non-detailed images. With picture 1, there is either black or white, and the values are created by the thickness of the lines. With picture 2, the values change based on the detail of the engraving and the amount of ink applied. Picture 2 includes a lot of details and is a realistic portrayal of the subject (owl). The subjects in both pictures are visible and definable. Picture on is of a bull ring, with Spanish matadors and picture 2 is of an owl in a tree. Neither picture uses color.
Explanation:
The guy above is wrong. this will get you 100 percent on test
According to Sumner, what separates the wealthy people in society from the poor people? how they have handled their opportunities in life how much alcohol they drink how much help they have received from others
Answer:
A: how they have handled their opportunities in life
Explanation:
edge 2021
What traditional idea did Enlightenment thinkers challenge to improve the lives and freedoms of ordinary people? government. medicine. religion. science.
The traditional idea that the Enlightenment thinkers challenge to improve the lives and freedoms of ordinary people is: A. government.
The Age of Enlightenment was a period during the eighteenth (18th) century that was characterized by an intellectual and philosophical movement, which highly dominated the world of ideas in Europe.
Enlightenment thinkers challenged existing traditional idea such as knowledge, beliefs and assumptions while desiring social, political and technical progress in Europe.
These traditional ideas were strongly supported both politically and economically by the government, so the Enlightenment thinkers challenged the to improve the lives and freedoms of ordinary people.
In conclusion, the main goals and objectives of the Enlightenment thinkers include the following:
Knowledge.Happiness.Freedom.Read more: https://brainly.com/question/14678051?referrer=searchResults
Answer:
I took the test on edge and it did not give me the answer so if I were to guess it would probably be government because its not religion
Explanation:
This satirical lithograph, published by Currier and Ives in New York in 1869, comments on the feminist movement. A satirical lithograph titled "The Age of Brass." It shows woman standing in line to vote for another woman. A sign next to the female candidate reads, "Vote for the celebrated man tamer." A woman is scolding her husband, who is holding a baby. Which statement most likely represents the point of view of Currier and Ives? Women should be allowed to vote because they dress better than men. Women should not be allowed to vote because gender roles will be reversed. Women should not be allowed to vote because more women will go to the polls than men. Women should be allowed to vote because it will force men to act more responsibly.
The statement most likely represents the point of view of Currier and Ives, Women should not be allowed to voters because gender roles will be reversed. Thus, option (B) is correct.
What are voters?The term voting is a method that a group, such as a meeting or an electorate, can exercise in order to make a socialistic decision or express an opinion, usually following communications, debates, or election campaigns. Ideologies elect holders of high office by voting. Residents of a place.
His satirical lithograph, published by Currier and Ives in New York in 1869, comments on the feminist movement. A satirical lithograph titled The statement most likely represents the point of view of Currier and Ives, Women should not be allowed to voters because gender roles will be reversed.
Therefore, Thus, option (B) is correct.
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Answer:
Women should not be allowed to vote because gender roles will be reversed.
Explanation:
The answer above is correct.
the difference between the words starving and hungry
which of the following species has the same number of protons as fe³⁺?
The number of protons in an element is the atomic number of the element, and it is not affected by the charge on the element. Hence, the species which has similar Number of proton is Fe²⁺
To know the species which the same number of protons as Fe³⁺, we need to obtain the atomic number of the elements on the periodic table :
Fe³⁺, Atomic number = 26; Number of protons = 26Mn³⁺, Atomic number = 25; Number of protons = 25Co²⁺, Atomic number = 27; Number of protons = 27Fe²⁺, Atomic number = 26; Number of protons = 26Ni, Atomic number = 28; Number of protons = 28
Therefore, only Fe²⁺ has the same number of protons as Fe³⁺
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