Question 17(Multiple Choice Worth 2 points)
A scientist measures the rate of a reaction between two liquids. Then, he performs the reaction again, adding solid manganese. The reaction takes place more
quickly the second time. The mass of the manganese decreased by 0.45 grams during the reaction. He claims that the manganese acted as a catalyst because
sped up the reaction. Is the scientist correct? Why or why not?
Yes, because the reaction happened more quickly with the manganese.
Yes, because the manganese was a solid, and all solids are catalysts.
No, because manganese is a metal, and metals cannot be catalysts
No, because some manganese was used during the reaction, and catalysts are not used up.

Answers

Answer 1

Answer: D

A catalyst is a substance that alters the reaction and doesn't involve in the reaction.So if the Manganese was a catalyst the mass would not have decreased,it would just continue aletring the reaction until its used up.

The Manganese is not acting as a catalyst

Answer 2

Answer: The answer is D

Explanation: just did test on flvs


Related Questions

What conclusion about life in the United States during World War II can be drawn from this poster? (7 points)




A. Politicians began actively courting the women's vote for the first time.



B. The government felt the need to encourage women to enter the workforce.



C. Women's rights activists began fighting for women's right to serve in combat roles.



D. Labor unions began to accept women as members for the first time.

Answers

B is the answer but sorry if wrong

Answer: B

Explanation:

What did President Kennedy make
citizens of the United States feel about
their duty to country?
A. it was their right
B. it was their privilege
C. it was their responsibility
D. it was their calling

Answers

Answer:

It would be C.

Explanation:

His famous Inaugural post " Ask not what your country can do for you, but what you can do for your country." Not only was a warning to the Soviets and their Allies against pushing the US into a nuclear war, but a call to service from the US citizens to do their duty and defend the country, to see the importance of civic action and public service.  This challenged every American to contribute in some way to the public good.

What arguments could be made for supporting the Radical Republican view of adding further punishment?

Answers

The correct answer to this open question is the following.

Although the question does not provide options or further reference, we can say the following.

The arguments that could be made for supporting the Radical Republican view of adding further punishment to the Confederate States during the Reconstruction period were that the Confederate Army caused too much damage and destruction in the United States territory, as well as many deaths. These were enough reasons for radical Republicans to demand more severe punishment for the South. Furthermore, the South had not adopted the emancipation proclamation and still had many landowners who possessed slaves. Some other southern states did not grant civil rights to African Americans and it was notorious the racial segregation is the South. And of course, Radical Republicans were against this.

Which is true of FDR?

Answers

Answer: the answer is a.

Explanation:

He harnessed radio to speak directly to the American people, giving 30 "fireside chat" radio addresses during his presidency and becoming the first American president to be televised.

Answer:

By speaking to Americans on the radio, he made the New Deal understandable

Explanation:

who here is a supercar fanatic and wants to nerd out with me?

Answers

Sure, what specifically do you wanna talk about?

Answer:

ME

Explanation:

What was the intention of the Sherman Antitrust Act?
A. Promote the West as good for business
B. Break trusts to increase competition of businesses
C. Remove wealthy businessmen from the government
D. Reduce competition by allowing larger companies to buy smaller companies

Answers

Answer:

D

Explanation:

first Federal act that outlawed monopolistic business practices. The Sherman Antitrust Act of 1890 was the first measure passed by the U.S. Congress to prohibit trusts.

Which letter represents the territory where the Suez Canal was built

Answers

Answer:

Egypt I think

Explanation:

Answer:

In the early 1850s the French diplomat and engineer Ferdinand de Lesseps (1805–1894) revived earlier French plans to build a canal through the Isthmus of Suez. He saw the immense benefits such a canal would bring, reducing by 3000 miles the distance by sea between Bombay and London, and he was instrumental in its successful completion. These letters, published in this English translation in 1876, show how De Lesseps persuaded the Viceroy of Egypt to allow construction, and how he overcame opposition from Britain and Turkey. Letters to the Viceroy, Emperor Napoleon III, Members of Parliament, diplomats, and politicians throughout Europe, together with more personal letters to his wife, all illustrate his resolute determination to see his project succeed. This is an invaluable source, not only on the canal, but also on the politics of the major powers and European attitudes towards the Middle East and its people.

Who became the president of Texas after the region became independent from Mexico?
Stephen Austin
William Travis
Sam Houston
Jim Bowie

Answers

Answer:

Sam Houston

Explanation:

What point did Ida B. Wells make about lynching in the South?
O A. African Americans in the South should be patient in getting
protection from courts.
B. The only chance that African Americans had to protect
themselves was to leave the South.
C. African Americans could defend themselves in the South if they
organized into armed groups.
D. The importance of family ties outweighed the disadvantages
African Americans had in the South.

Answers

Answer:

B. The only chance that African Americans had to protect

themselves was to leave the South.

Explanation:

Hope this helps

Life is short so spend it with the ones you love most

What can be concluded about the long-term effects of Alexander Graham Bell’s invention? It increased literacy rates by encouraging people to communicate through the written word. It encouraged the development of new cities and trades by allowing people to travel farther and faster. It improved the economy by increasing the number of hours people could work each day. It enabled families to remain in close contact even as they moved across the country and across the world.

Answers

Answer:

It enabled families to remain in close contact even as they moved across the country and across the world.

Explanation:

Alexander Graham Bell is a well known scientist and engineer, who is widely known for the invention of Telephone.

Telephone is practically used for making calls, whereby a user at one end, can get to listen and hear the other user, at the other end, regardless of the distance and location, in as much the telephone service network is available.

Hennce, it can be concluded that the long-term effects of Alexander Graham Bell’s invention, which is basically Telephone, is: "it enabled families to remain in close contact even as they moved across the country and across the world."

The long-term effects of Alexander Graham Bell’s invention enabled families to remain in close contact even as they moved across the country and across the world.

Graham Bell invention had a long term effect by making communication faster and easier. People stayed closely connected to their families through the telephone.Telephones connected people even as they moved across the country and the world.

Therefore we can conclude that the option D. is the correct answer.

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DAILY NEWS
President Reagan
Proposes Tax Cuts for
the Wealthy
Works with Congress on Budget
This headline resulted from the Reagan administration's belief in:
O A. the Great Society
B. Keynesianism.
© C. deregulation.
D. trickle-down economics.

Answers

D. Trickle down economics

Answer:

D trickle down economics

Explanation:

what was the challenges that women went through 1950s-1970

Answers

Sexism is one of the answers

2 Points
World War I propaganda referred to Germans as "Huns" to make them seem:
A. Barbaric
B. Silly
C. Strong
D. Untrustworthy
SUBMIT

Answers

Answer:  A

Explanation: The Huns are known for being barbaric.

World War I propaganda referred to Germans as "Huns" to make them seem Barbaric. Thus, option A is correct.

What is a World War I?

The world was first exposed to the brutality of total war and dangerous technological advancements like sarin gas and tanks during World War I, which raged. Upwards of 16 million combat civilians and troops perished, resulting in perhaps the most horrible destruction the world has ever experienced.

The most significant propaganda motifs were independence as well as nationalism. Because volunteers as well as professionals completely fabricated the British Regiment in 1914, the authorities mainly depended on marketing to persuade the population that the war was justified in that age.

Therefore, option A is the correct option.

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Each morning, Cassandra makes a cup of hot tea for her elderly neighbor.
They have become good friends over the past year. They often take walks
together, and Cassandra really enjoys helping out her neighbor. What type of
health sciences career pathway would you recommend for Cassandra?
O A. Diagnostic services
O B. Therapeutic services
O C. Biotechnology research
O D. Support services

Answers

D or B as she is it is clearly shown that she is a people person, meaning that this area of work would be great for Cassandra.

What did the government hope to avoid when creating the Articles of Confederation?

Answers

Answer:

No enforcement of laws and weakness. The government hoped to avoid other states fighting each other since at the time there was no regulation of taxes, laws, trade, etc. States had their own currency. The Articles of Confederation failed tremendously. The hoped to avoid the downfall of the articles of confederation and war between the states.

Explanation:

The goal of the First Crusade was to
a.
gain riches and gold
c.
extend the Holy Roman Empire
b.
bring glory to the Pope and his followers,
d.
retake the Holy Land

Answers

Answer:

d retake the holy land

Explanation:

d retake the holy land

Answer:

D.) Retake the Holy Land

How did Thomas Paine's Common Sense influence the Declaration of Independence?

A. By giving reasons the colonies should separate from Britain

B. by providing an early draft of the document

C. by outlining the Articles of Confederation

D. by suggesting who should wnte the document​

Answers

Answer:

The correct answer is A

Explanation:

Paine stated his reasons why the time was right for the break from England.

He said that no one was born a natural leader and gave arguments that people are born in to a state of equality. Paine was An advocate of natural rights theory.

Answer:

A. By giving reasons the colonies should separate from Britain

Explanation:

Which statement best describes India?

Projected to become a leading world economic power, it provides information technology and software services to other countries.


Formerly part of the Soviet Union, it is now an independent, industrialized nation governed by a Maharajah.


Moving from underdeveloped nation to developing nation, it provides agricultural products to all of Southeast Asia.


Once a developing nation, it is now an urbanized country with an economy based on oil.

Answers

Answer:

Projected to become a leading world economic power, it provides information technology and software services to other countries.

Explanation:

The economic growth of India hasn't had a down year in this century, and since 2014 it expanded at around 7 percent per year. In India, the IT sector is a significant part of the economy of the country. In 2017, IT and its multiple sub-sectors accounted for nearly eight percent of the overall GDP of the country. Making a contribution of roughly 55 percent of market share to Global Services Sourcing Business in 2017-18, India continues to increase at a faster rate compared to the global IT-BPM industry.

How did Woodrow Wilson plan to prevent future wars?
O A. He wanted to punish Germany so the nation could never fight a
war again.
B. He argued that trade limitations would be enough to prevent future
conflicts.
O c. He argued for the creation of an international body to help solve
disputes.
O D. He argued that nations should be forced into alliances to gain
military protection.
long​

Answers

Answer:

C

Explanation:

Woodrow Wilson plan to prevent future wars in a way that He argued that nations should be forced into alliances to gain military protection. Thus, option D is correct.

Wilson had witnessed the terrifying nature of war. He was born in Virginia in 1856, the son of a Presbyterian preacher who served as a pastor in Augusta, Georgia, during the Civil War and as a professor in Columbia, South Carolina, during Reconstruction.

Wilson pursued an academic career after earning degrees from Princeton (then the College of New Jersey) and the University of Virginia Law School. Wilson also attended Johns Hopkins University for his PhD. He wed Ellen Louise Axson in 1885.

Wilson, a conservative young professor of political science, rose quickly through the ranks and was elected president of Princeton in 1902.

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Although the United States were formed
following the American Revolution,
trouble arose when each state had its
own
A. army
B. president
C. constitution​

Answers

Answer:

C.

Explanation:

constitution , because trouble arosee when each state had it's own .

The difficulty came when each state had its own constitution when the United States was founded following the American Revolution.  Thus, option (C) is correct:

What is a Revolution?

A revolution is a fundamental shift away from the status quo, typically involving established political and social structures, according to the departments of history and political science. A revolution is a fundamental and generally quick shift in political power and political organization that happens when the populace rebels against the government.

Following the Revolutionary War, there was a time of turmoil and transformation. The loss of monarchical control, changing administrative systems, religious diversity, difficulties with the family structure, shifting economic conditions, and significant population shifts all contributed to an increase in unpredictability and insecurity.

Therefore,  Thus, option (C) is correct:

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A common problem described in popular music of the 1930s was
not having money and standing in bread lines.
needing ten more cents to buy something.
losing a job and trying to find a new one.
having to regularly borrow money from friends.

Answers

Answer:

not having money and standing in bread lines.

Explanation:

The common problem described in popular music of the 1930s was not having money and standing in bread lines . This was because it was during the period of Great Depression after the war.

It was characterized by poverty and joblessness in the country. This however changed as many reforms and laws were later being put in place to change the situation.

Answer: Not having money and standing in bread lines.

Which statement best completes the diagram?
The Fourteenth
Amendment is
passed.
Courts interpret
the equal
protection clause
as requiring
racial and ethnic
groups to be
treated equally
?

Answers

Answer:

Women are admitted to the Virginia Military Institute.

Explanation:

'Affirmative action programs benefiting minorities are restricted', best completes the diagram. The right answer is A.

The term "affirmative action" refers to initiatives taken by the US government to increase educational and employment opportunities for women and minority groups in society. By assisting minorities and women in completely integrating into society, affirmative action seeks to lessen the prejudice that still persists against them.  

African Americans and slaves freed after the Civil War are granted citizenship and civil rights under the United States Constitution's 14th Amendment Act, which was enacted in 1868. The act served as a lifeline for the Affirmative Action Plan's execution, which focused on enhancing African Americans' access to education and social well-being.  

The correct answer is option A.

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The question seems incomplete. The complete question is:

Which statement best completes the diagram?

A. Affirmative action programs benefiting minorities are restricted

B. States gain the right to restrict same-sex marriages

C. Racial segregation is strengthened by the decision in Brown V. Board of Education

D. Defendants must be tried before juries that consist only of people of their racial or ethnic group

8. Graph 1 shows the production possibilities frontier for a country. In order for it to move from producing
at point A to producing at point B, the country would need to
a. decrease SUV production by 1 million.
b. decrease SUV production by 3 million.
C. decrease SUV production by 4 million.
d. decrease compact car production by 3 million.

Answers

Answer:

b. decrease SUV production by 3 million.

The first three words, “We the people”, were very significant for that time. They signified that this new country and it’s government were for all people. Since it’s conception over 200 years ago do you still feel that the ideas listed in the Preamble apply to American’s lives today? Why or why not?

Answers

Answer:

poop

Explanation:

Why were the Crusades fought?
a.
to bring the eastern bishops back under the pope’s control
b.
to protect European territory from invading Muslims
c.
to unite the Roman Catholic Church and the Eastern Orthodox Church
d.
to gain control of Palestine, the Holy Land

Answers

Answer:

D.) to gain control of Palestine, the Holy Land

What is true about sound in a theater?

Music is rarely used in the theater.

Dialogue needs to be audible to the audience.

Arranging sound for a theater performance is fairly easy by using shotgun microphones.

All of the above are true.

Ig alexpostdat plz text me there

Answers

Your answer would be the second one about theatre because the sound in the theater that’s what the question is asking , it has to be more clear for audience and loud so when the audience is watching a movie, they hear what the actresses are saying in the movie

hope this helps !

Please Answer Quick!!

The revelation of Jesus in glory to the Apostles Peter, James, and John is the ___________.
A. Great Commandment
B. Transfiguration
C. New Testament

Answers

It B. The transfiguration

Why was Patrice Lumumba assassinated?

Answers

Answer:

In late October 1959, Lumumba, as leader of the MNC, was arrested for inciting an anti-colonial riot in Stanleyville; 30 people were killed

Answer:

Lumumba appealed to the United States and the United Nations for help to suppress the Belgian-supported Katangan secessionists led by Moise Tshombe. ... Lumumba was subsequently imprisoned by state authorities under Mobutu and executed by a firing squad under the command of Katangan authorities.

Explanation:

Plz mark brainliest!

What happened at the Constitutional Convention?
A. Delegates wrote the United States Constitution.

B. The Declaration of Independence was written.

C. Delegates signed the Articles of Confederation.

D. The Preamble to the Constitution was changed.​

Answers

Answer:

the answer is A

Explanation:

Answer:

A. Delegates wrote the United States Constitution.

Explanation:

Just did test. Have a great day!

On, June 7, 1776, who proposed to
the Second Continental Congress that
they should declare independence
from Great Britain?
A. John Adams
B. Richard Henry Lee
C. George Washington
D. Alexander Hamilton

Answers

Answer:

B: Richard Henry Lee proposed to the second continental congress.

Answer:

B

Explanation:

Other Questions
Does (3, 8) make the equation y = x + 5 true? Solve for y-1 + y/8< 15. 2 PointsWhy can exercising outdoors be a particularly dangerous time for your lungs?A. During exercise, you take in up to two to three times the amountof air that you normally breathe, which also means you inhalemore pollutants.B. During exercise, you take in up to two to three times the amount ofair that you normally breathe, which overloads your muscles withoxygen, causing cramps.O C. During exercise, you take in up to two to three times the normalamount of air that you would breathe during that time period,which can give you a migraine headache.O D. During exercise, you take in up to two to three times the amount ofair that you normally breathe, which can make you light-headed,increasing your risk of falling and hurting yourself. The Compromise of 1850 resulted in which of the following events?O A. The Treaty of Guadalupe Hidalgo was approved.O B. California became a free state.C. New Mexico became a part of Texas.D. Manifest Destiny was no longer a goal of the United States. the two-way table shows the attendant careers among the incoming class of first-year college students, divided by gender. If a female student is chosen at random, what is the probability that she intends to be a research scientist? maria (divertirse) en la fiesta Please help! Correct answer only! What is the slope of the line in this graph?A. 5/9 B. 5/7C. 7/5D. 9/7 what is the capital city of Bangladesh? Even though slavery ended after the Civil War, what conditions led someleaders to call for a separate nation for black people? Choose TWO answersSELECT ALL THAT APPLY1. Jim Crow laws kept black people separate from whitepeople and defended black people getting inferiorservices.2. Black people could not find jobs or housing in the areaswhere they had formerly been slaves.3. If accused of crime, some black people were lynched bymobs without fair trials by jury.4. White people were fighting to reestablish slavery in theSouth. W.T. Ginsburg Engine Company manufactures part ACT30107 used in several of its engine models. Monthly production costs for 1,090 units are as follows: Direct materials $46,000 Direct labor 10,500 Variable overhead costs 32,500 Fixed overhead costs 22,000 Total costs $111,000 It is estimated that 6% of the fixed overhead costs assigned to ACT30107 will no longer be incurred if the company purchases ACT30107 from the outside supplier. W.T Ginsburg Engine Company has the option of purchasing the part from an outside supplier at $94.75 per unit. If the company accepts the offer from the outside supplier, the monthly avoidable costs (costs that will no longer be incurred) total ________. 1/3 of 6 1/2 multiply 3/4 (56 divide by 7) pls help me Firm B, a calendar year, cash basis taxpayer, leases lawn and garden equipment. During December, it received the following cash payments. To what extent does each payment represent current taxable income to Firm B? a. $522 repayment of a loan from an employee. Firm B loaned $500 to the employee six months ago, and the employee repaid the loan with interest. b. $600 deposit from a customer who rented mechanical equipment. Firm B must return the entire deposit when the customer returns the undamaged equipment. c. $10,000 short-term loan from a local bank. Firm B gave the bank a written note to repay the loan in one year at 9 percent interest. d. $888 prepaid rent from the customer described in part b. The rent is $12 per day for the 74-day period from December 17 through February 28. dormir | envolver | pedir | poder | repetir | seguir | servir | tener Pablo: En tu familia, festejan los cumpleaos de los familiares? Mayra: S, siempre! Mis abuelos, tos y primos viven cerca de aqu. Por eso (So) nosotros festejar todos los cumpleaos juntos (together). Pablo: Cmo son las celebraciones? Mayra: Nosotros siempre una gran fiesta en nuestra casa. Todos ayudamos (help) con los preparativos. Pablo: Quin prepara la comida? Mayra: Mi hermana Alicia es la chef de la familia y yo soy su asistente. Alicia organiza todo y yo sus instrucciones. Mis dos hermanos menores son los meseros (waiters) y la comida a los invitados. Pablo: Ustedes son muy organizados y trabajadores! As que (So) todos participan en los preparativos. Mayra: S, todos. Por ejemplo, mi hermanito Miguel los regalos con papel de diferentes colores. Pablo: Decoran la casa tambin? Mayra: Claro que s! En las fiestas para los nios, decoramos toda la casa con globos de muchos colores. Cuando es el cumpleaos de uno de los mayores, por lo general yo rosas de la florera (florist shop). Pablo: Tus fiestas son muy divertidas, verdad? Mayra: S, todos disfrutamos mucho de la msica, la comida El nico aguafiestas (party pooper) es mi to Nstor. Despus de (After) comer, l en el sof! Which on the lines best describes perpendicular lines? Mutations can occur in different cell types, what are these two types called? Question 8Complete the sentence with the most suitable transition.Cody is not very friendly,______his friends adore him.A:and. B:yet. C:theD:for The number of newly reported crime cases in a county in New York State is shown inthe accompanying table, where x represents the number of years since 2001, and yrepresents number of new cases. Write the linear regression equation that representsthis set of data, rounding all coefficients to the nearest hundredth. Using thisequation, find the projected number of new cases for 2013, rounded to the nearestwhole number. Which of the following ideas is further developed by Edna's inability to refuse Robert?Edna is the dominant partner in this relationship.Edna is destined to lose Robert to another woman.Edna is no longer in complete control of her situation.Edna will not be able to leave her husband for Robert. Rewrite the following sentences using the verb esta or hay1. En la lavanderia hay una lavadora >>2. En el salon hay unos sillones >>3. En el despacho hay una estantera >>4. Las macetas estn en la terraza >>5. El ventilador esta en el dormitorio Suppose you manage a local grocery store, and you learn that a very popular national grocery chain (Whole Foods or Walmart) is about to open a store just a few miles away. Use the model of monopolistic competition to analyze the impact of this new store on the quantity of output your store should produce (Q) and the price your store should charge (P). What will happen to your profits? Please show graphically and explain your reasoning in detail. For example, how and why do profits change? How can that be seen on the graph?