manganese dioxide is required in the laboratory preparation of oxygen gas though it does not take part in reaction? why​

Answers

Answer 1

Answer:

The Manganese Dioxide doesn't take part in the chemical reaction because it is a catalyst, so it can only increase the rate of the reaction, not change the substances used.


Related Questions

Larry, a 26-year-old man, often falls asleep suddenly. During these sleep attacks, he falls asleep for around 15 minutes and wakes up feeling refreshed. He also hallucinates that a person is sitting on his chest. In this scenario, Larry is likely suffering from __________.

Answers

Answer:

Sleep Terrors.

Explanation:

I majored in Social Studies.

What does 'democracy' mean? *
1)rule by a few
2)rule of the leaders
3)rule by the people, of the people and for the people
4)rule of the powerful

Answers

Answer:

The answer would be the third option (3): rule by the people, of the people and for the people.

Explanation:

Hope this helps! Have a nice night! :D

Answer:

Democracy, literally meaning “rule by the people,” empowers individuals to exercise political control over the form and functions of their government. While democracies come in several forms, they all feature competitive elections, freedom of expression, and protection of individual civil liberties and human rights. So my answer is the (third one.)

Explanation:

I hope you have a nice day (:

1)rule by a few2)rule of the leaders3)rule by the people, of the people and for the people4)rule of the powerful

What was the purpose of the Sugar Act?

Answers

The Sugar and Molasses Act of 1733 was to regulate trade. It was intended to encourage trade with the British West Indies at the expense of the French and Dutch West Indies.

The Spanish had the territory west of the Mississippi River, but it wouldn't take the Colonies long to start _______.
A. pushing farther east
B. pushing farther west
C. leaving the Americas

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Answer:

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explain three reasons why racial differences in intelligence might be caused by environmental factor

Answers

Answer:

1. Access to better books

2. Access to better technology

3. Access to better schools and teaching

Explanation:

Racial differences in environment.

Racial differences are those related to biological, genetic, and disease outcomes. They don't include any social factors and vary with the population groups. The environmental factors are those related to the environut and include the food, population, sound, light, etc.

Hence the answer to the question is accessibility to education, technology, and teaching.

The radical variation in intelligence may be caused by environmental factors like the external factors of the environment at large. They may include vulnerability to several things.The 1st is the accessibility to better books 2nd is the accessibility to a better technology. 3rd is the accessibility to the better schools and teaching.

Learn more about the racial differences.

brainly.com/question/16235284.

Is absolute location (latitude and longitude) or elevation more important in determining Quito’s climate? Explain your reasoning.

Answers

Answer:

wth is quito

Explanation:

Which of the following is a scientific counter-norm? a. organized skepticism c. universalism b. communalism d. organized dogmatism Please select the best answer from the choices provided A B C D

Answers

Answer:

D organized dogmatism

Explanation:

edge 2020

Answer:

The person above me is correct

Explanation:

I just did it

can help me please because I need very urgent

Answers

i cannot see the photo you posted

70 POINTS ONLY ANSWER IF YOU KNOW IT PLEASE What did the Maya believe about the world?

A)It is round.
B)It is cyclical.
C)It moves around the moon.
D)It was made by the Christian God.

Answers

Answer:

B. It is cyclical.

Explanation:

Most beliefs back then were either Christianity, Judaism, Islam, Buddhism Shintoism, Daoism, Sikhism, Muism/Sinisme/Shingyo, Cao Dai or Hinduism. Mayan, Hinduism, Shintoism, Daoism and Buddhism believe in a cyclical lifestyle.

The answer isn't A,B or D because they thought the earth was flat, weren't astronauts and believed in Mayan Gods.

<3 Enjoy,

    Dea

The Maya believe about the world is cyclical.  Thus, option D is correct.

What is a Maya?

The Maya produced some of the best pottery, horticulture, astronomy, chronology, and arithmetic ever, and they also left behind an astounding amount of beautiful structures and meaningful artwork. 

The ancient Maya had a concept of periods and believed in cyclical patterns of production and death. They adhered to the pagan mythology philosophy. The idea of animus is the conviction that every creature, region, and the thing has a unique spiritual value or mind.

The Maya consider the world to be eternal. occurring as a full set of occurrences that frequently occur in the exact order or for a fairly frequent length of time. Therefore, option D is the correct option.

Learn more about Maya , here:

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Which of the following statements does not accurately describe the location of Western Europe?
A.
Western Europe is west of Asia.
B.
Western Europe is north of Africa.
C.
Western Europe is just to the east of the Pacific Ocean.
D.
Western Europe is south of the Arctic Ocean.

Answers

C. western europe is just to the east of the pacific ocean

Western Europe is not south of the Arctic ocean. It is located at the north of it.

What are the borders of the Arctic ocean?

Western Europe is a subcontinent, which is bordered with the Arctic ocean.

Instead of the Arctic ocean, Atlantic Ocean is bordered with the Europe to the south.

The Arctic oceans has been covered with three borders-  Europe, Asia and North America.

Learn more about the Arctic ocean here:-

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write the name of any 2 organization working in nepal to control corruption ?​

Answers

Answer:

Transparency International Nepal (TIN) is a civil society institution dedicated to increasing public accountability and curbing corruption in all walks of life. It is registered at the Kathmandu District Administration Office and is affiliated with the Social Welfare Council.

The United Nations Office on Drugs and Crime (UNODC) and Transparency International (TI) are organizations working in Nepal to control corruption.

UNODC is charged with the responsibility of monitoring and combating transnational crimes that bother on drugs and organized crime. They provide legal, financial, and technical assistance for member countries who are engaged in the war against crime and corruption. Nepal is one of UNODC's member countries.

Transparency International (TI) Nepal is an organization aimed at promoting transparency and accountability in the nations that it serves. It has an Index that is used to compare the state of corruption among countries. Its aim is for societies to be free from corruption.

So, UNODC and TI are organizations working in Nepal to control corruption.

Learn more about corruption control in Nepal here:

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how did John Smith help save Jamestown?
i will give brainliest!!!

Answers

Answer:

He did not allow people to cut down trees, and helped indians. He also planted crops. He was a very kind man.

Explanation:

Answer: um... he taught the early settlers how to farm and work, saving them from starvation

Explanation: I looked it up.

which statement best explains the difference between greenhouse gases and other atmospheric gases
please help​

Answers

Answer:

B

Explanation:

Explanation:

the total forcing from all sources cannot be obtained by simply adding the individual values because different sources can interact to amplify or interfere with one another.........

A major difference between the North and the South was a)The South was needed slaves for the cotton fields and the North needed slaves for their factories. b)The North was becoming industrialized, while the South remained agrarian (farm-based). c)The North's climate didn't allow cotton to be produced, so they didn't have slaves.

Answers

Answer:

b)The North was becoming industrialized, while the South remained agrarian (farm-based).

Explanation:

The northern states of the USA had a strong industrialization and were the main responsible for supplying the country with industrial pipelines, in addition to having a concentration of industries, machines and free workers, since industries did not adopt slave labor. However, a country needs agricultural products to maintain itself and this production was the responsibility of the southern states, which had a strong agrarian nature and supplied the country with this type of production. Farming work required a great deal of cheap labor and for that reason, these states, for the most part, used slave labor.

help me please with compromise of 1850​

Answers

Answer:

sorry got nothing

Explanation:

PLEASE ANSWER I WILL GIVE YOU BRAINIEST!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

i’m pretty sure it’s the second one
“russia claims to have a presidential democracy”

Answer:

B

Explanation:

Russia claims to have a presidential democracy. Vladmir putin is the so called president even though presidential democracy rules are not being followed.

what will happen if a disease destroys all the stores of coffee beans​

Answers

Not only will every white 13-30 year old girl loose there mind, it will crush that industry. Which right now is worth roughly 225.2 billion dollars.

Click to review the online content. Then answer the question(s) below, using complete sentences. Scroll down to view additional questions.
Online Content: Site 1

How is the loss of habitat affecting these tigers? (Site 1)

Answers

Answer:

Tigers have lost an estimated 95% of their historical range. Their habitat has been destroyed, degraded, and fragmented by human activities. The clearing of forests for agriculture and timber, as well as the building of road networks and other development activities

Explanation:

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Answer:

Tigers have lost an estimated 95% of their historical range. Their habitat has been destroyed, degraded, and fragmented by human activities.

Explanation:

why is it important to learn about light and energy in your own words

Answers

Answer:

It is important because light affects water, temperature, biological processes(such as relationship between predator and prey) and plant phothesis. It is important to learn about energy because nergy is essential to life and all living organisms. The sun, directly or indirectly, is the source of all the energy available on Earth. Our energy choices and decisions impact Earth's natural systems in ways we may not be aware of, so it is essential that we choose our energy sources carefully.

Explanation:

I have no explanation.

What were romans like as rulers?​

Answers

They were 12 inches long and also show cinemters

what is meant by school : Zone of peace? ​

Answers

Explanation:

so for example you are the leader of a village and start a war with another village, you guys are affected but the other villages that exist arent, theyre in a zone of peace

When Claire was baking an apple pie, the odor of the pie triggered some memories of her childhood. She remembered playing with her brother in the living room while her mother baked apple pies. Her memory is an example of a(n) __________.

Answers

Answer:

Context-dependent memory

Tensions would rise between the colonists in america and _____.
A. mother england
B. the french
C. the spanish

Answers

Answer:

Tensions would rise between the colonists in america and Britain or mother England.

A) mother England

In other words England or Britain or the British ( all same thing)

This ended after the revolutionary war when Britain gave themselves up to America

Socialization, as a sociological term, describes?

Answers

Explanation:

Socialization :

The process by which people learn characteristics of their group's norms, values, attitudes, and behaviors. personality. patterns of behavior and ways of thinking and feeling that are distinctive for each individual.

hope it helpful

1. Explain how demand works in economics?

Answers

Answer:

demand=want

Explanation:

people demand products for the economy.

the demand= want
therefore, when there is high demand for a product, the price goes up

Why is Mirabeau Lamar dubbed the “Father of Texas Education?”

Answers

Answer:

Mirabeau Lamar is dubbed the “Father of Texas Education” because he put a great deal of money and political support behind improving education in Texas and creating a public education system. Lamar believed that educated citizens made good decisions and prospered which would make Texas prosper as a Republic. He believed in public education so that every citizen of Texas had an opportunity to learn. Under his presidency , Lamar encouraged his Congress to approve 18,000 acres of land for public schools. In addition, he arranged an endowment that provided 231,400 acres of land for universities in Texas.

Explanation:

i really hope this helps and i got an 100 on my test :)

Answer:

Mirabeau Lamar is dubbed the “Father of Texas Education” because he put a great deal of money and political support behind improving education in Texas and creating a public education system. Lamar believed that educated citizens made good decisions and prospered which would make Texas prosper as a Republic. He believed in public education so that every citizen of Texas had an opportunity to learn. Under his presidency , Lamar encouraged his Congress to approve 18,000 acres of land for public schools. In addition, he arranged an endowment that provided 231,400 acres of land for universities in Texas.

Explanation:

Match the developments to their effects.

CAFE standard

light-rail system

carpool lanes

better fuel economy in cars


fewer cars on the nation’s highways


more people taking public transportation systems

Answers

Answer:

CAFE standard - better fuel economy in cars .

Light-rail system - more people taking public transportation systems.

Carpool lanes - fewer cars on the nation’s highways .

Explanation:

The three developments with their effects are as follows-

1. The CAFE (Corporate Average Fuel Economy) is a regulation adopted by the United States Department of Transportation that helped regulate the energy consumption of vehicles. It also calculates the amount of fuel needed by a certain type of vehicle in covering a certain amount of distance etc.

2. Light-rail system is a type of public transportation that involves trains that are of lower capacity and speed to that of metro systems but also higher capacity and speed than that of traditional trams. This system was introduced in order to influence more people to take public transport system rather than travel by their private transportation systems.

3. Carpool lanes are separate lanes for cars or vehicles that have a driver and more than two passengers such as in carpools, vanpools, etc. These particular lanes were made so that more people might opt for such carpools and will lead to fewer cars on the highways.  

Most drugs of abuse flood the circuits of the reward center in the brain with ______; some drugs also reduce the level of _________ after long term use and causes _____________.

Answers

Answer: feeling of pleasure, dopamine, tolerance

Explanation:

Drugs of abuse causes the brain to produce neurotransmitters called dopamine, this neurotransmitter produces a sense of pleasure. The constant intake of drugs increases the tolerance of drug and the body requires more dose so as to experience the desired effect. Drug abuser may need more amount of drug than before to experience the same level of dopamine to get high.

I NEED HELP PLEASE


in addition to fresh troops and supplies what did america bring to the war when it entered in 1917

a. a morale boost
b. secret information
c. vaccines for spanish influenza
d. talented spies


please make sure its the right answer

Answers

Answer:

A moral boost

Explanation:

The dough boys gave the European troops hope (moral boost) because they were fresh and ready for the war.

Answer:

a morale boost

Explanation:

The stronger the commitment to a community, the less likely people are to engage in deviant behavior. Please select the best answer from the choices provided T F

Answers

Answer:

t

Explanation:

Answer:

true on edge

Explanation:

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