What is the percent by mass of magnesium inMgO a)20% b)50% c)40%d)60%

Answers

Answer 1

Answer:

d) 60%

Explanation:

Given the chemical formula;

MgO = Magnesium oxide.

First of all, we would determine the relative molecular mass (RMM) of MgO.

Atomic mass of Mg = 24

Atomic mass of O = 16

RMM (MgO) = 24 + 16 = 40 g/mol

Next, we would find the percent by mass of magnesium (Mg);

% Mg = 24/40 * 100

% Mg = 2400/40

% Mg = 60 percent.


Related Questions

4. What was the main reason for Japan uniting with the Axis Powers and entering into World War II?
to showcase their new military strength and to gain control of the Pacific region
to address their poverty and little hope of advancement after the Russo-Japanese War
O
to keep foreign developers and imperialist powere from entering its borders
to gain a strong military partner for their efforts to conquer the Pacific region

Answers

Answer:

A. to showcase their new military strength and to gain control of the Pacific region

Explanation:

It is correct I took the test

Which of the following conditions provided the greatest catalyst to the women's liberation movement of the 1970s?

a) the belief that women's traditional roles had changed too drastically since the end of world war 2
b) the belief that American women lacked empowerment in the areas of school, work, and home life
c) the belief that women had lost ground when many left wartime employment for life as full-time wives and homemakers
d) The belief that advertisers and magazines seduced women by a propaganda campaign that mischaracterized them.

Answers

Answer:

B

Explanation:

Answer:

B) The belief that American women lacked empowerment in the areas of school, work, and home life.

Explanation:

Took the quiz.

Hemingway and Fitzgerald were two authors who criticized American consumerism and the war. They were part of a literary movement known as the lost generation. postmodernism. the Harlem Renaissance. the Beat Generation.

Answers

Answer:

The Lost Generation.

Explanation:

The term "Lost Generation" was a term used to refer to a group of writers who emerged during and after World War I. Coined by Gertrude Stein and was used to refer to the 'disoriented, lost, wandering' spirit of the men after the war.

This term was then used by Hemingway in his The Sun Also Rises when he states "You are all a lost generation". The most common feature of this type of writing can be seen in the depiction of a lost, or failed American dream. This theme is also used by F. Scott Fitzgerald in his The Great Gatsby.

The correct answer is the Lost Generation.

The Lost Generation.

What does a patent do?​

Answers

A patent is an exclusive right granted by country to allow the inventor to exclude others from making, using or selling their invention in that country during the life of the patent.

A patent is given to inventors, this allows them to prevent others from using, making, or selling their invention for the next 20 years. It provides protection to prevent others from stealing their idea.

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In what ways did Jesus bring new life to the human race?

Answers

Answer:

In order to complete the work of bringing new life, Jesus sent the Holy Spirit that helped people to live a new life through faith in Him. (John 20:22) .

Explanation:

Jesus brought new life to all the human race through his:

Life, Teachings and Deeds.

Death and Resurrection.

Holy Spirit.

Explain the major charge that senators McCarthys speech presented

Answers

Answer:

During a five-hour speech, McCarthy presented a case-by-case analysis of his 81 "loyalty risks" employed at the State Department. It is widely accepted that most of McCarthy's cases were selected from the so-called "Lee list", a report that had been compiled three years earlier for the House Appropriations Committee.

Explanation:

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Answers

Answer:1st one

Explanation:

Answer:

popular uprisings

I believe I'm not sure so it may or may not be right

Explanation:

help i need all of them fast

Answers

1. Humanitarian Aid
2. Military Aid
3. State Department

In which region

or

subregion

was

manufacturing most common?

Answers

Answer:

In fact, the Northeast is one of the most heavily industrialized and urbanized areas in the world. The Atlantic seaboard cities of Philadelphia, Boston, and New York City serve as international trade centers. Coal, iron ore, and oil—found mainly in Pennsylvania—fueled the industrialization of the region

Explanation:

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Answer:

The North

Explanation:

If we are talking about the mid/late 1800s and early 1900s then the answer is North.  At the time there were very few plantations in the North because their primary source of income was making and selling goods. While in the South they mainly focused on harvesting things like cotton, sugar, tobacco, and rice.    They had only had a couple of factories. In the West, they had both farms and factories. Both were important in the West, but they mainly focused on natural resources such as coal, iron, wood/trees, and sometimes gold.

Hope I could help!!

what was a direct result of the Kansas and Newbraska act?

Answers

Answer:

The Kansas-Nebraska Act was passed by the U.S. Congress on May 30, 1854. It allowed people in the territories of Kansas and Nebraska to decide for themselves whether or not to allow slavery within their borders. The Act served to repeal the Missouri Compromise of 1820 which prohibited slavery north of latitude 36°30 it led into decades called bloody kansas, where pro and anti slavery groups fought

Explanation:

As a result of the ______. China was forced to legalize opium and lost control over its economy.

A. Taiping Rebellion
B. Meiji Restoration
C. Opium Wars
D. Boxer Rebellion

Answers

Answer:

C. Opium Wars

Explanation:

There were two opium wars that mainly had Chinese forces against British forces. China had lost both times and would gradually lose economic hubs (coastal cities) to Britain and other European Powers. The reason for these wars was the restrictions on opium, China had placed in. The British had made a lot of money off of the opium trade, they were not keen on losing such a trade so they went to war.

Answer:

Opium Wars

Explanation:

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who is pewdiepie? and why is pewdiepie

Answers

Answer:

Have you ever eaten a pubepie? that's why

Answer:

Pewdiepie is an organism comprized of Minecraft and tamborines. His allies are Edgar, Maya, Marzia, Mr.Beast, Sven, Jorgen, Bengt, Members of Floor Gang, and more. His enemies are T-Series, Celing Gang, & Cocomelon. He has one weakness which is..................................Rickrolls.

Explanation:

Qué objetivos se propuso el gobierno de la Patria Nueva ? Qué sectores sociales se beneficiaron de las políticas aplicadas por el nuevo presidente?

Answers

La propuesta de la “Patria Nueva” planteada por Leguía cuyo contenido esencial fue: Democratizar el régimen político nacional través del voto plebiscitario, en oposición a la fenecida República Aristocrática.

si esto te ayuda a marcarme de la manera más inteligente

two goals of Hitler's philosophy in Mein Kampf and what were his reasons for such a goal?

why did Hitler came up with the idea that the Germans were the master race?

how does Hitler become dictator of Germany and gain control of Germany?

Explain how Adolf Hitler gained and maintained power in Germany.

Answers

Answer:

Explanation:Hitler ifundía su creencia en la "pureza" racial y la superioridad de la "raza germana", lo que él llamaba una "raza aria superior". Declaró que su raza debía permanecer pura para poder tomar el control del mundo algún día. Para Hitler, el ideal "ario" era rubio, de ojos azules y alto.

En 1923, los nazis dieron un golpe de Estado conocido como el Putsch de Múnich, que tuvo como resultado la ilegalización del partido y el encarcelamiento de Hitler. - Tras volver en la legalidad, los nazis participaron en procesos electorales, llegando al poder en 1933 con Hitler como canciller (jefe de gobierno).

En las elecciones de 1932, los nazis ganaron el 33 por ciento de los votos, más que cualquier otro partido. En enero de 1933, Hitler fue nombrado canciller, el jefe del gobierno alemán, y muchos alemanes creyeron que habían encontrado al salvador de la nación.

". . . The key-stone of the Fascist doctrine is its conception of the State, of its essence, its functions, and its aims. For Fascism the State is absolute, individuals and groups relative. Individuals and groups are admissible in so far as they come within the State. Instead of directing the game and guiding the material and moral progress of the community, the liberal State restricts its activities to recording results. The Fascist State is wide awake and has a will of its own. For this reason it can be described as ethical'. . . ." — Benito Mussolini, Fascism: Doctrine and Institutions, Howard Fertig, 1932 Which statement expresses the main idea of the passage?A) The people have a right to overthrow ineffective governments.B) The state is more important than the individuals within itC) The state gets its authority from the power of individualsD) The establishment of an empire will cause division and chaos

Answers

Answer:

B) The state is more important than the individuals within it.

Explanation:

In this passage, Benito Mussolini regards the state, particularly the Fascist State, as a living entity which has its own will and conscious. He says that it is an absolute organisation and individuals within the Fascist State are admissible to its authority.

It expresses the idea that the state is more important than the individuals within it because it believes that individuals have no absolute right over the state.

Mussolini's concept of the state having its own will and power simply projects the idea that the state does not derive its power from the people rather has its own innate authority within it.

Why do you think whites wanted to keep African Americans from voting

Answers

Answer:

They Wanted to keep black from voting because they would vote for the republicans which would take the slaves and with the majority of the population in the south being slaves the republicans would have won.

Explanation:

Answer:

The whites thought they were better than the colored people and thought that they didn't deserve the right to vote.

Explanation:

At lease that is what I was taught in school

History is so messed up bro

The State of Florida Constitution is similar to the United States Constitution because it:
Is the same length and has the same laws
Is the Supreme Law of the Land
Extends the power of the government
Protect the rights of individuals

Answers

Answer:

ez

Explanation:

e

How did Paul influence early Christian communities?

A. He asked the roman emperor to convert
B. He endured very public suffering for his faith
C. He became the first pope of the Catholic church.
D. He wrote letters to help new church communities.

Answers

Answer:

D. He wrote letters to help new church communities.

Answer:

D. He wrote letters to help new church communities.

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Which emperor of the Mughal empire do you think was the best ruler?​

Answers

Answer:

Akbar

Explanation

Humayun's son Akbar (reigned 1556–1605) is often remembered as the greatest of all Mughal emperors. When Akbar came to the throne, he inherited a shrunken empire, not extending much beyond the Punjab and the area around Delhi.

Why is it important for governments to have some sort of checks and balance system?

Answers

Answer:

The system of checks and balances is an important part of the Constitution. With checks and balances, each of the three branches of government can limit the powers of the others. This way, no one branch becomes too powerful. ... the power of the other branches to make sure that the power is balanced between them

Explanation:

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what is harrapa civilization​

Answers

A type of civilization called Harrapa

For what reasons do elected officials mostly use social media?

Answers

Answer:

Elected officials mostly use social media because most people are on social media.

Explanation:

The reasons are as follows.

Social Media is a large platform and many people are on the various platforms many times during a single day. So these officails can broadcast their information and hundreds and thousands of people will see it.

Name and describe at least 5 additional ways that African
Americans became educated during Reconstruction,

Answers

Answer:

which year are you reading in so can I help You❤

How do court rulings set precedents?

Answers

Answer:

Precedent is generally established by a series of decisions. Sometimes, a single decision can create precedent. For example, a single statutory interpretation by the highest court of a state is generally considered originally part of the statute.

Explanation:

I hope that this helped ;)

Who are "three fifths of all other persons not comprehended in the foregoing description"? A. Hispanics c. Slaves B. Native Americans D. Analo Sayons​

Answers

The answer is C) slaves
c) slaves. Explanation: After the Emancipation Proclamation of 1865, the Unionist North was reunited with the Confederate South, but Lincoln (and later McKinley when Lincoln was assassinated) took 10 years to fully reinstate the United States of America, and this was one interim measure. Ultimately, one vote equaled one vote, regardless of color (but not gender, which took another 50 years with the Women’s Suffrage Act). Hope that helps!

What was the cause of the South American Revolution?

Answers

most of the events that led to the Latin American revolution were begun because of the Spanish colonization and conquering of the Latin American people. Spain setting up colonies in the Americas.

How is life impacted by cultural patterns in Saudi Arabia?​

Answers

Answer:

Hey mate.....

Explanation:

This is ur answer.....

The culture of Saudi Arabia is defined by its Islamic heritage, its historical role as an ancient trade centre, and its Bedouin traditions. The Saudi society has evolved over the years, their values and traditions from customs, hospitality to their style of dressing, are adapting with modernization. The cultural aspect of Saudi Arabia is represented in the following:

Depth of its civilization that dates back to more than one million years, which is confirmed by the archaeological evidence and the heritage prevalent in this country.

It was the land of many kingdoms and states that prevailed in the evolution of human civilization.

Its distinguished geographical location made it a point of intersection of international trade routes through all the ages.

Being the cradle of Arabism and Islam and the country of The Two Holy Mosques.

Being a crossroads of cultures and a bridge for cultural communication.

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How did the Axis Powers each defy the allies prior to the war?

Answers

-Nazi Germany prior to the war had violated multiple terms agreed to the Treaty of Versailles.

-Fascist Italy had invaded Ethiopia to expand their influence in Africa.

-Imperial Japan had invaded Manchuria and China and kept going despite backlash from the League of Nations.

How did the Navigation Acts affect the colonies?
-Colonists could only trade with England.
-Colonial merchants grew wealthy with additional gold and silver.
-Trade with other countries increased.

Answers

Answer:

How did the Navigation Acts Affect the colonists? it directed the flow of goods between England and the colonies. It told colonial merchants that they could not use foreign ships to send their goods, even if it was less expensive. ... This led to smuggling because the colonists ignored the laws.

Explanation:

Answers^^^

Match each of these words with the phrase that best defines it

kamikaze

to place something or someone in a

position that is difficult to change

stronghold

to cause someone to lose hope

atomic bomb

a Japanese pilot who attempted to

crash his plane into an enemy ship

demoralize

a secure place

entrench

a powerful bomb that splits an atom

of uranium or plutonium

Correct!

Dann

Answers

Answer:

Kamikazes: a Japanese pilot who attempted to crash his plane into an enemy ship.

Stronghold: a secure place

Atomic Bomb: a powerful bomb that splits an atom of uranium or plutonium

Demoralize: to cause someone to lose hope

Entrench: to place something or someone in a  position that is difficult to change

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