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

What type of work did CORE do during the civil rights movement? Check all that apply.

Answers

Answer:

Congress of Racial Equality (CORE) an interracial organization came together to seek change through nonviolent means

Explanation:

What power does the U.N. Security Council to stop actions they disagree with?

Answers

Answer:

D

Explanation:

Answer:

The Security Council's five permanent members, below, have the power to veto any substantive resolution; this allows a permanent member to block adoption of a resolution, but not to prevent or end debate.

Explanation:

PLEASE HELP!!!!
ASAP!!!
I WILL GIVE BRAINLY!!!

Answers

Answer:

I think D is right Im srry if its not but i think ur right

Explanation:

Please help!! It would mean so much! I will mark you as brainliest!

Look at the map of Africa. this map shows European countries and their territorial claims in
Africa on the eve of WWI.
How might the fact that some countries in Europe were late to gain colonies, and got
undesirable smaller pieces of territory.....
How might this lead to tension or cause a conflict? What do you think will happen?
Remember that Germany is the fastest growing industrial power in Europe at the time and
needs resources.

Answers

Answer:

The late countriea qould want to expand into diaputed territories and then evwntually make contact with Germans. The Germans want to solidify, yet expand their power, so they will make alliea with neighboring tribes and conquer foreign enemies such as the French and British

Which best explains why the Allies employed the Europe First strategy during World War II?

Answers

The Allies wanted to ensure that Germany did not continue to conquer European territory. ... More nations in the world began experimenting with atomic weapons.

AND Why did the allies propose a Europe First strategy?
Explanation: The Allies embraced an Europe First methodology since they trusted that Nazi Germany and Italy represented a more prominent military danger. The United States had various pre-war plans drawn up that managed what to do in a speculative war with each real power.

Question for you .

Do you think it is okay for a 13 year old female too get a tragus piercing..?

Answers

Explanation:

yes it's only on the ear and its self expression.

I will give BRAINLIST and thanks
Please help me it’s due in 7 minutes

Answers

Answer:

I would say the first one would be Europe to America.

Second Question would there be the second bubble and the third one.

Hope this helped.

Explanation:

The first one hopes this helps you

HELP!!!!!!! if link will report!! I am timed Please help!!!

Answers

Answer:

Top one: Appolo

Bottom one after that: polytheism

Bottom one after that: Zeus

Bottom one after that: Athena

Bottom one after that: epic

Bottom one after that: Trojan War

Bottom one after that: fable

Bottom one after that: Cyclops

Bottom one after that: Aesop

ENJOY YOUR FREE A+ AND DON'T FORGET TO GIVE BRAINLIEST!

Answer:

The top one is Apollo, the next one after that is polytheism, then the one after that is Zeus, Next is Athena, then epic, then the one after that is Trojan War, after that it should be fable, then Cyclops, then the last one is Aesop.

I think that's it, hope you get it :)

How was the treatment of asian contract laborers?

Answers

Answer:

The indentured workers sought to escape poverty and famines that were a frequent occurrence during the period of British colonial rule in India. But given the high levels of illiteracy, few workers understood the terms of the contract they put their thumb imprint to (in lieu of a signature, as they could not write). Many were commonly misled about where they were departing for and the wages they would receive.

Explanation:

if correct pls mark brainliest

When a juvenile is caught committing a crime, he or she is taken into (blank) by the police

Answers

Answer:

custody not jail

Explanation:

You cant put some one in jail right when you get them they get taken into custody first

What was significant about Missouri, Kentucky, and West Virginia?
A. They were slaveholding states that remained with the Union.
B. They were key manufacturing states that remained with the Union.
C. They were no-slaveholding states that sided with the Confederacy.
D. They were neutral states that were taken over by Confederate troops.

Answers

Answer:

D

Explanation: They were neutral states that were taken over by Confederate troops.

Travel on America's rivers increased after which year?
1784
1781
1776
1700

Answers

Generally, the increase in travelling by America's rivers happened after the year 1784.

What is the purpose of the America's rivers?

The America's rivers are basically used for transporting people and goods from one way to another.

For instance, the Louisiana Purchase in 1800 allows the use of Mississippi waters for transportation purpose.

Hence, the increase in travelling by America's rivers happened after the year 1784.

Therefore, the Option A is correct.

Read more about America's rivers

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How did the Mexican War encourage the sectional crisis in the US in the late 1840s?

A)Proslavery and antislavery groups disagreed over whether the lands
acquired in the war should be open or closed to slavery.
B)Mexico was threatening to invade Texas and bring about an end to slavery
C) Mexican-produced cotton was increasing in competition with the South
and was, in turn, increasing the demand for Southern slaves.
D)Mexico was only willing to sell lands to the United States if they would be
closed to slavery.

Answers

Answer: A) Proslavery and antislavery groups disagreed over whether the lands acquired in the war should be open or closed to slavery.

Explanation:

what is the message?​

Answers

This is just an opinion, but I think it's someone falling down the road of drinking and he died from over drinking

Hope it helps

What long-term effects of the New Deal can still be felt today?

Answers

Answer:

The new deal was created because of the Great Depression. The main idea was to restore a sense of security as people went back to work. it made framework for a regulatory state that could protect interests of all Americans; rich and poor. The New Deal helps us now because people can rely more on the federal government during times of economic distress. For example many people have lost their jobs because of corona but thankfully with the new deal many people are getting stimulus checks to help them out.

Explanation:

The long-term impact of the New Deal can be the dependence of people on the federal government in the scenario of a distressed economy.

What was the Great Depression?

The Great Depression was the scenario of economic distress in the year 1929 and lasted till the year 1939.

New Deal referred to the deal done during the times of the Great Depression. This was done in order to reinstate a feeling of security for the citizens of the US country at their workplace and create a political structure that protects the interest of all US citizens irrespective of their richness or poverty.

Therefore, the people of the US country can freely depend on the federal government if the economy of the country gets distressed.

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During Viking raids the Irish would sometimes take ______ refuge in​

Answers

Answer:

peace

Explanation:

I need help ASAP Please and no links, please
How were Americans' rights violated during the era of McCarthyism?

Answers

Answer:

Explanation:

During the McCarthy era, hundreds of Americans were accused of  things they didnt do.

What did Protestants protest?
a. Catholic Church meeting times b. Catholic Church corruption
c. Medici Family d. Luther’s ideas

Answers

Answer:

d Luther's ideas .............................

Answer:

B

Explanation:

They did a lot that went against the Churches own teachings. Such as, the payment to enter heaven, using that money for things other than the church, and forcing you to do rituals. The Protestants wanted for people to be able to have "Faith alone" instead of going through the church. The bible was even printed and translated so more people could read it and it wasn't just available to the Pope.

where is the highest bluff on on the Mississippi river?

A) Fort Defiance state park
B) Gull point state park
C) Pikes Peak state park
D) Red haw state park

Answers

Answer:

C) Pikes Peak state park

Explanation:

hope this helps

According to Daoists, __________ is the key to nature running harmoniously.

Answers

Answer:

Explanation:

doing nothing

correct me if im wrong!!!!!!!! sorry if i am

Answer:

Doing nothing

Explanation:

Is this an example of indirect or direct characterization? Justify your answer. "That night, she slept with the letter under her cheek."

Answers

Answer:

Indirect Characterization

Explanation:

The Author isn't directly describing the character. Rather, They are showing her character through her actions.

Indirect characterization

The book of _____________ is considered one of the greatest prophetic books in the Bible. Answers . Isaiah . Leviticus . Malachi

Answers

Explanation:

major prophet books in christianity are Isaiah, Jeremiah and lamentations

Answer:

Isaiah

why did more northerners than southerners know how to write?

Answers

Answer:

because the Northern states were more educated and they were more industrialized schooling systems, northern cities establishes free public schools

Explanation:

What foreign powers conquered and controlled Egypt after the reign of Ramses II?

Answers

Answer:

Alexander the Great invaded Egypt with his mixed army of Macedonians and Greeks

The virus that President Roosevelt contracted made his personality more relatable to the American public by exhibiting..?

A. optimism and sympathy with those that were out of work

B. intensity

C. stubbornness and rejection of those that were out of work.

D. anger toward those that were out of work

Answers

I think it’s c or d!!!

Compared the Inca to the Aztec and Maya peoples. How did Inca adapt to theirs environment differently than the Aztecs and Mayan?

Answers

They adapted to their environment by using terrace farming, which was very important. Terrace farming is when they cut steep hills and they would build rope bridges to cross the mountains.

Why did industrialists favor America's expansion to new territories?
1:They wanted to increase the nations prestige
2:They wanted military bases
3: They wanted cheap, raw materials
4:They wanted to spread their faith​

Answers

Answer: 3 they wanted cheap raw materials

Explanation:

Industrialists needed raw materials like mineral sand wood from the expanded territories to use in their factories

They wanted cheap, raw materials industrialists favor America's expansion to new territories. Thus option (B) is correct.

What is the territory?

The term territory refers to that, a certain area which is area that's owned or under the control of someone is called a territory. The territory is also referred by the area subject to the sovereignty, control, or jurisdiction of a state or other entity

As many industrialists favor America's expansion to new territories, Farmers argued that colonial expansion would open up new markets for their goods. Military and economic interests were intertwined.

As a result, There were many industrialists are there as a new colony of the potential sources is cheap and the Raw material.

Therefore, The right option (B) is correct

Learn more about territory here:

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France set up New France as a new colony in A. 1633 B. 1533 C. 1733​

Answers

Answer:

I think Its B

Explanation:

Match these items.

1. Solomon's brother
a. Abiathar
2. a prophet
b. Hadadezer
3. a philosophical system
c. vanity
4. king of Damascus
d. Rezon
5. the high priest
e. rationalism
6. emptiness
f. Absalom
7. king of Edom
g. Joab
8. king of Zobah
h. Nathan
9. the chief of the guard
i. Hadad

Answers

??

Explanation:

I s this question related to history . in which chapter does it lies??

Answer:

9 Joab

1 Absalom

5 Abiathar

4 Rezon

6 vanity

2 Nathan

7 Hadad

3 rationalism

8 Hadadezer

Explanation:

sana nakatulong

Hope this helps

What fort will be the focus of the British naval attacked?

Answers

Answer:

Fort Henry

Explanation:

Preparing Fort McHenry to receive an all-out naval attack by the British Navy fell on the shoulders of Major George Armistead. Working at a frantic pace, he called up reinforcements, ordered additional supplies such as food and ammunition, oversaw the training of recruits and worked directly with city leaders and militia units to develop battle plans.

In the bombardment

Throughout the 25-hour bombardment Armistead directed the fort's defenses and inspired the troops to keep morale high. One eyewitness during the battle remarked "He (Armistead) was everywhere at once." From fifteen to eighteen hundred shells were fired by the British and Armistead wrote that "A few of these fell short. A large proportion burst over us, throwing their fragments among us and threatening destruction." Direct casualties were four soldiers killed and 25 wounded.

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