Which answer below correctly identifies the type of change and the explanation when magnesium comes
into contact with hydrochloric acid?
o physical change because no color change occurred
physical change because the observation of a gas forming is evidence of a state change, which is
reversible
chemical change because a temperature change occurred, a solid disappeared, and a gas was
produced
chemical change because two substances were mixed, which always results in the formation of a
new substance

Answers

Answer 1

Answer:

Chemical change because a temperature change occurred, a solid disappeared, and a gas was produced.

Explanation:

Answer 2

Chemical change because a temperature change occurred, a solid disappeared, and gas was produced.

What is a chemical change?

Chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. These processes are called chemical reactions and, in general, are not reversible except by further chemical reactions.

Mg + 2HCl → MgCl2 + H2

To know more about chemical change refer to :

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Related Questions

Active participation in civic life has its philosophical basis in ‘the common good’, which asserts which of the following selections? Answers: A: All men are created equal B: Very little of our lives is affected by the environment and community C: The cooperative efforts of citizens is the best way to ensure the betterment of all D: Individual achievements is the best goal in life.

Answers

Answer:

Option C assert that 'Active participation in civic life has its philosophical basis in ‘the common good’

Explanation:

If all men and women in a society participate actively in civic life or be co-operative with each other socially, then such arrangements in society are beneficial for all as all are there to help each other. Such a cohesive bonding in a society is not possible if in case people do not involve with each other (as per option B), consider one self (as presented in option D) and Only believe that all are equal but do not do any thing (as presented in option A).

Hence, option C is correct


When President James Monroe wanted advice on the new Latin American nations, he turned to

Answers

Answer:

The answer is Thomas Jefferson and James Madison.

Explanation:

Mark the brainiest please!!!!!!!!!!!!!!

Answer:

James Madison + Tomas Jefferson.

Could you please help me with the two most recent questions of mine on my page? I will give u brainliest and 20 points! :))) X

The presidential power to
a bill is one example of a check.*

Answers

Answer:

Checks and Balance.

Explanation:

Checks and Balance is defined as "A system that allows each branch of a government to amend or veto acts of another branch so as to prevent any one branch from exerting too much power."

What two things got TR angry by the new President that he helped to pick, Pres. William Howard Taft?

Answers

Answer:

resident William Howard Taft established a foreign policy known as dollar diplomacy because enabled the use of the country’s economic superiority. The dollar diplomacy aimed to further America’s aims in Latin America and East Asia by guaranteeing loans made to foreign nations

Explanation:

How was the passage of the GI Bill related to the rise of America
suburbia?

Answers

They worked together and fought for rights

How important were merchants to the first british empire?

Answers

Answer: Merchants funded the trading companies that evolved into plantation colonies. They were the ones who took the first chances, and without them, the empire could not have existed. Some traders were active in the slave trade, which was crucial to the production of sugar and tobacco in the colonies.

Answer:

So the trading companies that went on to become the plantation colonies were financed by merchants. It was they who took the early risks and without them the empire might never have happened. Some merchants were involved in the slave trade, which was integral to the growing of sugar and tobacco in the colonies.

Explanation:

Hope i helped answer you question.

What geographic challenge led to the use of island hopping? (WWII)

Answers

To gain territory in the Pacific is the right answer. Explanation: Island Hopping was a military tactic in the Pacific War employed by the Allied governments against the Axis governments (Japan, in particular) during the Second World War.

How did La Raza use resistance to live up to our idea of freedom, equality, and democracy?

Answers

After demanding both political and military action on removing Native American Indians from the southern states of America in 1829, President Andrew Jackson signed this into law on May 28, 1830. Although it only gave the right to negotiate for their withdrawal from areas to the east of the Mississippi river and that relocation was supposed to be voluntary, all of the pressure was there to make this all but inevitable. All the tribal leaders agreed after Jackson’s landslide election victory in 1832.

It is generally acknowledged that this act spelled the end of Indian Rights to live in those states under their own traditional laws. They were forced to assimilate and concede to US law or leave their homelands. The Indian Nations themselves were force to move and ended up in Oklahoma.

The five major tribes affected were the Cherokee, Chickasaw, Choctaw, Creek, and Seminole. These were called The Civilised Tribes that had already taken on a degree of integration into a more modern westernised culture, such as developing written language and learning to read and write.

It overturned the more concessionary attitude of ex-President George Washington that aimed for ‘acculturation’ after debate with the Indian Nations. Even in those distant times, there was heated debate in congress with such famous names as the future president Abraham Lincoln and Davy Crockett speaking out against it. Now it is considered with serious negativity by all involved.

Why is it important that the federal and state governments have separate as well as shared powers? Answer the question in 3-5 quality sentences. Provide examples.

Answers

Answer:

Federalism is the separation of power that exists between the states and the federal government. In America, the subject of federalism is one that comes up quite often. This is as a result of the constitution. The tenth amendment is in the constitution and it empowers the state government with any power that is not given to the federal government. There is always a conflict when dealing with the supremacy clause that is in the sixth article.

The clause got interpreted to imply that federal law exceeds state laws. So why is federalism important? We will take a look at some of the reasons why this system is much debated. The American constitution is such that it gives powers to the federal government far beyond the states. The constitution appears to be more concerned about what the states cannot do. Federalism is a system that separates governmental powers into state and federal governments.

Explanation:

The American government attempted to purchase Texas from Mexico, prior to the battle of the Alamo. Please select the best answer from the choices provided: T or F

Answers

Answer:

The answer is true

Explanation:

Hope this helps

According to Brown vs. Board of Education when were public schools and universities supposed to integrate?

Answers

Answer:

Brown v. Board of Education of Topeka was a landmark 1954 Supreme Court case in which the justices ruled unanimously that racial segregation of children in public schools was unconstitutional.

Explanation:

hope it helped

Can Anybody Do This For me

Answers

sorry no!!!!!!!!!!!!!!!!!!!!!!

Which phrase best completes the diagram?
Achievements of
PLEASE HELP QUICK. Postclassical China
?
Experienced huge
population growth
Invented gun-
powder weapons
A developed advanced at
B. Cut off all foreign trade
C. Conquered Japan
D. Founded Zen Buddhism

Answers

Answer: Developed advance art

Explanation: I took the quiz

which statements describe the economy of the American South before the Civil War?

Answers

Answer:

A,C,D

Explanation:

A: Was Based On Cotton

C:Depended On Cotton

D:elied On A System Of Slave Labor

Question 6 (5 points)
What were the first steps Nazis took to limit Jewish people's freedom?
PLEASE HELP!!

Answers

Answer:

raided there cribs

Explanation:

cause

Answer:

Explanation:

yeah what the other guy said raided there homes and put them into camps for labor work

According to the video, what part did technology play in the Cuban Missile Crisis?

It allowed the United States to take down Soviet air bases in Cuba.
It made it possible for the United States to identify missile sites in Cuba.
It helped the United States prepare troops for a possible invasion of Cuba.
It helped the United States communicate with spies who were stationed in Cuba.

Answers

Answer:

B

Explanation:

b

b

b

b

b

b

Answer:

b

Explanation:

the guy above is correct

Who were the facist leaders of Germany, Italy and Spain during WWII?

Answers

Answer:

Adolf Hitler in Germany, Benito Mussolini in Italy, and Francisco Franco in Spain

Explanation:

Adolf Hitler was an Austrian-born Dictator of Germany who implemented Fascism and caused the Holocaust. Benito Mussolini supported Hitler and Germany in World War II, but after he was overthrown and assassinated.  Francisco Franco organized the revolt in Morocco, which led to the Spanish Civil War and won it after three years of fighting.

Which abolitionist does this headline describe?

Answers

that would be B. Angelina Grimké!

Answer:

C. William Lloyd Garrison

Explanation:

It will be in diffrent order but the answer is still William Lloyd Garrison

I need help with this assignment please

Answers

Answer:

its c

Explanation:

:)

At acient who was the king in kandyan kingdom​

Answers

Answer:

The Kingdom of Kandy was a monarchy on the island of Sri Lanka, located in the central and eastern portion of the island. It was founded in the late 15th century and endured until the early 19th century.

Initially a client kingdom of the Kingdom of Kotte, Kandy gradually established itself as an independent force during the tumultuous 16th and 17th centuries, allying at various times with the Jaffna Kingdom, the Madurai Nayak dynasty of South India, Sitawaka Kingdom, and the Dutch colonizers to ensure its survival.

From the 1590s, it was the sole independent native polity on the island of Sri Lanka and through a combination of hit-and-run tactics and diplomacy kept European colonial forces at bay, before finally succumbing to British colonial rule in 1818.

The kingdom was absorbed into the British Empire as a protectorate following the Kandyan Convention of 1815, and definitively lost its autonomy following the Uva Rebellion of 1817.

Ellis Arnall was the youngest person to hold what position at this time in history?

State Senator

Governor of Georgia

U.S. Representative

State Supreme Court Justice

Answers

Answer:

Governor of Georgia

Explanation:

Answer: He was the Governor Of Georgia

Explanation: he just was, thats rlly it

What would happen if every nation consumed oil at the same rate as the United States?
A Developing nations would be able to have as many cars as the United States
B Nations would consume oil at the same rate as it is pumped out of the ground.
C Supply would outstrip demand, and an oil surplus would slowly develop.
DThere would not be enough oil to meet world demand.

Answers

Answer:

A Developing nations would be able to have as many cars as the United States

What is the enduring legacy of "In Flanders Field" today? Victory Bonds are still purchased and the money is used for military families. Very popular in academic teaching and discussing in Canadian literature. The poem is still popular today. It is often quoted around Remembrance Day (Veterans Day in the U.S.). Wearing silk poppies around Remembrance Day, especially in Commonwealth countries, is still a tradition. Many people still support the wives and children of the fallen soldiers in these battles.

Answers

Answer:

The poem is still popular today. It is often quoted around Remembrance Day (Veterans Day in the U.S.). Wearing silk poppies around Remembrance Day, especially in Commonwealth countries, is still a tradition.

Explanation:

"In Flanders Fields" is a war poem written during the First World War by Lieutenant-Colonel John McCrae. The poem shows the grief over the graves of soldiers who had died on Flanders' battlegrounds. Today the poem is used for remembering the soldiers who sacrificed their lives for the nation. The poem is popular because of its poppies as they represent soldiers. People also wear silk poppies to show respect to soldiers and their loved ones who died in the war.  

hi need help plz **** help me on my assignment plz help
QUESTION IS Write 2 sentence that you remember
learning from the Power Point
Reconstruction America.

the PowerPoint is below

Answers

Answer: that northern leaders had different ideas for dealing with many issues and challenges of restoring the southern states to the union.

The civil war was the most costly war in american history in terms of total devastation. brainly

Explanation:


Which of the following was a result of the War of 1812

Answers

Answer:

American patriotism, weakened Native American resistance, and U.S. manufacturing grew.

Explanation:


By 1918 the USA had become the world's wealthiest and most powerful country, yet
in 1929 it was the source of the Great Depression.
In the light of the above statement, explain briefly why the USA was so rich and
powerful, and then explain the causes of the Great Depression in 1929.

Answers

The correct answer to this open question is the following.

Although there are no options attached we can say the following

It is true that by 1918 the USA had become the world's wealthiest and most powerful country after all the loans and deep debt of western European countries resulted from World War I.

However, in 1929,  the United States was the source of the Great Depression.

So as we have mentioned, the United States was so rich for the loans made during World War I, the size of its industry, and that western Europeans had a deep debt and owed too much money to the US.

During the 1920s, the US lived a fantastic economic period known as "the Roaring 1920s," in which people buy many necessary and unnecessary things, mostly on credit. We are talking about cars, houses, and electro domestics.

That generated a deep debt. On the other hand, the speculation of investors in the stock market created a bubble that could not be contained. And on October 29, 1929, the United States marked crashed, and this represented the beginning of the Great Depression, starting the worst economic crisis in the history of the United States.

After the US stock market crashed, millions of Americans lost their jobs, companies broke, and banks went into bankruptcy.

please help me
What event gave Austria-Hungary an excuse to attack Serbia (and SPARKED WWI)?

Answers

Answer:

The immediate reason for Austria's ultimatum was the assassination of Archduke Franz Ferdinand and his wife Sophie in Sarajevo, Bosnia on June 28, 1914 by the Bosnian Serb nationalist, Gavrilo Princip.Jul 23, 2014

Explanation:

i really hope it helps

Which European group of people did the Rozwi drive out of Southern Africa in the
late 1600s?
A Dutch
B French
C Portuguese
D British

Answers

A is the anwser to this.

What has been the impact of the new frontier and great society?

Answers

Impact for Great Society: The main goal was the total elimination of poverty and racial injustice. New major spending programs that addressed education, medical care, urban problems, rural poverty, and transportation were launched during this period.

Impact for Great Society: The major proposals included establishing a volunteer Peace Corps to assist underdeveloped countries, raising the minimum wage and broadening its coverage, raising Social Security benefits, providing medicare, providing federal aid to education, creating a federal department of urban affairs, and giving greater powers

PLEASE HELP!!!!!

The Fourteenth Amendment to the Constitution says that all citizens, regardless of race, have equal protection under the law. In an 1896 decision, Plessy v. Ferguson, the Supreme Court ruled that segregation of races was not unconstitutional as long as equal services were provided to people of all races. This decision was overturned in Brown V. Board of Education. What are the cases examples of?
A.
Both cases are examples of judicial activism.
B.
Plessy v. Ferguson is an example of judicial restraint and Brown V. Board of Education is an example of judicial activism.
C.
Plessy v. Ferguson is an example of judicial activism and Brown V. Board of Education is an example of judicial restraint.
D.
Both cases are examples of judicial restraint.

Answers

Answer:

I think your answer would be b

Explanation:

because after Brown v. board of education segregation in schools started to deplete

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Show your work please! The given lines are rotated 90. Which choice describes the lines resulting from the transformation?A)intersectingB)parallelC)perpendicularD)skew what is the mass of 1.2 x 10 atoms of C Find the measure of 7 Which one of your body cells carries proteins that determine your blood type? 1) All of your cells 2)Skin cells 3) Red blood cells 4)White blood cells Please help- will give brainlist. I would appreciate if you told me how you got the answer but you dont have to which part of the human body is the most important part? PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! James looked at a picture of rock layers while studying how scientists determine the ages of rocks. He looked at the variety of layers and understood that the law of superposition indicated something about the rock layer ages. What does the law of superposition indicate? A. The rock layers can change their position and push younger rock layers under older rock layers. B. The rock layers can change their position and push older rock layers under younger rock layers. C. The rock layers on top are the youngest layers and the lower rock layers are the oldest layers. D. The rock layers on top are the oldest layers and the lower rock layers are the youngest layers. How many times greater is the value of the 3 in 3,499 than in 6,399 Which equation best represents the relationship between x and y in the table below? which scenarios illustrate blological contamination de food?A food handler uses seafood froman unapproved source in a salad,A food handler decorates cakes with strawberriesthat were soaked in soap water.A food handler serves fruit saladthat has cherry pits.A food handler uses minced chickenthat has tiny bones in it.A food handler serves meat thatturns out to have parasites.Biological Contamination Compare and contrast the characteristics of acids and bases. Give threesimilarities and three differences. use COMPLETE SENTENCES for full points.* Which expression could be used to evaluate the expression below? 1. How many party systems have been active in America since the United States was founded? 2. How many political parties were campaigning for their candidates during the first election under the new Constitution, in other words, in 1788? 3. What were Americas first two political parties? 4. Party divisions werent prominent from 1815 to 1824. What is this period of time sometimes called? 5. How did the new political party known as the Whigs first develop? 6. Where did the modern Democratic Party come from?7. What features of politics still seen today were introduced into the Democratic Party in the early 1800s?8. What did the election of William Henry Harrison suggest was an important aspect of a presidential candidate?9. What issue more or less destroyed the Whig party?10. Starting with which president were all elections to follow basically ones between Democrats and Republicans?11. What was one of the Republican partys earliest rallying cries?12. Which two groups were big supporters of the Democrats in the late 1800s?13. What new party emerged in the 1880s, and certainly by 1892?14. How did this new party end?15. What is generally true of third parties in American politics?16. What issue did the Socialist party help to make prevalent in the early part of the 20th century?17. When did the fifth party system of American politics begin?18. What group had voted Republican for decades but began to shift toward the Democrats under FDR?19. What is the main shift involved in the sixth party system, starting around 1968?20. In the current party system, what groups still reliably support the Democrats? Calculate the rms value. I will give Brainliestttt The variety of climate zones in Southern Africa createsa. extreme weather conditionsc. long wintersb. poor growing conditionsd. biodiversityPlease select the best answer from the choices providedBaCO Choose one conflict that appears in the reading and explain how it relates to Swift`s overall purpose. Waterpark Party what is the generalization ? refers to the complex designs, such as ovoids and split Us, that are the underlying components of Northwest Coast art.O a. PetroglyphO b. FormlineO c. GraphicsO d. Ravenstail