What do these two changes have in common?
using polish to remove tarnish from a silver spoon
salt and vinegar removing tarnish from a penny
Select all that apply.
Both are only physical changes.
Both are chemical changes.
Both are caused by heating.
Both are caused by cooling.

Answers

Answer 1

Answer: Both are chemical changes.

Explanation:

Tarnish can be defined as the product of the chemical reaction that occurs between a metal and a no-metal. The metal which is exposed to the moisture or get oxidized develop a thin layer called tarnish.  Copper, silver, brass, magnesium and other metals get tarnished.

The polish removes the chemical product of tarnishing and keeps the silver in silver spoon intact. This involves the chemical reaction.

Salt and vinegar are the ingredients of the chemical formulation which can remove the chemical product of the tarnishing from penny. This involves the chemical reaction.

Both polish and silver and vinegar can bring a chemical changes in the metal without introducing the physical change as they do not affect the physical structure of the metal.

Answer 2

Answer:

both are chemical changes and both conserve mass

Explanation:


Related Questions

1. An interest group is most likely to
A. nominate party candidates
B. veto proposed legislation
C. set government policy
D. lobby elected officials
2. A statewide poll of Marylanders showed wide difference in their reaction to issues such as crime, education, taxes, employment, and traffic. Which of these most likely had the greatest impact on the results of this poll? *
5 points
A. the number of registered voters in the state
B. the results of similar polls from surrounding states
C. the gender, age and ethnicity of the people polled
D. the political beliefs of government officials in the state
3. Why are the seats of the House of Representatives reapportioned every 10 years? *
A. to give interest groups more influence
B. to modify political party alliances
C. to account for changing populations
D. to create new communities
4. Which headline describes an action most likely to have a positive effect on a presidential candidate's campaign? *
A. "Campaign opinion polls fall for presidential candidate"
B. "Presidential candidate raises record amount of campaign funds"
C. "Presidential debate schedule announced for upcoming campaign"
D. "Interest group criticizes presidential candidate's record"
5. Which action would a special interest group take to gain support for a law proposed in Congress? *
A. meet with representatives to educate them about the bill
B. present the group's position in lawsuits heard in court
C. donate money to a presidential re-election campaign
D. endorse political party candidates for the state legislature
6. Which of these activities is most likely a part of the United States Census? *
A. polling experts to establish foreign policy
B. inspecting businesses to enforce safety laws
C. surveying homes to determine population figures
D. training workers to increase industrial productivity
Other:
7. Reapportionment is based on one of the following changes to the *
A. wealth of an area
B. boundaries of an area
C. population of an area
D. number of voters in an area
8. The major goal of a political party is *
5 points
A. to be a political watchdog of government institution
B. to inform citizens of important issues like healthcare and social security
C. to select candidates for the general election
D. to raise funds for candidates during the primary elections
9. Citizens have a political responsibilities in a democracy *
A. to vote in elections
B. to pay your taxes
C. to report to jury duty
D. None of the above
10. Which of these explains a difference between political parties and interest groups? *
A. Political parties evaluate government policy, while interest groups set government policy.
B. Political parties influence laws, while interest groups ratify laws.
C. Political parties address many issues, while interest groups usually focus on one issue
D. Political parties support candidates, while interest groups nominate candidates.
11. In the United States political process, special interest groups... (carefully read the choices) *
A. vote for candidates favoring their views
B. vote on bills favoring their cause
C. conduct voting in the House and Senate
D. supervise voting on election day
12. Which of these government responsibilities is most related to the United States Census? *
A. maintaining national defense
B. protecting the environment
C. ensuring fair political representation
D. establishing criminal justice procedures

Answers

A is the correct answer

An interest group is most likely to lobby elected officials. Option D is correct.

What is interest group?

A special interest group is a community within a larger organization that shares a common interest in the advancement of a particular field of knowledge, learning, or technology. Members work together to influence or produce solutions in their particular field and may communicate, gather, and plan conferences.

Further an interest group is a collection of people who band together with shared objectives in order to influence the government.

People can more easily find others who share their political views and mobilize for political action at the national level thanks to changes in the political environment and new technology.

Therefore an interest group of individuals who work together to influence public policy through lobbying and electioneering.

Learn more about interest group:

https://brainly.com/question/29807513

#SPJ2

what is 2+2 LOL bet you cant get it

Answers

I'm not the best at math, but, based on knowledge collected over the years,  I can confirm the answer is 3.

how are "worldview", "point of view", and "perspective" related?

Answers

Worldview is one's personal view of the world and how one interprets it while perspective is a view, vista or outlook.

Is being a finance manager stressful?​

Answers

Answer:

No not really, I did quit for a higher pay though.

Explanation:

I had a job as a finance manager.

What is the purpose of forming a claim when writing an argumentative essay?

to form a conclusion that can be supported with evidence
to form a preference on a topic that cannot be argued against
to form a theory that cannot be argued against due to the evidence
to form a personal opinion that does not need to be supported with evidence

Answers

Answer:

I think its to form a conclusion that can be supported eith evidence as it is an argumentive essay and those usually need evidence to back up what you say.

Explanation:

Answer:

a

Explanation:

Wavelength is measurable in .

A. Electromagnetic waves only
B. Mechanical waves only
C. Both electromagnetic and mechanical waves
D. Neither electromagnetic nor mechanical waves.

Answers

Answer:

C. Both electromagnetic and mechanical waves

Explanation:

Got it right

Wolfe is described as the first “imperial romantic martyr.” What is meant by that description?

Answers

Answer: A military reformer with the rank of general who was declared a martyr after his death.

Explanation:

This formulation is common in the literature when it comes to James Wolfe. He achieved a major military campaign against the French in Quebec in 1759. That victory was of great significance since the United States and Kanda's unification was won under British rule. Yet at the time of his victory, Wolfe was wounded in a decisive battle and succumbed to the consequences of the wounding, so that he was proclaimed the best soldier of Britain of the 18th century and declared a martyr.

Who was the Cherokee leader who was a friend of Houston's and made a treaty with him? *

Chief Bowles
Edwin Moore
William Goyens
Jose Navarro
Who was the mulatto who he

Answers

Answer:

Your answer is Chief Bowles.

Explanation:

Mark e as brainlest please

Which country was the target of the Embargo Act?
O A) Great Britain
OB) France
O C) Portugal
O D) Spain

Answers

Answer:A)Great Britain

Explanation:

Hope This Helps, can i be marked

brainliest plz? U_U

Jews were ordered to convert to Christianity or leave Spain by _____ .

I need answer ASAP

Answers

Force is the answer

Hope this helps

______ believe that social issues such as healthcare, education, childcare, and the environment benefit from stricter government involvement.

Answers

Answer:

Liberals

Explanation:

Liberals view in of government extremely believes that in government action is to achieve equal opportunity and equality for all. They hold the notion that it is the duty of the government to alleviate social ills and to protect civil liberties and individual and human rights.

They further exposes the role of the government to be able to guarantee that no one is in need. Liberal policies expressly shows that the need for the government is to solve problems.

Liberty is said to be appropriately served when government withholds involvement in matters concerning moral or personal values.

5. TRUE OR FALSE? Only men acted in ancient Greek plays.
explanation?

Answers

Answer:

True

Explanation :Ancient Greek theater began as a part of a festival for men only. At the festival of Dionysus Women did not act in plays and they were not supposed to be in the audience.

hope i helped

At the end of which era did the dinosaurs became extinct?
A Paleozoic
B Mesozoic
C. Cenozoic

Answers

Answer:

B. Mesozoic ..would be the answer

Why did the European system of colonialism create such a great desire for self-rule within the African people?
20 points
a.The European system of colonialism was based on inequality.
b.The European system of colonialism was based on equality.
c.The European system of colonialism showed great respect for the cultures of the native Africans.
d.The European system colonialism allowed the native Africans to control the best and most productive land on the continent.

Answers

Answer:

a my teacher told me

Explanation:

Which of the following statements about South Asia’s climate regions is true? A. South Asia is made up of a variety of climate regions, including very wet and dry regions. B. The only two climate regions found in South Asia are tropical wet and tropical wet and dry. C. South Asia is the only region with climate types that vary from arid to polar ice cap. D. The most dominate climate region in South Asia is tropical wet. Please select the best answer from the choices provided A B C D

Answers

The statement i.e. true about the climate regions of south asia should be Option A. it inclues wet and dry regions.

South Asia’s climate regions:

The climate of South Asia could be split into 3 basic kinds i.e. tropical, dry, and temperate.  Also it should be made up of various climate regions that involved various wet and dry regions. It can't be tropical wet and dry. Neither polar ice cap. Not the tropical wet.

Therefore, The statement i.e. true about the climate regions of south asia should be Option A. it inclues wet and dry regions.

Learn more about climate here: https://brainly.com/question/24038429

Answer:

a

Explanation:

Some members of President Washington's Cabinet were _________ to create a National Bank and expand the Central Government's power.

Answers

Answer: given power? I don’t know u didn’t give me a word bar or nothing

Explanation:

Before the printing press was invented in the 15th century, books in Europe were written by hand.
fact or opinion

Answers

Answer:

fact

Explanation:

because it doesn't say i or my

Answer:

fact

Explanation:

it uses facts as to when the press was invented

please awnser photo need quick

Answers

B

trust me i had the same one

where is India on map​

Answers

Answer:

India lies on the Indian Plate, the northern part of the Indo-Australian Plate, whose continental crust forms the Indian subcontinent. The country is situated north of the equator between 8°4' north to 37°6' north latitude and 68°7' east to 97°25' east longitude.

Explanation:

Which sentence is a fact?
Americans ought to see all of the united states before they travel over seas.

In terms of area, the United States is the third-largest country in the world.

Answers

Answer:

In terms of area, the United Stated is the third largest country in the world.

Explanation:

A Fact is a thing that is known or proved to be true and The United States IS the third largest country in the world and that is stating a Fact.

We have to make our mortgage payment on the first of the month, or we'll lose the house!

Critical

Utopia

Spare

Which definition fits best on this sentence? *gets it wrong will be flagged*

Answers

Critical is the answer !

type of government where representatives are elected by citizens

Answers

The answer is a Democracy. It's just a simple word. Hope that helps!

Recently, in the social media there's a lot of news that suddenly appear and make the netizens scared. As a student how you will identify between the real and fake news? *

Answers

Answer:

Explanation:

There are various steps that can be taken to determine if a piece of news is fake or not. For starters, check if the news outlet reporting this piece of news is a reputable outlet such as CNN or Wall Street Journal. Next would be identifying and researching the author of the news article. Check to see if the author has good credibility and reports only facts. The last big step that can be taken is to compare that piece of news with other news outlets to see if they have covered that same story. News spreads fast and if it is real and important it will be covered by many news outlets at the same time.

(Please help! I need this ASAP!)

The diagram above illustrates the compromise that helped guarantee the ratification of the U.S. Constitution of 1788. Which of the following is the best title for this diagram?

A. The Three Fifths Compromise
B. The Virginia Plan
C. The Great Compromise
D. The New Jersey Plan

Answers

B I thinkjdjfhrhdhcfhf

What parts of a plant are able to perform photosynthesis?

Answers

Answer:

chloroplasts

In plants, photosynthesis takes place in chloroplasts, which contain the chlorophyll. Chloroplasts are surrounded by a double membrane and contain a third inner membrane, called the thylakoid membrane, that forms long folds within the organelle.

Answer: chloroplasts

Explanation:In plants, the process of photosynthesis takes place in the mesophyll of the leaves, inside the chloroplasts. Chloroplasts contain disc-shaped structures called thylakoids, which contain the pigment chlorophyll

Describe one way in which the environments physical characteristics affected colonial economic activities

Answers

Answer:

- Existence of rivers is used as water sources method of distribution

- Existence of resources for material.

Explanation:

Colonial economic activities mostly consist of agricultural and mining sectors. Many agricultural fields were build near the river so it is easy for farmers to obtain water to grow their crops and use the river as a transpiration method to sell their products to other territories.

On top of that, Mining businesses established on the region that possess high amount of caves that contain previous metals. (such as gold, Silver, Iron, Coppers, etc)

Does anyone know this answer? It’s very simple!! :D

Answers

Answer:

caribbean sea

Explanation:

because there are a lot of popular islands there as well as different breeds of sea life

Answer:

Caribbean Sea

Explanation:

Its the only body of water in the choices.

please awnser question in photo need fast

Answers

Answer:

Correct answer is exporting more than you import.

Explanation:

The first option is the only correct one because the theory of mercantilism says that country can strengthen its economy only if it increases its export and decreases import. On the other side, this theory also focuses on the competition between the nation when it comes to economy.

All other options are  wrong as they are not connected with this theory at all.

Lilly is moving to Orlando from Alaska. She cannot decide what clothes to bring with her and what to leave behind. Which of the following data tables would be most helpful to Lilly in making her clothing decision? Explain why.

Answers

well lilly, the summers in orlando are long, hot, oppressive, wet, and mostly cloudy and the winters are short, cool, and partly cloudy. weather in alaska are usually cloudy with some rain showers throughout the year with average summer temperatures ranging from 40°F to 60°F. so, you’re moving from a warm place to somewhere chilly. obviously bring sweaters, jackets, hoodies, jeans, and anything to keep yourself warm. leave behind swimsuits, shorts, and anything unnecessary.

hoped this helped?

Why is trumps impeachment important? And what impact does it have on the world around us?

Answers

His impeachment is important because it effects the rest of us.
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