what clue can be used to identify a chemical reaction?

Answers

Answer 1

Answer:

transfer of energy

Explanation:

Four possible clues to chemical change include a transfer of energy, a change in color, the production of a gas, or the formation of a precipitate.


Related Questions

Why does every mom wants their daughters to get married? And why do they think it's a accomplishment of life if their daughter's marry? PLEASE ANSWER WITH FULL EXPLANTIONS.

Answers

Answer:

because they want grandbabies.

Explanation:

They want u to get married so u can have kids since they can't have kids

How do the senses used in the excerpt from "Digging" and the haiku affect a reader's understanding and interpretation of each? The excerpt from "Digging" relies much more heavily on images of nature to convey its main idea than the haiku does. The excerpt from "Digging" uses lines of equal length throughout, while the lines of the haiku are of varying lengths. The excerpt from "Digging" discusses the relationship between writing and farming, while the haiku only discusses nature. The excerpt from "Digging" focuses on sound devices to reveal its story, while the haiku focuses on visual imagery.

Answers

The senses are used to create imageries and feelings that make it easier for a reader to understand a text. In the excerpts from "Digging" and "The Haiku" different uses of the senses apply because;

The excerpt from "Digging" focuses on sound devices to reveal its story, while the haiku focuses on visual imagery.

In the excerpt from "Digging", words that appeal to the senses of sound are used. Examples are, squelch, slap, and curt cuts. A curt cut is a blunt cut. These appeal to a person's sense of hearing.

In "The Haiku" visual imagery is used as the reader is made to imagine a chrysanthemum plant that looks sickly but is somehow budding.

Therefore, option D provides an accurate difference between the usage of the senses in the two texts.

Here is the excerpt:

From "Digging"

The cold smell of potato mould, the squelch and slap Of soggy peat, the curt cuts of an edge Through living roots awaken in my head. But I’ve no spade to follow men like them.

Read the haiku by Bashō.

Sickly, but somehow the chrysanthemum is budding.

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Answer:

D

Explanation:


Which conclusion about proposed changes in transportation do
both speakers support?
A
Changes would affect citizens' health.
ОВ. Changes would increase with federal grants.
Ос. Changes would improve economic conditions in the
city.
OD. Changes would decrease traffic congestion
throughout the city

Answers

We can actually deduce here that the conclusion about proposed changes in transportation that both speakers support is: D. Changes would decrease traffic congestion throughout the city.

What is transportation?

Transportation is actually known to be a means by which people, goods and services move from one place to another. In other words, the movement of goods, services and people is known as transportation.

Transportation modes are seen in the air, land and water ways. Some of the means of transportation include:

VehiclesAirplanesBoatsShipsLorriesCanoesJets, etc.

Land transportation system has been known for its level of traffic congestion especially in urban cities and towns. This issue of traffic leads to delay in goods delivery and adversely affects the economy of any commercial state or country.

Thus, if something is not done to change the situation in the transportation system, many businesses and companies will suffer loss.

So, we see here that the conclusion about proposed changes in transportation that both speakers support is that changes would decrease traffic congestion throughout the city.

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how can you tell the difference between a primary research article and a scientific review article?

Answers

Answer:

A primary research article presents original research performed by the authors. A review summarizes the current research on a particular topic. Both types of articles are usually peer reviewed and many journals publish both.

Explanation:

what season does hail occur

Answers

Answer:

Spring

Explanation:

Answer/Explanation:

spring

Hailstorms can occur during the spring, summer or fall months. The majority of these storms appear between May and September.

Hail forms when strong currents of rising air, known as updrafts, carry droplets of water high enough that they freeze. This is why it can still hail in the summertime – the air at ground level may be warm, but it can still be cold enough higher up in the sky.

At what moment in the story does
the flashback begin? (What present
event triggers the flashback?) At what
moment in the story are we back in
present time? 습

Answers

Answer:

What is this question about?

Explanation:

I don't get it.

What are the two photographs that are on display in the chapel? *

Answers

Answer:

The most important artworks in the chapel are the frescoes by Michelangelo on the ceiling and on the west wall behind the altar. The frescoes on the ceiling, collectively known as the Sistine Ceiling, were commissioned by Pope Julius II in 1508 and were painted by Michelangelo in the years from 1508 to 1512.

https://www.britannica.com › topic

Sistine Chapel | History, Paintings, &

HELP IM TIMED!!!!!!!
Question 8(Multiple Choice Worth 5 points)
(LC)


STORIES OF USEFUL INVENTIONS, excerpt
By S. E. Forman

1911

THE MATCH

There never was a time when the world was without fire, but there was a time when men did not know how to kindle fire; and after they learned how to kindle one, it was a long, long time before they learned how to kindle one easily. In these days we can kindle a fire without any trouble, because we can easily get a match; but we must remember that the match is one of the most wonderful things in the world, and that it took men thousands of years to learn how to make one. Let us learn the history of this familiar little object, the match.

Fire was first given to man by nature itself. When a forest is set on fire by cinders from a neighboring volcano, or when a tree is set ablaze by a thunderbolt, we may say that nature strikes a match. In the early history of the world, nature had to kindle all the fires, for man by his own effort was unable to produce a spark. The first method, then, of getting fire for use was to light sticks of wood at a flame kindled by nature—by a volcano, perhaps, or by a stroke of lightning. These firebrands were carried to the home and used in kindling the fires there. The fire secured in this way was carefully guarded and was kept burning as long as possible. But the flame, however faithfully watched, would sometimes be extinguished. A sudden gust of wind or a sudden shower would put it out. Then a new firebrand would have to be secured, and this often meant a long journey and a deal of trouble.

In 1827, John Walker, a druggist in a small English town, tipped a splint with sulphur, chlorate of potash, and sulphid of antimony, and rubbed it on sandpaper, and it burst into flame. The druggist had discovered the first friction-chemical match, the kind we use to-day. It is called friction-chemical because it is made by mixing certain chemicals together and rubbing them. Although Walker's match did not require the bottle of acid, nevertheless it was not a good one. It could be lighted only by hard rubbing, and it sputtered and threw fire in all directions. In a few years, however, phosphorus was substituted on the tip for antimony, and the change worked wonders. The match could now be lighted with very little rubbing, and it was no longer necessary to have sandpaper upon which to rub it. It would ignite when rubbed on any dry surface, and there was no longer any sputtering. This was the phosphorus match, the match with which we are so familiar.


What does the author mean by “we may say that nature strikes a match”?
A. Matches were created by nature.
B. Matches did not help people.
C. Matches required natural chemicals.
D. Nature provided fire for humans.

Answers

Answer:

Matches required natural chemicals or nature provided fire for humans.

Explanation:

c or d option

20 characters.

If your father is a landlord and your mother is a landlady who are you? The child?

Answers

Answer:

the inheritor

Explanation:

What does the narrator emphasize about the readers response to the story in The Pearl

Answers

"The Pearl" is considered to be a parable; therefore, you would say that the main or central idea is actually the moral or message of the story. This moral is that people are sometimes so fixated on greed and becoming wealthy that they lose sight of what is important in life.

which poet’s first memoir was titled i know why the caged bird sings?

Answers

I Know Why the Caged Bird Sings, the first of seven autobiographical works by American writer Maya Angelou, published in 1969.

How can a non linear plot differ from a linesr plot

Answers

A linear plot consists of a series of events that have a clear beginning, middle and end in other words they are in chronological order. And nonlinear present the event in a non chronological order authors will use nonlinear plots to closer mimic the way the human memory works

Which evidence from "Hip Hop Planet" best supports the idea that some people have a hard time embracing hip-hop?

"There were no white people in the room, though I confess I wished there had been, if only to hide the paleness of my own frightened face."

"And on top of this loop, a kid spouted a rhyme about how he was the best disc jockey in the world."

"For the next 26 years, I high-stepped past that music the way you step over a crack in the sidewalk."

"Not since the advent of swing jazz in the 1930s has an American music exploded across the world with such overwhelming force."

"In doing so, I missed the most important cultural event in my lifetime."

Answers

Answer:

"For the next 26 years, I high-stepped past that music the way you step over a crack in the sidewalk."

Explanation:

In 'Any Human to Another," Cullen describes that when people share each other's grief, they gain some comfort
Which lines from the poem best convey this thought?
O "The ills I sorrow at / Not me alone / Like an arrow, / Pierce to the marrow
O "Your every grief / Like a blade/Shining and unsheathed / Must strike me down."
O "Let no man be so proud / And confident,/ To think he is allowed / A little tent"
"Your grief and minel Must intertwinel Like sea and river"

Answers

Paying attention to the words in the line of the poem can help us to understand the thought conveyed by the author. The line from 'Any Human to Another," where Cullen describes that when people share each other's grief, they gain some comfort is;

"Your grief and minel Must intertwine Like sea and river"

In this line from the poem, the poet shows that when his grief and another's meet through sharing, they intertwine like the sea and river. The sea and river share similarities because they connote peace.

So, when people share their griefs, they gain comfort.

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Which excerpt from "Freeway 280" by Lorna Dee Cervantes best exemplifies the theme of home and belonging? La casitas near the gray cannery, nestled amid wild abrazos of climbing roses and man-high red geraniums are gone now. But under the fake windsounds of the open lanes, in the abandoned lots below, new grasses sprout, Once, I wanted out, wanted the rigid lanes to take me to a place without sun, without the smell of tomatoes burning on swing shift in the greasy summer air. Maybe it's here en los campos extraños de esta ciudad where I'll find it, that part of me.

Answers

Answer:

Maybe it's here

en los campos extraños de esta ciudad

where I'll find it, that part of me

Explanation:

The excerpt from "Freeway 280" by Lorna Dee Cervantes that best exemplifies the theme of home and belonging is:

"Maybe it's here en los campos extranos de esta ciudad where I'll find it, that part of me."

What is a Theme?

A theme is a dominant message or principle that forms the foundation of the writer's text.

In the example above, the text "Maybe it's here en los campos extranos de esta ciudad where I'll find it, that part of me." is the part of the text that best exemplifies the theme of the text.

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Fertilizer adds missing chemicals back into the soil to make the soil more nutrient rich. These chemicals are needed for plants to survive and grow, and many of them are commonly found in the natural environment. How, then, can fertilizer also be a pollutant?

Answers

Too much of anything isn’t good.
So too many nutrients causes nutrient pollution where too many nutrients, mainly nitrogen and phosphorus, are added to bodies of water and can act like fertilizer, causing excessive growth of algae and polluting the water

Answer:

it can cause over nutrition which. is a deficiency in plants

53. 'Dust of Snow is based on the central idea that nature is (a) a great source of joy (b) a ball of fire (c) filled with pollution (d) a globe of bad people​

Answers

We are required to explain the phrase " Dust of snow"

Dust of Snow is based on the central idea that nature is "a globe of bad people"

Snow as used indicate something pure or clean. A thing without any stone or blemish.

Dust signifies dirty and bad occurrence.

So, it is safe to say that snow represent the globe which is pure and dust represent the bad people in it.

Therefore,

This means that as pure as the globe is supposed to be, it comprises of bad people who participate in actions that pollute the globe.

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The Adventures of Tom Sawyer crossword puzzle

Across

Down

3. this is where Tom hate to go

1. this is the person who Tom likes

8. this is the place that Tom, Huck, and Joe go to become 2. he is known as the redhanded

pirates

4. he is the antagonist

9. he is the one who made up the story

5. where was Becky's picnic

10. this is where the murder took place

6. he is the protagonist

7. What is the aunt's name

Answers

Answer:7 days ago — this is the person who Tom likes 8. this is the place that Tom, Huck, and Joe go to become 2. he is known as the redhanded pirates

Explanation:your welcome

Help help me help help plz plz reply help plz help help me

Answers

Answer:

cricket,

in fact,

The original bat,

today,

at first, ; later,

in the wipes,

throwing quickly a bowler,

yes,

for about 100 years,

in 1960, ; in 1986,

Why is it important to use a resource published within the past 10 years? (1 point)
O Older articles are not as interesting to readers.
o The author of the article might have a different opinion now.
o The author of the article might be more qualified now.
o Older articles might contain information that has changed.

Answers

Answer:

Older articles might contain information that has changed.

Explanation:

It is important to use a resource published within the past 10 years because Older articles might contain information that has changed. Option D is correct.

Why is it critical to use a resource that was released within the last ten years?

Proper resource use is critical for maintaining productivity because it prevents employees from underperforming, being overloaded by tasks, and burning out. Projects may be handled with more transparency, lowering the chance of oversights.

It is critical to pick a resource published within the last ten years because older publications may include outdated information.

A higher use of resources results in a higher ROI. It shows the date the author originally wrote the article. It informs the reader of the date the article was published online. It indicates when the article was most last updated. It indicates the date and time the researcher visited the article.

Therefore, option D is correct.

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Who are the characters in the book the cradle by Patrick Somerville

Answers

Answer:

Matthew Bishop

Marissa

Caroline

Matt

writer:[Patrick Somerville]

Hope so its correct

HELP IM TIMED!!!!!!!!!!
Question 2(Multiple Choice Worth 5 points)
(MC)


STORIES OF USEFUL INVENTIONS, excerpt
By S. E. Forman

1911

THE MATCH

There never was a time when the world was without fire, but there was a time when men did not know how to kindle fire; and after they learned how to kindle one, it was a long, long time before they learned how to kindle one easily. In these days we can kindle a fire without any trouble, because we can easily get a match; but we must remember that the match is one of the most wonderful things in the world, and that it took men thousands of years to learn how to make one. Let us learn the history of this familiar little object, the match.

Fire was first given to man by nature itself. When a forest is set on fire by cinders from a neighboring volcano, or when a tree is set ablaze by a thunderbolt, we may say that nature strikes a match. In the early history of the world, nature had to kindle all the fires, for man by his own effort was unable to produce a spark. The first method, then, of getting fire for use was to light sticks of wood at a flame kindled by nature—by a volcano, perhaps, or by a stroke of lightning. These firebrands were carried to the home and used in kindling the fires there. The fire secured in this way was carefully guarded and was kept burning as long as possible. But the flame, however faithfully watched, would sometimes be extinguished. A sudden gust of wind or a sudden shower would put it out. Then a new firebrand would have to be secured, and this often meant a long journey and a deal of trouble.

In 1827, John Walker, a druggist in a small English town, tipped a splint with sulphur, chlorate of potash, and sulphid of antimony, and rubbed it on sandpaper, and it burst into flame. The druggist had discovered the first friction-chemical match, the kind we use to-day. It is called friction-chemical because it is made by mixing certain chemicals together and rubbing them. Although Walker's match did not require the bottle of acid, nevertheless it was not a good one. It could be lighted only by hard rubbing, and it sputtered and threw fire in all directions. In a few years, however, phosphorus was substituted on the tip for antimony, and the change worked wonders. The match could now be lighted with very little rubbing, and it was no longer necessary to have sandpaper upon which to rub it. It would ignite when rubbed on any dry surface, and there was no longer any sputtering. This was the phosphorus match, the match with which we are so familiar.


What is the main idea of this text?
A. Firebrands were hard to keep lit.
B. Nature provided fire to early humans.
C. The history of the match is interesting.
D. The match made life easier for humans.

Answers

Answer:

The answer is the match made life easier for humans.

Answer:

D

Explanation:

You can most definitely find the main idea of a granted passage from the topic sentence which in this case talks about how matches were something humans couldn't light fire without and later goes into detail about who discovered the consisting elements and partitions of matches.

Can you give me ideas for my French project?
Writing the beginning of a detective story
Thank you for your time!

Answers

Answer:

    A catastrophe happened in Tempe, Arizona, on Saturday. Jane Doe, an 18-year-old University student who was a member of the Alpha Delta fraternity, drowned after sliding over the Tempe town bridge into the lake. Many in the ASU, Zeta Theta, and Phoenix communities, as well as his family and loved ones, are in grief after the young business major's death.

    On Sunday, with the body still missing, Jane's friend phoned Andy. He dispatched a psychic squad to find the dead. The one flaw with Andy's detective company is that all of his investigators are psychics who never go to crime scenes.

  Andy, a 60-year-old retired detective from the NYPD's Blue Division and the Phoenix Police Department, started his own detective agency in 2019. He used to "not believe in this psychic foolishness," but when a psychic helped him solve a case with the Phoenix Police Department, he changed his mind.  

Andy's primary objective was to locate missing persons in a variety of circumstances around the Valley. Initially, he struggled to persuade the police to take any of his 100 hired psychics seriously. However, he said that as their success increased, they acquired the respect and confidence of the Valley's police departments and detective organizations.    

 Esmerelda Rowena, a 30-year-old psychic who can contact with the dead, solved the Jane Doe case. “Esmerelda Psychic Readings” is her psychic company in Sedona, Arizona. She joined Doe's agency because she had "saw many horrible deaths." After conversing to the dead, Rowena learned what happened to Jane that night. “She was a troubled young woman with a great future, but this sad occurrence lost her life,” she added.  

   Sammy, Jane's college buddy, was grieving and seeking answers. He said Jane disappeared at a Mill Avenue pub. “I assumed she left with a male,” he said. This is when Sammy called Andy's agent. When Rowena discovered Jane, Sammy praised the psychics. After the incident, Sammy promised to be more careful with friends. Funeral was held out at sea.

Pls help me I’ll give u Brainliest

Answers

Answer: D and B

Explanation: I think sorry if im wrong

Read the excerpt from "The Gift of the Magi" by O. Henry. What is the tone of the opening passage? One dollar and eighty-seven cents. That was all. And sixty cents of it was in pennies. Pennies saved one and two at a time by bulldozing the grocer and the vegetable man and the butcher until one's cheeks burned with the silent imputation of parsimony that such close dealing implied. Three times Della counted it. One dollar and eighty- seven cents. And the next day would be Christmas. There was clearly nothing to do but flop down on the shabby little couch and howl. So Della did it. Which instigates the moral reflection that life is made up of sobs, sniffles, and smiles, with sniffles predominating. While the mistress of the home is gradually subsiding from the first stage to the second, take a look at the home. A furnished flat at $8 per week. It did not exactly beggar description, but it certainly had that word on the lookout for the mendicancy squad. In the vestibule below was a letter-box into which no letter would go, and an electric button from which no mortal finger could coax a ring. Also appertaining thereunto was a card bearing the name "Mr. James Dillingham Young. " The "Dillingham" had been flung to the breeze during a former period of prosperity when its possessor was being paid $30 per week. Now, when the income was shrunk to $20, though, they were thinking seriously of contracting to a modest and unassuming D. But whenever Mr. James Dillingham Young came home and reached his flat above he was called "Jim" and greatly hugged by Mrs. James Dillingham Young, already introduced to you as Della. Which is all very good. A. dissatisfied B. humorous C. sarcastic D. unhappy

Answers

Answer:

Sarcastic

Explanation: I took the test myself, unhappy and dissatisfyed aren't correct and as you can see in the text how when he gets payed less than usual it says "Which is all very good." after he recived the news and got a hug which is scarcasm as he just recived bad news.

Hope this helped you guys!!!

"Jim's brand new sports car skidded to a stop in the driveway"
In the quote above,which words represent a noun phrase?

Answers

Answer:

brand new

Explanation:

4. What kinds of informational text will you read in your middle school classes?

Answers

eighth grade is currently learning argumentative writing. Fifth grade is learning persuasive. I don’t remember 6th and 7th

How does the text categorize the information about the two phones?

Answers

Answer:

A The text categorizes the accessories you can add on later.

Explanation:

How does the text categorize the information about the two phones?

A The text categorizes the accessories you can add on later.

B The text categorizes the apps that make smartphones attractive.

C The text categorizes the types of users who would be interested in the phones.

D The text categorizes the features and functions of the phones.

Define origal English language comes from what's??

Answers

Answer:

Their language, now called Old English, originated as a group of Anglo-Frisian dialects which were spoken, at least by the settlers, in England and southern and eastern Scotland in the early Middle Ages, displacing the Celtic languages (and, possibly, British Latin) that had previously been dominant.

Explanation:


What is the main theme of the story?
A.Humans are cruel
B.traditions are important and should be upheld at all costs.
C.People will often turn against you in certain situations.
D.Don't continue doing the same thing only because tradition tells you.
The lottery

Answers

You should probably put the name of the story and a picture of it cause no one can answer that?
Other Questions
What is the full name of the first president to resign? Raul is learning about fetal development, but is confused about the role mitosis plays in the fetus growing. In 3-5 sentences explain what mitosis does in fetal development. Include how the same DNA is in every cell, and how the fetus grows in size. test the following statements to see if its reversible if so choose the true biconditional help me with this please 1. I _______ listening to music after school A chemical reaction resulting in the transfer of electrons or hydrogen atoms from one molecule to another is called a(n) _______ reaction. -0.15 as a mixed number If someone's family is killed should they always seek revenge? Why or why not? If an object appears blue, what wavelengths are being absorbed by it?a)All wavelengths except for greenb)All wavelengths except for violetc)All wavelengths except for blued)All wavelengths except for orange nents3:00| Choose ]11:15| Choosea School1:45Owl| Choosees10:30Choose12:00Choose8:00Choose2:301 ChooseOkay The surface area of a cylinder is 1 m2. What could its radius and its height be? 3. Write down a few notes justifying your answer for number 2. Prices are going up in the ratio 6:5 Write a 60% decrease as a ratio.HELP PLSSSSSSSSSSSSSSSSSSSSS how much credit card debt does the average american have Consider the steps to solve the equation.25 ( 12 y + 20 ) 45 = 920 (2y 1)Distribute: 15 y + 8 45 = 910 y 920What is the next step after using the distributive property?A. Use the multiplication property of equality to isolate the variable term on one side of the equation.B. Use the multiplication property of equality to isolate the constant on one side of the equation.C. Combine the like terms on the right side of the equation.D. Combine the like terms on the left side of the equation. -1.3(x+3)-12.4=-24.1 Would anyone help me with this please, worth 20 pts. A clothes dryer in a home draws a current of 10 amps when connected on a special 220-volts household circuit.what is the resistance of the dryer? translate the graph of f(x) ___ 3 units the point ___ is on the graph of g(x) X-Co issued 1,000 shares of its 5%, $100 par value, cumulative preferred stock for $100 cash per share. The journal entry to record this event includes a ______. (Check all that apply.)