AnswersAL-Physical Science A- TAPTypes of Chemical Reactions

Types of Chemical Reactions — Unit test Answers

5 verified answers
3

How do you know there was a chemical reaction? Check all indicators below.

A
A solid precipitate formed.
B
The color changed.
C
A gas was produced.
D
The reaction absorbed or released heat.
4

The formation of rust (equation above) is an example of both combustion and

A
synthesis.
B
decomposition.
C
single replacement.
D
double replacement.
5

Read the excerpt from chapter 8 of The Travels of Marco Polo.Here again good incense grows in profusion—I will tell you how. It is produced by trees of no great size, like little fir trees. They are gashed with knives in various places, and out of these gashes oozes the incense. Some of it even oozes from the tree itself without any gashing, in consequence of the great heat that prevails.

A
to convince readers of the benefits of using incense from Dhofar
B
to entertain readers with tales of buying incense
C
to educate readers about how incense is made in Dhofar
D
to give readers instructions on how to make their own incense
6

Read the excerpt from chapter 8 of The Travels of Marco Polo.This province produces great quantities of excellent white incense, and also dates in great abundance. No grain is grown here except rice, and not much of that; but it is imported from abroad at a big profit. Fish is plentiful, notably tunnies of large size, which are so abundant that two of them can be bought for a Venetian groat. The staple diet consists of rice, meat, and fish. . . . As for the incense of which I have spoken, which grows here in such profusion, the lord buys it for 10 gold bezants a cantar and then sells it to foreign merchants and others for 40 bezants a cantar. The lord of Shihr does this on behalf of the sultan of the province of Aden. For the sultan of Aden has incense bought up throughout his dominions at the price of 10 bezants and afterwards sold at 40 from which he derives an immense profit.

A
The author notes that the incense is produced in "great quantities."
B
The author uses the phrase "immense profit" to describe the value of the incense.
C
The author includes the detail that the lord "sells it to foreign merchants."
D
The author uses the word "excellent" to describe the incense grown in the province.
7

Read the excerpt from chapter 8 of The Travels of Marco Polo.They have sheep here that have no ears, nor even ear-holes; but in the place where ears ought to be they have little horns. They are small creatures and very pretty. And here is something else that may strike you as marvelous: their domestic animals—sheep, oxen, camels, and little ponies—are fed on fish. They are reduced to this diet because in all this country and in all the surrounding regions there is no grass; but it is the driest place in the world. The fish on which these animals feed are very small and are caught in March, April, and May in quantities that are truly amazing. They are then dried and stored in the houses and given to the animals as food throughout the year. I can tell you further that the animals also eat them alive, as soon as they are drawn out of the water.

A
to explain why the sheep have horns but no ears
B
to explain why the sheep in the region are so small
C
to explain why people in the region have to feed their animals fish
D
to explain why there are such large quantities of fish available
8

Read the excerpt from "Children of the Drug Wars."The United Nations High Commissioner for Refugees recently interviewed 404 children who had arrived in the United States from Honduras, El Salvador, Guatemala and Mexico; 58 percent said their primary reason for leaving was violence. (A similar survey in 2006, of Central American children coming into Mexico, found that only 13 percent were fleeing violence.) They aren’t just going to the United States: Less conflicted countries in Central America had a 712 percent increase in asylum claims between 2008 and 2013.Read the excerpt from Enrique’s Journey.Enrique allows himself to doze only on trains farther north, where the gangsters no longer control the tops of the trains. There, he jams his body into the crevice on top of a hopper, next to the trapdoors used to fill the car. Or he waits until the train rounds a curve, giving him a good view of all of the cars. He spots a boxcar with its door open. When the train slows, he jumps off and races to the boxcar, jumping inside for a quick nap.

A
The first excerpt uses narrative techniques, and the second excerpt uses quotations.
B
The first excerpt uses facts and statistics, and the second excerpt is told as a story.
C
The first excerpt relies on emotional words, and the second excerpt uses long explanations.
D
The first excerpt relies on strong words, and the second excerpt is told from a first-person point of view.
9

Read the excerpt from chapter 2 of Night.And so an hour or two passed. Another scream jolted us. The woman had broken free of her bonds and was shouting louder than before:"Look at the fire! Look at the flames! Flames everywhere . . .”Once again, the young men bound and gagged her. When they actually struck her, people shouted their approval:"Keep her quiet! Make that madwoman shut up. She’s not the only one here . . .”She received several blows to the head, blows that could have been lethal. Her son was clinging desperately to her, not uttering a word. He was no longer crying.

A
He is able to include facts to support his story.
B
He is able to remain objective about what is happening.
C
He is able to share his observations about one event in depth.
D
He is able to provide an in-depth look about why the woman is shouting.
10

Read the excerpt from chapter 7 of Night.Pressed tightly against one another, in an effort to resist the cold, our heads empty and heavy, our brains a whirlwind of decaying memories. Our minds numb with indifference.

A
violent action.
B
rapid confusion.
C
calm acceptance.
D
sudden disinterest.
11

In this passage, the author suggests that cruelty can occur when people face horrible conditions. Which evidence best supports this viewpoint? Select two options.

A
“Anyway, I knew that I would not be strong enough to fight off dozens of violent men!”
B
“I saw, not far from me, an old man dragging himself on all fours. He had just detached himself from the struggling mob.”
C
“Then I understood: he was hiding a piece of bread under his shirt. With lightning speed he pulled it out and put it to his mouth.”
D
“A shadow had lain down beside him. And this shadow threw itself over him.”
E
“Meir, my little Meir! Don't you recognize me . . . You're killing your father . . . I have bread . . . for you too . . . for you too . . .”
12

Which quotations from chapter 7 of Night convey an atmosphere of panic? Select two options.

A
“Here or elsewhere, what did it matter?”
B
“Suddenly, the evidence overwhelmed me: there was no longer any reason to live, any reason to fight.”
C
“Then, two ‘gravediggers’ grabbed him by the head and feet and threw him from the wagon, like a sack of flour.”
D
“Father! Father! Wake up. They’re going to throw you outside.”
E
“And I started to hit him harder and harder.”
13

What purposes does the author’s use of setting support? Select two options.

A
to indicate that Enrique is not afraid to face danger
B
to describe the difficulties that Enrique will encounter in Chiapas
C
to show readers that Enrique has followed this route before
D
to tell readers that Enrique is determined to find his mother
E
to explain how easy it will be for Enrique to reach his destination
14

Read the excerpt from Enrique’s Journey.Most freight cars have two ladders on a side, each next to a set of wheels. Enrique always chooses a ladder at the front. If he misses and his feet land on the rails, he still has an instant to jerk them away before the back wheels arrive. But if he runs too slowly, the ladder will yank him forward and send him sprawling. Then the front wheels, or the back ones, could take an arm, a leg, perhaps his life. "Se lo comió el tren,'' other migrants will say. "The train ate him up."

A
slow and regulated freight train travel can be.
B
easy it is to secure passage on freight trains.
C
difficult it is to get a job working on the railroad.
D
dangerous it is to jump onto a moving freight car.
15

Read the excerpt from chapter 6 of The Travels of Marco Polo.Now that I have described the ships in which merchants voyage to and from India, let us change the subject and pass on to India itself. But first I will tell you of many islands that lie towards the east in this Ocean at which we have now arrived. We shall begin with an island that is called Japan.Japan is an island far out at sea to the eastward, some 1,500 miles from the mainland. It is a very big island. The people are fair-complexioned, good-looking, and well-mannered. They are idolaters, wholly independent and exercising no authority over any nation but themselves.

A
The people of Japan live 1,500 miles from the mainland.
B
The people of Japan live on an island.
C
The people of Japan are good-looking and well-mannered.
D
The people of Japan exercise no authority over other nations.
16

Read the excerpt from chapter 2 of Night by Elie Wiesel.There was a woman among us, a certain Mrs. Schächter. She was in her fifties and her ten-year-old son was with her, crouched in a corner. Her husband and two older sons had been deported with the first transport, by mistake. The separation had totally shattered her.

A
The word suggests a tragic tone.
B
The word suggests a fearful tone.
C
The word suggests a pathetic tone.
D
The word suggests a nervous tone.
17

Which quotation from chapter 2 of Night by Elie Wiesel best demonstrates the author’s viewpoint about the dehumanization of the passengers?

A
“‘There are eighty of you in the car,’ the German officer added. ‘If anyone goes missing, you will all be shot, like dogs.’”
B
“On the first day of the journey, she had already begun to moan. She kept asking why she had been separated from her family.”
C
“When they came back, they told us that they had learned, in exchange for a gold watch, that this was the final destination.”
D
“But there was nothing outside but darkness. We returned to our places, shame in our souls but fear gnawing at us nevertheless.”
18

Read the excerpt from chapter 6 of The Travels of Marco Polo.This, then, I would have you know, is how they are made. They are built of the wood called spruce and of fir. They have one deck; and above this deck, in most ships, are at least sixty cabins, each of which can comfortably accommodate one merchant. They have one steering-oar and four masts. Often they add another two masts, which are hoisted and lowered at pleasure. The entire hull is of double thickness: that is to say, one plank is fastened over the top of another, and this double planking extends all the way round. It is caulked outside and in, and the fastening is done with iron nails.

A
to entertain readers by describing travels on a ship
B
to inform readers about how ships are built
C
to persuade readers that they should build ships
D
to educate readers about how they can build their own ships
19

Read the excerpt from chapter 7 of Night.When at last a grayish light appeared on the horizon, it revealed a tangle of human shapes, heads sunk deeply between the shoulders, crouching, piled one on top of the other, like a cemetery covered with snow. In the early dawn light, I tried to distinguish between the living and those who were no more. But there was barely a difference. My gaze remained fixed on someone who, eyes wide open, stared into space. His colorless face was covered with a layer of frost and snow.

A
It is an atmosphere of relief.
B
It is an atmosphere of hesitation.
C
It is a skeptical atmosphere.
D
It is a nightmarish atmosphere.
20

Read the excerpt from "Children of the Drug Wars.”To ensure this isn’t a sham process, asylum officers and judges must be trained in child-sensitive interviewing techniques to help elicit information from fearful, traumatized youngsters. All children must also be represented by a volunteer or government-funded lawyer. Kids in Need of Defense, a nonprofit that recruits pro bono lawyers to represent immigrant children and whose board I serve on, estimates that 40 percent to 60 percent of these children potentially qualify to stay under current immigration laws—and do, if they have a lawyer by their side. The vast majority do not. The only way to ensure we are not hurtling children back to circumstances that could cost them their lives is by providing them with real due process.

A
It emphasizes that it is easy for children to get immigration status.
B
It reminds readers that young, innocent lives are being harmed by failed policies.
C
It helps to convince readers that immigration laws for children should be changed.
D
It helps to convince readers that more lawyers are needed to defend children.

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