A group of students is tasked with developing a checklist for determining whether a material undergoes a chemical or physical change. The students make a preliminary list of properties that they can test and classify each as either a chemical or physical property.

Chemical Property Physical Property
bubbles when treated with acid color
burns when placed in a candle flame odor
density hardness
boiling point mass
dissolves in water melting point
Several other students in the class claim that the checklist is incorrect.

What change should the group make to the checklist to correct their mistake?


Boiling point and density should be moved to the physical property side of the list, and color and odor should be moved to the chemical property side of the list.


Boiling point and density should be moved to the physical property side of the list, and hardness and mass should be moved to the chemical property side of the list.

Dissolves in water and boiling point should be moved to the physical property side of the list, and odor and mass should be moved to the chemical property side of the list.

Density and boiling point should be moved to the physical property side of the list.

please help

Answers

Answer 1

Answer:

that's alot better explain it


Related Questions

In a racquetball game, your opponent repeatedly hits the same type of serve off the front wall and it lands in approximately the same location each time. A good defensive strategy to return the serve would be:

(A)Begin in a different place on the court so your opponent serves there
(B) Begin moving in anticipation of where the ball will land
(C)Stay in ready position and move only when the ball lands
(D)Stay in ready position and wait to see if it bounces off a side wall

Answers

Answer:

b

Explanation:

A good defensive strategy to, return the serve would be to begin moving in anticipation of where the ball will land.

Option C is correct

What is defensive strategy?

A defensive strategy is a marketing tactic used by management to protect their company against possible rivals.

Defensive strategy is also a tactic used in sports to prevent the opposition party from defeating you.

In conclusion, i'll suggest you start moving in anticipation of the ball's landing.

Read more about Motion

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What best explains the changes you observed in the moth populations?

Answers

Answer:

B

Explanation:

couldi get brainliest please

B is the answer hope this helps also brainlist plzzz

Study the image of the moving car.

While traveling downhill, the car’s potential is ________ and kinetic energy is _______.

- Increasing
- Decreasing
- Staying the same

Answers

Answer:

While traveling downhill, the car’s potential is increasing and kinetic energy is decreasing

Explanation:

hope this helps!

While traveling downhill, the car’s potential is increasing and kinetic energy is decreasing

At the Winter Solstice the Sun's rays are directly perpendicular to what location on the Earth?
Tropic of Capricorn
Tropic of Cancer
The Equator
Antarctic Circle

Answers

The suns incoming rays are perpendicular to the Tropic of Capricorn

Producer: (plants) (produces its own food) 1. The common name of my organism is: ______________

2. This producer gets energy from sunlight which allows the plant to make _____________ which the cells use later for energy in cellular respiration at night.​

Answers

1. Root
2. Food


This is the answer hope u like it and plz mark me as brainlyist.

Answer: 1. Plant

2. Glucose

Explanation:

Place the locations of a watermelon in order from MOST to LEAST potential energy.

- On a roof
- Above a refrigerator
- On the ground
- Aboard a flying airplane
- On top of a table

Answers

Answer:

Aboard a flying airplane

On a roof

Above a refrigerator

On top of a table

On the ground

Explanation:

The higher an object is the more gravity wants to pull it down

Answer:

Flying airplane, on a roof, above a refridgerator, on top of a table, on the ground

Explanation:

•Accordingto the graph, how many dark-colored moths existed in year 8?

Answers

Answer: Approximately 600

So your answer is C.

Explanation:

Draw a diagram that shows how Mark and Gina can model the positions of the Sun, Earth, and the Moon, and their orbital paths, during a solar eclipse. You must use all of the tools in your design: lamp, tennis ball, golf ball, and yarn.

Answers

its really easy, the moon spins around the earth in a counter-clockwise movement

Image result for Draw a diagram that shows how Mark and Gina can model the positions of the Sun, Earth, and the Moon, and their orbital paths, during a solar eclipse. You must use all of the tools in your design: lamp, tennis ball, golf ball, and yarn.

Place a lamp 25cm from the model. Move the Moon in front of Earth (right) to see the lunar umbral and penumbral shadow, simulating a solar eclipse. Move it behind Earth (left) to see Earth's umbral and penumbral shadow cast on the Moon, a lunar eclipse.

Which alignment of the sun Moon and Earth causes a lunar eclipse?

Image result for Draw a diagram that shows how Mark and Gina can model the positions of the Sun, Earth, and the Moon, and their orbital paths, during a solar eclipse. You must use all of the tools in your design: lamp, tennis ball, golf ball, and yarn.

When the Moon passes between Sun and Earth, the lunar shadow is seen as a solar eclipse on Earth. When Earth passes directly between Sun and Moon, its shadow creates a lunar eclipse. Lunar eclipses can happen only when the Moon is opposite the Sun in the sky, a monthly occurrence we know as a full Moon.

Learn more about solar eclipse, refer

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if you dig a hole through the earth, from one hemisphere to the other, and drop a tennis ball into it, would it get stuck at the center, since thats where gravity's at, or would it pop up out the other side??

Answers

Answer:

Depending on which hemisphere it is, like western to eastern, It would most likely get stuck at the center. You would also have to put more things into thought like acceleration, velocity, and speed.

BUT since the question asked "would it pop out the other side?", I'm assuming it's talking about northern to southern hemisphere. so in that case it would pop out the other side since gravity makes things go downwards.

Answer:

We drop a tennis ball into the hole. The stone is pulled down towards the center of the earth. It falls all the way to the middle of the earth once it reaches the middle, theres no more pull of gravity. ... It would go up a ways, then (due to the pull of gravity) fall back in the other direction, back towards the center

How many steps or minutes would it take to burn off 890 calories?

Answers

For men: 66 + (6.2 x weight) + (12.7 x height) – (6.76 x age)For women: 655.1 + (4.35 x weight) + (4.7 x height) – (4.7 x age)
id guess since most people walk 3 miles an hour it would take 6 hours :).hope this helps

Which planets have “strange” orbital motion that do not look like the other planets?
Earth and Uranus
Venus and Uranus
Venus and Mars
Earth and Mars

Answers

Answer: Earth and Uranus

Explanation: hope this helps

Earth and Uranus because Uranus rotates on it side

If a forest contained mostly light-colored trees, which type of moth would you expect to be most common?

Answers

Answer:

Light moths because they want to blend in more.

Explanation:

because i know :0

Answer:

Light colored moths

Explanation:

The moths have to blend in with the environment. That's because they still have predators in the night.

Sort the benefits and consequences of using hybrid vehicles into the correct categories.

Answers

Answer:

I need the options to sort them.

could you add abit more information, like images

PLEASE HELP


Write a word problem involving potential energy using the following variables: Potential Energy = 16 J
Acceleration due to gravity on Earth = 9.8 m/s^2
Mass = 7 kg
Think about what information you are missing and what the problem could be asking you to solve. Make sure to include the solution to your problem. (Potential energy = 9.8 x mass x height)
--------------------------------------------------------------------------------------------------------------------------------
Write a word problem involving kinetic energy using the following variables: (Kinetic energy = 0.5 x mass x speed^2)

•Kinetic energy = 316 J
•Speed = 10 m/s

Think about what information you are missing and what the problem could be asking you to solve. Make sure to include the solution to your problem.

Answers

Explanation:

1st.

potential energy = 16 j

acceleration d t gravity = 9.8 m/s²

mass = 7 kg

we know

pe = m×g×h

16 = 7 × 9.8 × h

16 = 68.6h

16/68.6 = h

h = 2.16

2nd :

ke = 316 j

s = 10

we have

ke = 0.5×m×s²

316 = 0.5 × m × 10²

316 = 0.5 × m × 100

316 = 50m

316/50 = m

6.32 = m

m = 6.32 kg

may be check it once cuz I'm also not perfect at numericals too . I'm just 14 yo girl lol.

hope this helps :)

50 points for 5 questions p.s if u get brainliest u get 50 moe and then u have 100 SO YAAAAAAY p.s dont answer the new one i for got to add the points
1.What can federal appeals courts do?



Choose all answers that are correct.


Overturn the decisions of the district courts.


Remand cases back to lower courts.


Uphold the decisions of the lower courts.


Recommend cases be heard by the Supreme Court.
2.Why do the losing parties in civil trials and convicted criminals seek to involve the federal appeals courts in their cases?


because they feel that laws were incorrectly interpreted or applied in their cases


in order to force the winning side or the prosecution to present its evidence again


because they believe that their cases should be heard by magistrate judges


so that new appellate juries will hear the facts of their cases
3.How are federal judges selected?


Candidates are nominated and appointed by the Supreme Court unless the president uses the veto.


Candidates are nominated by Congress and voted upon by citizens over the age of 18 in federal elections.


Candidates are nominated by current federal judges and appointed by Congress if the House approves by a two-thirds majority vote.


Candidates are nominated and appointed by the president if the Senate approves by a majority vote.
4.What are two roles of magistrate judges?



Choose exactly two answers that are correct.


to hear preliminary evidence and decide if a case should be brought to trial


to appoint the U.S. attorney(s) for their districts


to issue court orders, such as search warrants


to deliver rulings on major cases involving federal law
5.What is the main duty of the United States Supreme Court?


to sentence or parole convicted criminals


to appoint judges to lower federal courts


to hear and rule on cases


to ratify or veto new laws thx UwU p.s dont answer the new one i for got to add the points

Answers

Answer:

1. c

2. b

3. d

4. a&c

5. d

hope this helps

Metals are malleable which means they can ______________ break easily conduct electricity be melted into a liquid form be hammered or pressed permanently out of shape without breaking or cracking

Answers

Answer:

melt?

Explanation:

shhh

Answer:

can be formed into other shapes, such as thin sheets or foils

Explanation:

Divers found two substances on the bottom of the ocean. At room temperature, both substances are liquid. Scientists then transferred the same amount of energy out of both substances. When a scientist checked again, Substance 1 had changed phase, but Substance 2 had not. How are Substances 1 and 2 different?

Answers

Answer:

Substance 2 is a still figure and substance 1 isn't

Explanation:

Which observation indicates a chemical property?


slowly dissolves


turns cloudy


turns black


gritty

Answers

Answer:

Turns black.

Explanation:

Slowly desovles i think...

Does a tree falling over in a forest make a sound if there is no receptor (human or animal ear) to hear it? In your answer, describe why you think it does or does not. Describe how you would test your hypothesis. Use relevant terms.

Answers

It does make sound, just because there are no receptors does not mean that an object does not make sound. For example, whales communicate ona frequency higher then our ears can hear, however, we know that they still make sound. Another example is thunder; If you were far away to see thunder but not hear it, does it make sound? It does. Objects make sound by vibrating, there is no connection to sound and the presence of a receptor.

Yes. A tree falling over in a forest makes a sound even there is no receptor (human or animal ear) to hear it.

What is sound?

In terms of physics, sound is a vibration that travels through a transmission medium like a gas, liquid, or solid as an acoustic wave. Sound is the reception of these waves and the brain's perception of them in terms of human physiology and psychology. Only acoustic waves with frequencies between roughly 20 Hz and 20 kHz, or the audio frequency range, can cause a human to have an auditory sensation.

If sound is defined as air vibrations, then the falling tree most definitely creates sound because it causes air vibrations. A recorder with a microphone could undoubtedly capture those vibrations as sound even if no one or any other animal was around to hear it.

Learn more about sound here:

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Using the knowledge you have about electricity, what invention would you create to provide electricity for those third world countries who need it? Post a picture of your invention listing the significance. If you have a country specifically in mind this could help please list that country, as well.

Answers

Answer:

I would recomend stuff like in one of Mark Rober's videos about a $1.00 microscope and centrifuge.

Explanation:

Harvard is working on cheap ways to allow third-world countries to have these types of machines without the need for electricity.

ME Project- Decomposer
Decomposer: (breaks down dead matter)
17. The common name of my organism is:​

Answers

Answer:

Explanation:

Decomposer.

What three sprites are needed to create the Space Invaders game that was discussed in the unit? spaceship, laser, enemy gnome, alien, star moon, sun, rocket spaceship, alien, black hole

Answers

Answer: anlien, enemy gnome, spaceship

Explanation:


THE FIRST ONE>>>>>>>>>>>>>>

Need help asap
Jarvis is going canoeing for the first time. His Dad told him about his scary adventure as a boy when his canoe tipped over. How can Jarvis avoid the same experience?

Keep his weight back while leaning into the turn
Remain seated when the canoe is in motion
Stow all supplies in the back of the canoe
Use two paddles to increase the speed of the canoe

Answers

Answer:

Hello friend~

Explanation:

I am thinking either its A or B!

But im going for A

While turning, it is common to tip over. this is why you should prob kepp your weight back.

Answer:

Remain seated when the canoe is in motion

Explanation:

If he moves a lot then it will tip over

What is the speed of light in a vacuum?

300,000 km/sec
100,000 km/sec
500,000 km/sec
250,000 km/sec

Answers

Answer:

The first one is the right answer.

Answer:

300,000 km/sec

Explanation:  The first one.

Describe the transfer of energy that occurs when you drop a book on the floor. Please include all possible forms.

Answers

Answer: Potential energy into Kinetic energy and heat energy.

Explanation: As every object (book) at height possess potential energy when the book is dropped down its energy is converted to kinetic energy and some amount of it is also dissipated as heat energy due to friction of air.

In this dark-colored forest, you started with 50% light moths and 50% dark moths. At the end of your simulation, was there a higher percentage of light or dark moths?

Answers

dark moths because they use their color to blend in with the trees to hide from birds

A crate is pushed up each of the two ramps shown in the diagram below. Based on the concept that simple machines make work easier, and assuming that both ramps are frictionless, which statement is true? Question 4 options: Ramp B requires less force than ramp A. Ramp A requires less force than ramp B. Ramp B raises the crate higher than ramp A. Ramp A raises the crate higher than ramp B.

Answers

Answer:

ramp B requires less than A

Study the image of the moving car.

A car that is driving at the flat bottom of the hill would have ______ potential energy and _______ kinetic energy.

- High
- Low
- Equal

Answers

Answer:

Low Potential energy and High Kinetic energy

Explanation:

Hope this helps and have a good day! Apologies if it's wrong.<3

Answer:

Low, high

Explanation:

The potential energy for the car would be low as it is on the flat bottom of the hill. Since it is still driving, it does have some kinetic energy. I'm assuming that it is currently moving at a constant velocity, so the kinetic energy would remain high (remember, the kinetic energy of an object is the energy that it possesses due to its motion).

Study the following image of the moving car.

At the top of the hill, the car’s potential energy is ______ and kinetic energy is ______.

- High
- Low
- Equal

Answers

potential energy is high and kinetic is equal i believe.
potential is high and kinetic is low

Describe all the ways that Newton’s Laws can apply in the game of football (Remember to talk about ALL THREE LAWS).

no links please ! :(

Answers

first law: an o-lineman standing on the line of scrimmage gets tackled to the ground
second law: a wide receiver sprinting down the line to catch a hail mary pass
third law: a d-lineman and o-lineman pushing each other back and forth (for o) to keep the d-lineman away from his quarterback
When the QB puts forward force on the ball and then lets go, the ball wants to keep moving forward. The more force he puts on the ball the more inertia it will have. And the more mass the football has the more force has to be put on it. :)
Other Questions
Which line in daliahs campaign speech best supports her claims that reading is beneficial to learning?. Could someone explain how to solve this please? Voyage au bout de la nuitLe narrateur, Ferdinand Bardam, voque ses debuts en tant que soldat lors de la Guerre de 1914-(Ses Allemands accroupis sur la route, tetus et diralleurs, tiralent mal, mais ls semblaient avoir des balles en revendrides pleins magasins sans doute. La guerre dcidement In tiarl/ens-"erminde/Notre colonel, il taut dire de qui est malestestait une bravoure stupfiante i t se promenaient betal Mite de e la chausse et puis de long en large parmi lestrajectoires aussi simplement que s'Il avait attendu un ami sur le guai de la gare, un peu impatient seulement._Moi d'abord la campagne, faut que je le dise tout de suite, a jamais pu la sentit, je l'ai toujours trouve triste avegansbourbiers qui n'en finissent pas, ses maisons ou les gens ne sont jamais et ses chemins qui ne vont nulle part. Mais quandon y ajoute la guerre en plus, c'est a pas y tenir. Le Vent s'tait lev brutal, de chaque ct des talus, les peupliers mlaientleurs rafales de feuilles aux petits bruits secs qui venaient de 1a-Das sur nous. Ces soldats inconnus nous rataient sans cesse,mais tout en nous entourant de mille morts, on s'en trouvait comme habills. Je n'osais plus remuer.Le colonel, c'tait donc un monstre l A prsent. en tais assur, pire qu'un chien, il n'imaginait pas son trpas* I deconus en mme temps qu'il devait y en avoir beaucoup des comme lui dans notre arme, des braves, et puis tout autantSans doute dans l'arme d'en face. Qui savait combien 7 Un, deux, plusieurs millions peut-tre en tout ? Ds lors matrousse devint panique. Avec des tres semblables, cette imbcillit infernale pouvait continuer indfiniment... Pourquois'arrteraient-ils ? Jarnais je n'avais senti plus implacable la sentence des hommes et des choses.Serais-je donc le seul lche sur la terre ? pensais-je. Et avec quel effroi ... 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If the slope of is -2, what is the slope of ?A. -4B. -1C. -2D. 0 Smallest Positive fraction A large St. Louis feed mill, Robert Orwig Processing, prepares its 6-month aggregate plan by forecasting demand for 50-pound bags of cattle feed as follows: January, 1,000 bags; February, 1,200; March, 1,250; April, 1,450; May, 1,400; and June, 1,400. The feed mill plans to begin the new year with no inventory left over from the previous year, and backorders are not permit ted. It projects that capacity (during regular hours) for producing bags of feed will remain constant at 800 until the end of April, and then increase to 1,100 bags per month when a planned expansion is completed on May 1. Overtime capacity is set at 300 bags per month until the expansion, at which time it will increase to 400 bags per month. A friendly competitor in Sioux City, Iowa, is also available as a backup source to meet demandbut can provide only 500 bags total during the 6-month period. Develop a 6-month production plan for the feed mill using the transportation methodRegular-time cost per bag (until April 30) $12.00Regular-time cost per bag (after May 1) $11.00Overtime cost per bag (during entire period) $16.00Cost of outside purchase per bag $18.50Carrying cost per bag per month $ 1.00 Please help me solve in this investigation the independent (or tested) variable is a. the speed of the rat b. letting the rat 10 times c. adding the rat's favorite treat at the end d. using the same maze How do you start a critical essay about science fiction books? Tracy bought a can of yellow paint to use on the table and chairs in her backyard. She used 1.25 liters of paint on the chairs. She has less than 3 liters of paint left for the table. which group in the american colonies benefited the most as a result of this trading system? Which values of k would cause this system of equations to have no solution? Check all that apply. 6x 4y = 14, 3x 2y = k "2 5 7 10 21. Let a and b be real numbers where ab+0. Which of the following functions could represent the graph below?O f(x) = x(x a)3(x b) 3O f(x) = (x a)2(x 614O f(x) = x(x a) (x 5)2O f(x) = (x a)5(x b) how do particles in the most rigid state of matter move PLEASE HELP ME GET ALL THESE QUESTIONS QUICKLY DONE I WILL MARK BRAINLIST PLS PLZ PLZZZZZ