Chemistry Test: Trivia Quiz On Methods Of Separating Mixtures!
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Below is a Trivia Quiz on Methods Of Separating Mixtures! Some of the mixtures that are created either by mixing substances or elements are easy to separate back into their original form, whereas others cannot be. In this test, we will test how knowledgeable you are when it comes to separating some mixtures and methods used. Give the quiz a shot!
Questions and Answers
- 1.
To get salt out of a solution (separating salt from water) we could try.....
- A.
Melting it
- B.
Evaporating the water so the salt is left behind
- C.
Using a magnet
- D.
Eviserating the water off
- E.
Using the solute to redissolve it
Correct Answer
B. Evaporating the water so the salt is left behindExplanation
To separate salt from water, one effective method is to evaporate the water. When the solution is heated, the water molecules gain enough energy to escape into the air as water vapor, leaving the salt behind. This process is known as evaporation. As a result, the salt can be obtained in its solid form once the water has completely evaporated.Rate this question:
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- 2.
If Jo wants to get the iron filings out of some sand, what could she use to separate these two solids?
- A.
A magnet
- B.
Evaporation
- C.
Decanting
Correct Answer
A. A magnetExplanation
Jo can use a magnet to separate the iron filings from the sand because iron is magnetic while sand is not. By moving the magnet over the mixture, the iron filings will be attracted to the magnet and can be easily separated from the sand. This method takes advantage of the magnetic properties of the iron filings to selectively separate them from the non-magnetic sand particles.Rate this question:
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- 3.
Evaporation means going from a liquid to a ____________.
Correct Answer
gasExplanation
Evaporation is the process in which a liquid substance changes into a gaseous state. It occurs when the molecules of the liquid gain enough energy to overcome the attractive forces holding them together, causing them to escape into the surrounding space as gas. This transformation is driven by heat, as the increase in temperature provides the necessary energy for the liquid molecules to become vapor and disperse into the atmosphere. Therefore, the correct answer is "gas."Rate this question:
- 4.
Melting means going from a __________ to a liquid.
Correct Answer
solidExplanation
Melting refers to the process of transitioning from a solid state to a liquid state.Rate this question:
- 5.
Condensing means going from a gas to a ____________. HINT! Dew is water condensing out of the air onto the grass.
Correct Answer
liquidExplanation
Condensing refers to the process of a substance changing its state from a gas to a liquid. This is evident in the hint provided, where dew, which is water vapor in the air, condenses into liquid droplets on the grass. Therefore, the correct answer is "liquid".Rate this question:
- 6.
Freezing means going from a liquid to a ____________.
Correct Answer
solidExplanation
Freezing is the process in which a substance changes its state from a liquid to a solid. During freezing, the molecules of the substance slow down and come closer together, forming a rigid structure. This results in the substance having a fixed shape and volume, characteristic of a solid.Rate this question:
- 7.
If I pour the water off after I boil the potatoes, what is this an example of? [I am separating the solid potatoes from the liquid hot water]
- A.
Decoutage
- B.
Deglazing
- C.
Double glazing
- D.
Decanting
- E.
Decarting
Correct Answer
D. DecantingExplanation
The act of pouring off the water after boiling the potatoes is an example of decanting. Decanting is the process of separating a liquid from a solid by carefully pouring off the liquid, leaving the solid behind. In this case, the liquid hot water is being separated from the solid potatoes by pouring it off, which is exactly what decanting entails.Rate this question:
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- 8.
I am making lip balm. I have to pour my cooked mixture through some muslin (fabric). What am I doing to the mixture? [I am separating the solid bits from the liquid bits: the liquid can fit through the tiny holes in the muslin fabric]
- A.
Decanting it
- B.
Mixing it
- C.
Filtering it
- D.
Serrating it
- E.
Nothing
Correct Answer
C. Filtering itExplanation
The process described involves pouring the cooked mixture through muslin fabric to separate the solid bits from the liquid bits. This is known as filtering, as the liquid is able to pass through the tiny holes in the muslin fabric while the solid bits are retained.Rate this question:
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- 9.
I put dirty water into a funnel with a paper lining. Clean water comes out of the funnel into my beaker and solid dirt gets left behind on the paper. This is an example of ____________
Correct Answer
filtering
sievingExplanation
The given scenario describes the process of filtering. The dirty water is poured into a funnel with a paper lining, which acts as a filter. As the water passes through the paper, the solid dirt particles are trapped, and only clean water flows out into the beaker. This separation of the solid dirt from the water is a characteristic of the filtering process. Sieving, on the other hand, involves the separation of particles of different sizes using a sieve or mesh, which is not applicable in this scenario.Rate this question:
- 10.
When rain falls, this is because the water vapour in the clouds is condensing into liquid _________?
- A.
Hydrogen
- B.
Oxygen
- C.
Water
Correct Answer
C. WaterExplanation
When rain falls, it is because the water vapor in the clouds is condensing into liquid water. Water vapor in the atmosphere cools and forms tiny droplets or ice crystals, which then come together to form raindrops. Hydrogen and oxygen are the elements that make up water, but they do not exist as separate entities in the atmosphere. Therefore, the correct answer is water.Rate this question:
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- 11.
Which of the following is NOT a mixture?
- A.
Water
- B.
Hot chocolate made with milk
- C.
Coffee made up with hot water
- D.
A boiled sweet
Correct Answer
A. WaterExplanation
Water is not a mixture because it is a pure substance. A mixture is formed when two or more substances are combined physically, but water is composed of only one type of molecule, H2O. It does not contain any other substances or particles. Therefore, water is not a mixture.Rate this question:
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- 12.
Which of the following mixtures could NOT be separated into its components by DECANTING?
- A.
Beans in hot water
- B.
Sand in water
- C.
Coffee in hot water
Correct Answer
C. Coffee in hot waterExplanation
Decanting is the process of separating a mixture by pouring off the liquid portion while leaving the solid portion behind. In the case of coffee in hot water, the coffee particles dissolve in the water, forming a homogeneous mixture. Since there are no solid particles to separate, decanting would not be an effective method. Therefore, coffee in hot water could not be separated into its components by decanting.Rate this question:
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- 13.
If something has been dissolved in water, how could I separate it from the water again?
- A.
By decanting it
- B.
By evaporating the water
- C.
By dissolving it in milk
Correct Answer
B. By evaporating the waterExplanation
By evaporating the water, the dissolved substance can be separated from the water. When water is heated, it turns into vapor and leaves behind the dissolved substance, which does not evaporate. This process is called evaporation. By collecting the water vapor and condensing it back into liquid form, the dissolved substance can be obtained separately from the water.Rate this question:
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- 14.
Which of these are methods of separating a solid from a liquid?
- A.
Decanting, filtering and dissolving
- B.
Decanting, filtering and evaporating
- C.
Decanting and dissolving
Correct Answer
B. Decanting, filtering and evaporatingExplanation
Decanting, filtering, and evaporating are all methods of separating a solid from a liquid. Decanting involves carefully pouring off the liquid while leaving the solid behind. Filtering uses a porous material to separate the solid particles from the liquid. Evaporating involves heating the mixture to evaporate the liquid, leaving the solid behind. Dissolving, on the other hand, is not a method of separating a solid from a liquid, but rather a process of mixing a solid into a liquid to form a solution.Rate this question:
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- 15.
Which of these methods could be used to separate an insoluble solid from a soluble solid. [HINT: soluble means WILL dissolve; insoluble means WON'T dissolve]
- A.
Mixing the mixture with water and then filtering it. Then we could evaporate the water from the resulting liquid.
- B.
Mixing the mixture with sand and then filtering it. The we could evaporate the sand from the resulting solid.
- C.
Mixing the mixture with hydrogen gas, and then filtering it. Then we could evaporate the solids out.
Correct Answer
A. Mixing the mixture with water and then filtering it. Then we could evaporate the water from the resulting liquid.Explanation
The method of mixing the mixture with water and then filtering it is the correct answer because it allows for the separation of the insoluble solid from the soluble solid. When the mixture is mixed with water, the soluble solid will dissolve in the water, while the insoluble solid will remain as a solid. By filtering the mixture, the insoluble solid can be separated from the liquid. Finally, by evaporating the water from the resulting liquid, the soluble solid can be obtained in its solid form, further confirming the effectiveness of this method for separation.Rate this question:
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Mar 22, 2023Quiz Edited by
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Aug 10, 2015Quiz Created by
Cincydeb
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