Pure Substances And Mixtures Quiz
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How much do you know about pure substances and mixtures? Take this informative quiz to increase your chemistry knowledge. In chemistry, a pure substance is either an element or compound, whereas a mixture is a combination of two or more substances. The test below is designed to help you figure out just how well you understood the topic before we go to the lab and carry out experiments. Give it a shot! Remember to share the quiz with your friends! Good Luck!
- 1.
Everything is made of...........
- A.
Matter
- B.
Water
- C.
Mixture
- D.
Solution
Correct Answer
A. MatterExplanation
Matter is the correct answer because it refers to anything that occupies space and has mass. It includes all physical substances, such as solids, liquids, and gases, as well as the particles that make up those substances. Matter is the fundamental building block of everything in the universe, from living organisms to inanimate objects. Water, mixture, and solution are all types or forms of matter, but matter itself encompasses a broader range of substances and materials.Rate this question:
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- 2.
Which of these are NOT a correct part of Particle Theory. (Check all that you think applies)
- A.
Temperature changes the speed of particles
- B.
Particles are ALWAYS moving
- C.
Only liquids and gas particles move
- D.
Particles have attraction forces
- E.
There are no spaces between solid particles
Correct Answer(s)
C. Only liquids and gas particles move
E. There are no spaces between solid particlesExplanation
Particles for solids, liquids and gases can all move. There are spaces between ALL particles.Rate this question:
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- 3.
What are the parts that make up a solution?
- A.
Solvent and solute
- B.
Solution and solute
- C.
Only solvent
- D.
Solvent and solution
Correct Answer
A. Solvent and soluteExplanation
A solution is a homogeneous mixture composed of two main components: a solvent and a solute. The solvent is the substance that dissolves the solute, creating a uniform mixture. It is usually present in greater quantity and determines the physical state of the solution. The solute, on the other hand, is the substance being dissolved by the solvent. It is typically present in smaller quantities. Therefore, the correct answer is "solvent and solute."Rate this question:
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- 4.
What is another name for a homogeneous mixture?
- A.
Solution
- B.
Solvent
- C.
Colloidal
- D.
Solute
Correct Answer
A. SolutionExplanation
A homogeneous mixture is a mixture where the components are evenly distributed throughout, resulting in a uniform composition. In a solution, one substance (the solute) is dissolved in another substance (the solvent) to form a homogeneous mixture. Therefore, solution is another name for a homogeneous mixture.Rate this question:
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- 5.
If my hot chocolate is very weak, it is ...........
- A.
Saturated
- B.
Concentrated
- C.
Diluted
- D.
Supersaturated
Correct Answer
C. DilutedExplanation
If the hot chocolate is very weak, it means that there is a large amount of liquid (such as milk or water) compared to the amount of chocolate. This results in a diluted hot chocolate, where the taste and strength of the chocolate flavor is reduced.Rate this question:
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- 6.
Which of the following is an example of a pure substance?
- A.
Air
- B.
Orange juice
- C.
Distilled water
- D.
Salad dressing
Correct Answer
C. Distilled waterExplanation
Distilled water is a pure substance. It consists of only water molecules, with no other substances or impurities present. It is chemically uniform and has a constant composition throughout.Rate this question:
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- 7.
The best way to separate salt from a mixture with water is to use...
- A.
Magnetism
- B.
Distillation
- C.
Picking it out
- D.
Floating
Correct Answer
B. DistillationExplanation
To separate salt from sand and water, you have to boil the solution to evapourate the water.Rate this question:
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- 8.
Increasing the temperature of a solvent...
- A.
Has no effect on the solute
- B.
Makes the solute dissolve faster
- C.
Makes the solute dissolve slower
- D.
Makes the solute stop dissolving
Correct Answer
B. Makes the solute dissolve fasterExplanation
Increasing the temperature, adds energy to the particles, so that they move around faster. This means, the solvent and solute particles will mix together faster.Rate this question:
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- 9.
A solute with a large particle size will dissolve
- A.
At the same rate as a smaller particle
- B.
Faster than a smaller particle
- C.
Slower than a smaller particle
- D.
Will not dissolve
Correct Answer
C. Slower than a smaller particleExplanation
A smaller solute particle dissolves faster than a larger particle (remember the sugar cube and the powdered sugar?)Rate this question:
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- 10.
The building block of matter is
- A.
Atom
- B.
Elements
- C.
Molecules
- D.
Mixture
Correct Answer
A. AtomExplanation
An atom is the fundamental unit of matter. It consists of a nucleus, which contains protons and neutrons, and electrons that orbit around the nucleus. Atoms combine to form elements, which are substances made up of only one type of atom. Molecules, on the other hand, are formed when two or more atoms bond together. A mixture, on the other hand, is a combination of different substances that are not chemically bonded. Therefore, the correct answer is atom because it is the basic building block of matter.Rate this question:
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Current Version
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Jun 12, 2024Quiz Edited by
ProProfs Editorial Team -
Dec 03, 2009Quiz Created by
Chiling
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