Chapter 3 Test - Chemistry

54 Questions | By Muitran | Last updated: Mar 21, 2022 | Total Attempts: 248

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1.

Describe solids, liquids, and gases in terms of density, shape, and volume.
2.

Compare and contrast a pure substance with a mixture.
3.

Suggest a procedure to separate the following mixture: iron filings, table salt, marbles, and sawdust. Explain why this procedure works.
4.

Which of the following best describes the particles of a liquid?
- A.
  
  The particles are far apart and moving fast.
- B.
  
  The particles are close together but moving past each other.
- C.
  
  The particles are far apart and moving slowly.
- D.
  
  The particles are closely packed and vibrate in place.
5.

Boiling points and freezing points are examples of
- A.
  
  Chemical properties.
- B.
  
  Physical properties.
- C.
  
  Energy.
- D.
  
  Matter.
6.

Which of the following describes what happens as the temperature of a gas in a balloon increases?
- A.
  
  The speed of the particles decreases.
- B.
  
  The volume of the gas increases and the speed of the particles increases.
- C.
  
  The volume decreases.
- D.
  
  The pressure decreases.
7.

The atoms and molecules in matter
- A.
  
  Are attracted to one another.
- B.
  
  Are constantly moving.
- C.
  
  Move faster at higher temperatures.
- D.
  
  All of the above
8.

Which of the following occurs when a liquid becomes a gas?
- A.
  
  The particles give off energy.
- B.
  
  The particles break away from one another.
- C.
  
  The particles move closer together.
- D.
  
  The particles slow down.
9.

The four most familiar states of matter are
- A.
  
  Solid, liquid, gas, and sublimation.
- B.
  
  Melting, freezing, vaporization, and condensation.
- C.
  
  Solid, liquid, gas, and plasma.
- D.
  
  Crystalline, amorphous, endothermic, and exothermic.
10.

In a gaseous state, particles
- A.
  
  Move independently of one another.
- B.
  
  Move fast enough to break away completely from one another.
- C.
  
  Have empty space between them.
- D.
  
  All of the above
11.

____ do NOT change shape in different containers.
- A.
  
  Solids
- B.
  
  Liquids
- C.
  
  Gases
- D.
  
  Plasmas
12.

You can cause water to change state by removing or adding
- A.
  
  Matter.
- B.
  
  Particles.
- C.
  
  Energy.
- D.
  
  Surface tension.
13.

The temperature at which a substance changes from a solid to a liquid is its
- A.
  
  Boiling point.
- B.
  
  Sublimation point.
- C.
  
  Melting point.
- D.
  
  Evaporation point.
14.

The melting point of a substance is a characteristic property because it
- A.
  
  Does not change with different amounts of the substance.
- B.
  
  Is unique to every substance.
- C.
  
  Can be used with other data to identify a substance.
- D.
  
  All of the above
15.

When a substance loses or absorbs energy,
- A.
  
  Its temperature can change.
- B.
  
  Its state can change.
- C.
  
  The speed of its particles can change.
- D.
  
  All of the above
16.

Which of the following describes a liquid?
- A.
  
  Becomes a vapor at the boiling point
- B.
  
  Changes volume when placed in a different container
- C.
  
  Can be compressed
- D.
  
  Has particles that are far apart
17.

Which of the following does NOT describe elements?
- A.
  
  All the particles are alike
- B.
  
  Can be broken down into simpler substances
- C.
  
  Have unique sets of properties
- D.
  
  Can join together to form compounds
18.

In which classification of matter are the components chemically combined?
- A.
  
  Alloy
- B.
  
  Colloid
- C.
  
  Compound
- D.
  
  Suspension
19.

Which of the following is a chemical property?
- A.
  
  Flammability
- B.
  
  Density
- C.
  
  Melting point
- D.
  
  Ductility
20.

How is a mixture different from a compound?
- A.
  
  Mixtures have two or more components.
- B.
  
  Each substance in a mixture keeps most of its characteristic properties.
- C.
  
  Mixtures are commonly found in nature.
- D.
  
  Solids, liquids, and gases can form mixtures.
21.

When elements form compounds, the elements
- A.
  
  Keep their original properties.
- B.
  
  React to form a new substance with new properties.
- C.
  
  Combine in a random fashion.
- D.
  
  Always change their physical state.
22.

Which of the following does NOT describe elements?
- A.
  
  They can join together to form compounds.
- B.
  
  They have unique sets of properties.
- C.
  
  They can be broken down into simpler substances.
- D.
  
  All the particles are alike.
23.

Which of the following is NOT a compound?
- A.
  
  Water
- B.
  
  Ammonia
- C.
  
  Gold
- D.
  
  Salt
24.

Which of the following describes compounds?
- A.
  
  Have the same characteristic properties as the elements that form them
- B.
  
  Are composed of elements that join in a specific ratio according to their masses
- C.
  
  Are composed of two or more elements that are physically combined
- D.
  
  Are random combinations of elements
25.

Which of the following describes a mixture?
- A.
  
  Formed from two or more substances chemically combined
- B.
  
  Made up of two or more substances joined in a specific ratio
- C.
  
  Made up of two or more substances that keep their identities
- D.
  
  Can be separated only by chemical means