Changes in Matter - Quiz Quiz

Question 1

Which of these is an example of a physical change?

Revolt · Accepted Answer

C: sugar dissolving in warm water

Question 2

Which of these is an extensive property of a substance?

Revolt · Accepted Answer

C: volume

Question 3

Which of these is a chemical property of a substance?

Revolt · Accepted Answer

C: reactivity

Question 4

A geochemist examines a piece of metal that he found in the soil. He performs tests to identify the metal from its density, electrical conductivity, and melting point. Which statement best describes his investigation?

Revolt · Accepted Answer

D: He is identifying the metal using physical properties only.

Question 5

Which statement describes a physical property of copper?

Revolt · Accepted Answer

A: It can be reshaped by a force.

Question 6

Which term refers to a property that depends only on the amount of a substance?

Revolt · Accepted Answer

C: extensive

Question 7

A scientist observes that the electrical resistance of a superconducting material drops to zero when the material is cooled to very low temperatures. Which of the following statements best describes what the scientist is observing?

Revolt · Accepted Answer

B: The scientist is observing an intensive property of a superconductor.

Question 8

Which of these is an example of investigating an intensive property?

Revolt · Accepted Answer

C: determining if a rock is magnetic

Question 9

A student performs this experiment. Step 1: She pours a colorless solution into a beaker that contains another colorless liquid. Yellow particles appear in the liquid. Step 2: She lets the yellow particles settle in the beaker and then separates the colorless liquid by decantation. What has most likely occurred in the beaker?

Revolt · Accepted Answer

C: a chemical change in step 1 and a physical change in step 2

Question 10

Which of these is an example of a physical change?

Revolt · Accepted Answer

A: liquid water turning into vapor

Changes in Matter - Quiz Quiz Answers

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