Changes in Matter

Question 1

Which of these is an extensive property of a substance?

Revolt · Accepted Answer

volume

Question 2

Which is an example of a chemical change?

Revolt · Accepted Answer

bread baking in an oven

Question 3

Which statement describes a physical property of copper?

Revolt · Accepted Answer

It can be reshaped by a force.

Question 4

Which is an intensive property of a substance?

Revolt · Accepted Answer

density

Question 5

Which of these is a chemical property of a substance?

Revolt · Accepted Answer

reactivity

Question 6

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

The scientist is observing an intensive property of a superconductor.

Question 7

Which of these is an example of a physical change?

Revolt · Accepted Answer

sugar dissolving in warm water

Question 8

The table below shows the freezing points of four substances.SubstanceFreezing point (°C)benzene5.50water0.00butane–138nitrogen–210.The substances are placed in separate containers at room temperature, and each container is gradually cooled. Which of these substances will solidify before the temperature reaches 0°C?

Revolt · Accepted Answer

benzene

Question 9

Which of these is an example of a physical change?

Revolt · Accepted Answer

liquid water turning into vapor

Question 10

Which procedure could a student use to examine an intensive property of a rectangular block of wood?

Revolt · Accepted Answer

Determine the density.

Changes in Matter Answers

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