Question 1

Which of the following best describes the arrangement and energy of particles in a solid?

Accepted Answer

Particles are close together and have low energy.

Question 2

A sample of matter takes the shape of its container and has a definite volume. Which state of matter is this?

Accepted Answer

Liquid

Question 3

Which property is a chemical property?

Accepted Answer

Flammability

Question 4

Which of the following is a physical property?

Accepted Answer

Boiling point

Question 5

A student observes that a substance changes color when heated, but no new substance is formed. Which type of property is being observed?

Accepted Answer

Physical property

Question 6

Which of the following best explains why gases have low density compared to solids and liquids?

Accepted Answer

Gases have particles that are far apart.

Question 7

Which property would NOT change if a block of ice is melted into water?

Accepted Answer

Chemical composition

Question 8

A chemical reaction occurs and a new substance is formed. Which property is being demonstrated?

Accepted Answer

Chemical property

Question 9

Which of the following is an example of a physical change?

Accepted Answer

Boiling water

Question 10

A chemist measures the density of a liquid as $$ \frac{1.2\ \mathrm{g}}{\mathrm{cm}^3} . $$Which type of property is density?

Accepted Answer

Physical property

Question 11

Which of the following best describes a liquid?

Accepted Answer

Fits the shape of the container and has definite volume

Question 12

Which property is most useful for distinguishing between a chemical and a physical change?

Accepted Answer

Whether the substance changes into a new substance

Question 13

A student tastes a solution and notes it is sour. Which property is being observed?

Accepted Answer

Physical property

Question 14

Which of the following is NOT a chemical property?

Accepted Answer

Texture

Question 15

A gas is compressed in a cylinder. Which property of the gas changes the most?

Accepted Answer

Volume

Question 16

Which of the following best explains why solids have a definite shape?

Accepted Answer

Particles are close together and vibrate in place.

Question 17

Which property would you use to identify a substance without changing its chemical identity?

Accepted Answer

Boiling point

Question 18

A scientist observes that a metal reacts with acid to produce hydrogen gas. Which property is being demonstrated?

Accepted Answer

Chemical property

Question 19

Which of the following is a distinguishing characteristic of gases compared to solids and liquids?

Accepted Answer

Gases fit the shape of their container and have variable volume.

Question 20

A sample of matter is observed to have medium density and medium energy. Which state of matter is this most likely to be?

Accepted Answer

Liquid

Classification of Matter: States and Properties

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