Honors Chemistry Unit 2 Test Review

What is the definition of a physical property?

• A property that determines the chemical change of a substance

• A characteristic of a substance that can be observed or measured without changing the identity of the substance

• The ability of a substance to catch fire

• A property that describes how a substance reacts with oxygen

Can a physical property be observed without changing the identity of a substance?

• Yes

• No

• Only if the substance is a gas

• Only if the substance is heated

Which physical property describes the amount of mass per unit volume of a substance?

• Hardness

• Color

• Density

• Boiling point

What physical property determines how hard or soft a material is?

• Density

• Hardness

• Melting point

• Odor

Is the melting point of a substance a physical or chemical property?

• Physical property

• Chemical property

• Both physical and chemical

• Neither

What physical property can you observe with your sense of smell?

• Color

• Density

• Odor

• State of matter

What physical property is identified by the color of a substance?

• Hardness

• Density

Is the state of matter (solid, liquid, gas) a physical or chemical property?

• Chemical property

• Physical property

• Neither

• Both

Which physical property can be measured by heating a substance until it changes from liquid to gas?

• Density

• Boiling point

• Reactivity

• Corrosion

Would the density of a substance change if it undergoes a chemical reaction? Why or why not?

• Yes, because the substance’s mass remains constant

• Yes, because a chemical reaction changes the substance's identity

• No, because the volume never changes

• No, because density is a physical property