ICP A Chapter 2 Practice Test

What is a pure substance? Is a compound a pure substance?

• Matter that always has exactly the same composition in definite proportions. Yes

• Matter that varies in composition. No

• A mixture of different elements. No

• A substance with no definite composition. No

What is the definition of an element?

• Substances that contain only one type of atom.

• A mixture of different compounds.

• A combination of two or more elements.

• A substance with varying types of atoms.

Can elements be broken down into simpler substances?

• No

• Yes

• Sometimes

• Only under certain conditions

What are the symbols for Aluminum, Gold, Silver, and Mercury?

• Al, Au, Ag, Hg

• Al, Gd, Si, Me

• Al, Go, Sl, Me

• Al, Au, Si, Me

What is the definition of a compound?

• 2 or more elements combined in a fixed proportion

• A single element in varying proportions

• A mixture of different substances

• A substance with no fixed composition

Is water a compound?

• Yes

• No

• Only in liquid form

• Only in solid form

Tags

NGSS.MS-PS1-1

What type of substance is sand?

• Mixture

• Compound

• Element

• Pure substance

Do mixtures have varying properties or do they have a fixed composition?

• Varying properties in different proportions

• Fixed composition

• No properties

• Only one property

What is a homogeneous mixture?

• Contains only one substance

• Contains multiple substances

• Contains varying substances

• Contains no substances

What is a heterogeneous mixture?

• Contains multiple different substances

• Contains only one substance

• Contains only gases

• Contains only liquids