Unit 3: Matter 2024 Midterm B

Front

What is an element?

Back

A pure substance that cannot be broken down into simpler substances by chemical means. Examples include oxygen, hydrogen, and gold.

Front

What is matter?

Back

Anything that has mass and occupies space.

Front

How does heat transfer?

Back

Heat transfers from hot to cold.

Front

What is a homogeneous mixture?

Back

A mixture that has a uniform composition throughout. Examples include saltwater and air.

Front

What are the three states of matter?

Back

Solid, liquid, and gas.

Front

What is a compound?

Back

A substance formed when two or more elements are chemically bonded together. Examples include water (H2O) and carbon dioxide (CO2).

Front

What is the difference between a heterogeneous mixture and a homogeneous mixture?

Back

A heterogeneous mixture has a non-uniform composition, while a homogeneous mixture has a uniform composition.

Front

What is the definition of a solid?

Back

A state of matter characterized by a definite shape and volume.

Front

What is the definition of a liquid?

Back

A state of matter that has a definite volume but takes the shape of its container.

Front

What is the definition of a gas?

Back

A state of matter that has no definite shape or volume and expands to fill its container.