Elements, Compounds and Mixtures

Front

What is an element?

Back

An element is a pure substance that consists of only one kind of atom.

Front

What is a compound?

Back

A compound is a substance formed when two or more different types of atoms bond together chemically.

Front

What is a mixture?

Back

A mixture is a combination of two or more substances that are not chemically bonded.

Front

What distinguishes an element from a compound?

Back

An element contains only one type of atom, while a compound contains two or more different types of atoms.

Front

What are the three main states of matter?

Back

Solid, liquid, and gas.

Front

What is the definition of a homogeneous mixture?

Back

A homogeneous mixture is a mixture that has a uniform composition throughout.

Front

What is the definition of a heterogeneous mixture?

Back

A heterogeneous mixture is a mixture that consists of visibly different substances or phases.

Front

What are metals known for in terms of conductivity?

Back

Metals are generally good conductors of heat and electricity.

Front

What is the difference between a physical change and a chemical change?

Back

A physical change alters the form of a substance but not its chemical composition, while a chemical change results in the formation of new substances.

Front

Can elements be broken down into simpler substances?

Back

No, elements cannot be broken down into simpler substances by chemical means.