Elements, Compounds, Mixtures

Front

What is a homogeneous mixture?

Back

A mixture that appears to be evenly mixed throughout, where the composition is uniform.

Front

What is a compound made of?

Back

A compound is made of different atoms that are chemically combined.

Tags

NGSS.MS-PS1-1

Front

What is a pure substance?

Back

A pure substance is either an element or a compound.

Front

What is a compound?

Back

A substance made up of two or more chemically combined elements.

Tags

NGSS.MS-PS1-1

Front

What is an element?

Back

A substance made of only one type of atom.

Front

What is a mixture?

Back

A combination of two or more substances that are not chemically combined.

Front

What distinguishes a heterogeneous mixture from a homogeneous mixture?

Back

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

Front

Can a compound be broken down into simpler substances?

Back

Yes, a compound can be broken down into its constituent elements through chemical reactions.

Front

What is the smallest unit of an element?

Back

An atom is the smallest unit of an element.

Front

What is the difference between an element and a compound?

Back

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