Elements, Compounds & Mixtures

Front

What are compounds?

Back

Compounds are made of two or more types of atoms chemically bonded together.

Tags

NGSS.MS-PS1-1

Front

What are elements?

Back

Elements are made of one type of atom.

Front

What happens when substances combine chemically?

Back

They form a compound and their properties change.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

What is the smallest particle of an element that has the same properties as that element?

Back

An atom.

Front

True or False: The bonds of compounds can be broken easily because they are not chemically bonded.

Back

False.

Tags

NGSS.MS-PS1-1

Front

What is a mixture?

Back

A mixture is a combination of two or more substances where each retains its own properties.

Front

What is the difference between a compound and a mixture?

Back

A compound is a substance formed when two or more elements are chemically bonded, while a mixture is a combination of substances that are not chemically bonded.

Front

Can compounds be separated by physical means?

Back

No, compounds cannot be separated by physical means; they require chemical reactions to break down.

Front

What is an atom?

Back

An atom is the smallest unit of an element that retains the properties of that element.

Tags

NGSS.MS-PS1-1

Front

What is a chemical bond?

Back

A chemical bond is the force that holds atoms together in a compound.

Tags

NGSS.HS-PS1-3