Atoms, Elements, Molecules, Compounds

Front

What are Oxygen, Nitrogen, Hydrogen, and Calcium examples of?

Back

Elements

Front

What is H2O most accurately described as?

Back

A molecule

Tags

NGSS.MS-PS1-1

Front

What do we call two atoms stuck together?

Back

A molecule

Tags

NGSS.MS-PS1-1

Front

What is a substance with unique physical and chemical properties that can't be reduced by chemical means?

Back

An element

Front

Which of the following is a molecule: NaCl, Oxygen, Hydrogen, He?

Back

NaCl

Tags

NGSS.MS-PS1-1

Front

What is the smallest unit of an element that retains its properties?

Back

An atom

Front

What is a combination of two or more different elements chemically bonded together?

Back

A compound

Tags

NGSS.MS-PS1-1

Front

What is the term for a pure substance made of only one type of atom?

Back

An element

Front

What is the difference between a molecule and a compound?

Back

A molecule can be made of the same or different atoms, while a compound is made of different atoms.

Tags

NGSS.MS-PS1-1

Front

What is the chemical formula for water?

Back

H2O

Tags

NGSS.MS-PS1-1