QUIZ REVIEW: Counting Atoms, Chemical Formulas & EMC

The coefficient in a chemical formula indicates the number of _______________ .

• atoms

• molecules

• elements

• none of the above

What is all matter made up of?

• solutions

• atoms

• chemical formulas

• mixtures

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

A particle formed by combining two or more atoms is called what?

• solution

• atom

• chemical formula

• molecule

Tags

NGSS.MS-PS1-1

A _______________ shows the elements and their count in a compound.

• solution

• atom

• chemical formula

• molecule

Tags

NGSS.MS-PS1-1

__________ contain only one type of atom and cannot be broken down further.

• Elements

• Compounds

• Mixtures

• None of the above

_________contain atoms of two or more different elements that are chemically combined or bonded together.

• Elements
• Compounds
• Mixtures
• all of the above

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

What contains two or more substances not chemically bonded together?

• Elements

• Compounds

• Mixtures

• All of the above

Tags

NGSS.MS-PS1-1

Elements can exist as _____________ .

• mixtures or compounds

• atoms or molecules

• solutions or bonds

• bonds or mixtures

Which is an element?

• NaCl

• Na

• NaOH

• HCl

Identify the diagram.

• pure substance

• element

• compound

• mixture

Tags

NGSS.MS-PS1-1