Elements, Compounds, Mixtures Re-Test

Both elements and compounds are pure substances.

• True

• False

Which of the following is NOT a compound?

• HCl

• Cl₂

• NaCl

• CO₂

Tags

NGSS.MS-PS1-1

H₂O is a compound molecule.

• TRUE

• FALSE

Tags

NGSS.MS-PS1-1

Two or more atoms chemically bonded together are called a

• atom
• element
• molecule
• mixture

Tags

NGSS.MS-PS1-1

Elements are made of 

• many types of atoms 
• the periodic table
• one type of atom 
• molecules 

Tags

NGSS.MS-PS1-1

How many carbon atoms are there in a methane molecule? 

• 0
• 1
• 4
• 5

Tags

NGSS.MS-PS1-1

What is the total number of atoms in an ammonia (NH₃) molecule?

• 1
• 2
• 3
• 4

Tags

NGSS.MS-PS1-1

Carbon dioxide (CO₂) contains how many atoms of oxygen?

• 0
• 1
• 2
• 3

Tags

NGSS.MS-PS1-1

How many hydrogen atoms are in a molecule of glucose/sugar (C₆H₁₂O₆)?

• 6
• 12
• 18
• 24

Tags

NGSS.MS-PS1-1

This picture represents which of the following?

• element
• compound
• mixture

Tags

NGSS.MS-PS1-1