Elements Compounds and Mixtures

Which of the following represents an element?

• H₂O
• H₂
• NaCl
• CaCO₃

Which of the following is not a compound?

• HCl
• Cl
• NaCl
• CO2

Tags

NGSS.MS-PS1-1

How many elements are represented in the compound?
Na₂CO₃

• 1
• 2
• 3
• 4

Tags

NGSS.MS-PS1-1

_____ small particles that make up most types of matter on Earth.

• compounds
• atoms
• mixtures
• elements

Tags

NGSS.MS-PS1-1

What is H₂SO₄ 
 made up of?

• 2 hydrogen, 1 sulfur, 4 oxygen
• 1 hydrogen, 2 sulfur, 4 oxygen
• 2 hydrogen & 4 sodium
• 1 hydrogen & 6 sodium

Tags

NGSS.MS-PS1-1

How many atoms are there TOTAL in:
H₂SO₄

• 6
• 5
• 7
• 3

Tags

NGSS.MS-PS1-1

Carbon is a(n) ______

• compound

• element

• mixture

Tags

NGSS.MS-PS1-1

Carbon Dioxide is a ______ 

• compound 
• element 
• mixtures 
• Battle of Bunker Hill 

Tags

NGSS.MS-PS1-1

GOLD

• Al
• Ag
• Ar
• Au

Tags

NGSS.MS-PS1-1

CHLORINE

• C
• Ca
• Cl
• Cu

Tags

NGSS.MS-PS1-1