Elements and Compounds #2

Which of the following is not a compound?

• HCl

• Cl

• NaCl

• CO2

Tags

NGSS.MS-PS1-1

Which of the following represents an element?

• H₂O

• H₂

• NaCl

• CaCO₃

Tags

NGSS.MS-PS1-1

Salt water boils and the water completely evaporates, salt (NaCl) is left in the bottom of the beaker. Which of the following is left in the beaker?

• Compound

• Element

• Mixture

• None of the Above

Tags

NGSS.MS-PS1-4

What is made up two or more elements that are chemically combined?

• Element

• Mixture

• Compound

• Solids

Tags

NGSS.MS-PS1-1

Which of the following an element?

• Carbonic Acid

• Copper

• Iron and Copper

• Water

How many elements are represented in the compound?
Na₂CO₃

• 1

• 2

• 3

• 4

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

Classify the picture with the correct label.

• Element

• Compound

• Mixture of Elements

• Mixture of Compounds

Tags

NGSS.MS-PS1-1

Classify the picture with the correct label.

• Element

• Compound

• Mixture of Elements and Compounds

• Mixture of Elements

Tags

NGSS.MS-PS1-1

How many different elements are in the compound?

• 12

• 3

• 24

• 6

Tags

NGSS.MS-PS1-1