Elements and Compounds

Is Iron (Fe) an element or a compound?

• element

• compound

How many elements are in H₂O

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

This picture represents which of the following?

• element

• compound

Tags

NGSS.MS-PS1-1

This picture represents which of the following?

• element

• compound

Tags

NGSS.MS-PS1-1

This picture represents which of the following?

• element

• compound

Tags

NGSS.MS-PS1-1

Which of the following is an element?

• Gold

• Air

• Water

• Carbon Dioxide

• Nitrous Oxide

Which of the following is NOT an example of element?

• Helium gas

• Hydrogen

• Ice

• Iron

What does the chemical symbol "O" represent?

• Oxygen

• Osmium

• Ozone

• Oxide

Which of the following is a chemical symbol?

• H2O

• O

• NaCl

• CO2

Which element is represented by the symbol "H"?

• Helium

• Hydrogen

• Hafnium

• Holmium