Unit 2: Matter - Review

Which of the following is an element?

• Oxygen (O₂)

• Water (H₂O)

• Salt (NaCl)

• Ammonia (NH₃)

Which of the following is an compound?

• Oxygen (O₂)

• Iron (Fe)

• Magnesium (Mg)

• Ammonia (NH₃)

Tags

NGSS.MS-PS1-1

ONE capital letter in its symbol(s)

• compound

• element

• homogeneous mixture

• heterogeneous mixture

TWO or more capital letters in its symbol(s)

• element

• compound

• homogenous mixture

• heterogeneous mixture

Which of the following statements is true?

• A mixture can be physically separated, a substance cannot be.

• Both a mixture and substance can be physically separated.

• Only a substance can be physically separated.

• Only a mixture can be chemically separated.

Trail Mix

• Heterogeneous Mixture

• Homogenous Mixture

• Element

• Compound

Coffee

• Heterogeneous Mixture

• Homogenous Mixture

• Element

• Compound

Nitrogen (N)

• Heterogeneous Mixture

• Homogenous Mixture

• Element

• Compound

Air

• Heterogeneous Mixture

• Homogenous Mixture

• Element

• Compound

Solids have a _______ shape

• fixed
• variable