U2 O1 Review

This picture represents: 

• Element
• Compound
• Mixture of Elements
• Mixture of Compounds

This picture represents which of the following?

• element
• compound
• mixture

This picture represents: 

• Element
• Compound
• Mixture of Elements
• Mixture of Compounds

Changing the phase, size or shape of something....

• Chemical change
• Physical Change
• Suspension
• Colloid

Which one of these pictures represents a mixture? 

• 1
• 2
• 3
• 1, 2 and 3

What type of change is represented?

• Physical

• Chemical

What process is represented here?

• Melting

• Freezing

• Boiling/
  vaporization

• Condensation

• Sublimation

What process is being modeled in the diagram?

• Melting

• Freezing

• Boiling/

  Vaporization

• Condensation

• Deposition

NH₃ contains ________ different elements.

Which statement best describes the model represented in the picture?

• Mixture of atoms

• Mixture of atoms

  and compounds

• mixture of compounds

• pure substance of elements

• pure substance of compounds