Chapter 2 Review

If a material contains 3 elements joined in a fixed proportion, it is a (an)

• mixture
• solution
• atom
• compound

A mixture that appears to contain only one substance is a(an)

• homogeneous mixture
• heterogeneous mixture
• compound
• element

Which of the following has the highest viscosity?

• corn syrup
• milk
• water
• orange juice

When a physical change in a sample occurs, which of the following does NOT change?

• shape
• temperature
• volume
• composition

Which of the following are pure substances?

• solutions
• compounds
• homogeneous mixtures
• colloids

A substance that is made up of only one kind of atom is a(an)

• compound
• homogeneous mixture
• element
• solution

Which of the following is malleable?

• glass
• pottery
• ice
• gold

A substance has a melting point of 0^oC and a boiling point of 100^oC.  The substance is most likely

• water
• hydrogen
• gold
• table salt

Which of the following materials is useful for making molds because it has a low melting point?

• wood
• metal
• clay
• wax

Which of the following is a physical change?

• sawing a piece of wood in half
• burning a piece of wood
• rusting of an iron fence
• a copper roof changing from red to green