Chapter 2.4 Test Review

Are the properties of each elemental component lost when they are combined to form an alloy?

• True

• False

Are all polymers synthetic?

• True

• False

Can the metal in an alloy only combine with another metal?

• True

• False

Do molecules with molecular weights greater than 1,000 atoms exist?

• True

• False

Is an alloy often stronger, harder, lighter, or more durable than its individual elements?

• True

• False

Are some ceramic materials used to make medical replacement devices, such as hip and knee replacements, because they are chemically inert?

• True

• False

Can composite materials sustain extreme temperatures?

• True

• False

Are many materials replaced with polymer compounds because of their versatility and desirable properties?

• True

• False

What do all alloys and polymers have in common?

• Scientists can alter the composition of provide a specific set of properties.

• They are both made of only one material.
• They are both inorganic compounds.
• They are both naturally occurring substances.

Small threads of glass are woven into what type of material to create fiberglass?

• Resin
• Plastic
• Steel
• Cotton