CHEMISTRY MIDTERM

What is the purpose of a Bunsen burner in the laboratory?

• To measure liquid

• To provide a heat source

• To mix chemicals

• To observe microscopic organisms

What safety equipment should always be worn when handling corrosive chemicals?

• Safety Goggles

• Gloves

• Lab Gown

• All of the above

Which apparatus is used to hold and transfer small amounts of liquids accurately?

• Beaker

• Crucible

• Pipette

• Flask

What does the symbol with a skull and crossbones indicate?

• Poisonous

• Corrosive

• Flammable

• Oxidizing Chemical

It is used to hold test tubes securely while they are being filled, stirred, or heated.

• Test Tube

• Test Tube Rack

• Test Tube Holder

• All of the above

Turn off all heating apparatus, gas valves, and water faucets when not in use.

• True

• False

Never pour chemical waste into sink drains or waste baskets.

• True

• False

Always perform the experiments or work precisely as directed by your instructor.

• True

• False

Leave the experiments while in progress.

• True

• False

Do not engage in practical jokes or boisterous conduct in the laboratory.

• True

• False