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.

Never pour chemical waste into sink drains or waste baskets.

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

Leave the experiments while in progress.

• Do

• Dont's

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