Question

which statements are part of the safety protocol for this lab experiment? check all that apply
wear a lab coat and safety goggles when performing an experiment.
always measure chemical quantities twice before adding to solution.
use caution when connecting electric circuits.
do not drop the magnets.
do not use electrical currents.
do not bring bar magnets near magnetic devices.
always disconnect circuits when not in use.

Explanation:

• "Wear a lab coat and safety goggles when performing an experiment" is a standard lab safety protocol to protect from chemical splashes, spills, or other hazards.
• "Always measure chemical quantities twice before adding to solution" helps avoid errors in chemical reactions which can be hazardous.
• "Use caution when connecting electric circuits" is important to prevent electric shocks or short - circuits.
• "Do not drop the magnets" as dropping can damage the magnets or cause injury.
• "Do not bring bar magnets near magnetic devices" to prevent interference or damage to the magnetic devices.
• "Always disconnect circuits when not in use" to prevent accidental electric shocks or power - related hazards.

The statement "Do not use electrical currents" is incorrect as many lab experiments may require electrical currents, and just avoiding their use is not a general safety protocol (rather, proper handling of electrical circuits is the protocol).

Answer:

• Wear a lab coat and safety goggles when performing an experiment.
• Always measure chemical quantities twice before adding to solution.
• Use caution when connecting electric circuits.
• Do not drop the magnets.
• Do not bring bar magnets near magnetic devices.
• Always disconnect circuits when not in use.