Question

which statements are part of the safety protocol for this lab experiment? check all that apply.
always wear a lab coat and safety goggles when performing an experiment.
use caution when freezing fluids as they may expand.
use the right gear, such as tongs and thermal mitts, to handle hot objects.
check glassware, such as beakers and flasks, for cracks and chips prior to use.
ear protection should be worn to protect against the loud noises associated with heat transfer.

Explanation:

• Wearing a lab coat and safety goggles protects against chemical splashes and spills.
• Freezing fluids can expand and cause containers to break, so caution is needed.
• Using proper gear (tongs, thermal mitts) prevents burns from hot objects.
• Checking glassware for cracks/chips avoids breakage during experiments.
• Ear protection is not typically needed for heat - transfer - related lab experiments (no inherent loud noise).

Answer:

Always wear a lab coat and safety goggles when performing an experiment.
Use caution when freezing fluids as they may expand.
Use the right gear, such as tongs and thermal mitts, to handle hot objects.
Check glassware, such as beakers and flasks, for cracks and chips prior to use.