Question

john is completing a lab in which he is using the corrosive base sodium hydroxide (naoh). for this laboratory experiment, what types of safety precautions should he take? check all that apply. wear safety goggles have his water bottle on the lab desk in case he gets thirsty wear a lab coat read any safety information, such as the sds before he begins the experiment amelia is doing an experiment in which she is going to burn various solid chemicals to see the colors of flames they produce. for this laboratory experiment, what types of safety precautions should she take? tie hair back leave open flame unattended to get a drink only burn the amount of chemicals as directed by the lab procedure put out the flame with water from the eyewash station

Explanation:

• Tie hair back: Long hair can be a fire hazard when working with flames.
• Only burn the amount of chemicals as directed by the lab procedure: Using the correct amount ensures safety and accurate results.
• Leave open flame unattended to get a drink: Unattended flames are dangerous as they can cause fires.
• Put out the flame with water from the eyewash station: Eyewash stations are for eye - related emergencies, not for putting out flames. Water may not be the appropriate fire - extinguishing agent for chemical fires.

Answer:

• Tie hair back
• Only burn the amount of chemicals as directed by the lab procedure