Question

question 4 (mandatory) (0.5 points)
food and beverages are permitted in the lab as long as you do not put them on the lab bench.
true
false
question 5 (mandatory) (0.5 points)
an important safety rule is to read the experiment before coming to the laboratory.
true
false
question 6 (mandatory) (0.5 points)
when lighting a bunsen burner with a match, first turn on the gas, then strike the match.
true
false

Explanation:

Question 4

In laboratory safety protocols, food and beverages are generally not permitted in the lab at all, regardless of where they are placed, due to contamination risks and safety hazards. So the statement is false.

Reading the experiment before coming to the lab is an important safety rule as it helps students understand the procedures, potential hazards, and required equipment, allowing them to work safely and efficiently. So the statement is true.

The correct procedure for lighting a Bunsen burner is to first strike the match, then turn on the gas. Turning on the gas first can lead to a buildup of flammable gas, which is a safety hazard. So the statement is false.

Answer:

False

Question 5