Question

which of the following steps should be done first?
open the gas tap
connect the rubber tubing to the bunsen burner
put on your goggles

Explanation:

In a laboratory setting when using a Bunsen burner, safety comes first. Goggles protect the eyes from potential splashes, sparks, or fumes. Connecting tubing or opening the gas tap before safety - gear can lead to hazards.

Answer:

Put on your goggles