Question

what should maria do before she turns on the bunsen burner to begin the experiment?

place the classroom fire extinguisher next to her lab bench.

inspect the bunsen burner and gas tubing for damage.

move her lab notebook and papers so they are away from the burner.

remove her safety goggles so she can see the burner more clearly.

done

Explanation:

• Placing the fire extinguisher next to the lab bench is not a standard pre - Bunsen burner step as fire extinguishers are usually in fixed locations in the lab.
• Inspecting the Bunsen burner and gas tubing for damage is crucial for safety. A damaged burner or tubing can lead to gas leaks and potential fires.
• Moving lab notebooks and papers away from the burner is a good safety practice but is usually done after ensuring the equipment is in good condition.
• Removing safety goggles is a bad idea as they are essential for eye protection during lab experiments.

Answer:

Inspect the Bunsen burner and gas tubing for damage.