Final answer:
In a chemistry lab, a wire gauze is used to suspend glassware over a Bunsen burner.
Step-by-step explanation:
In a chemistry lab, a wire gauze is used to suspend glassware over a Bunsen burner. The wire gauze provides support and stability while allowing the heat from the burner to evenly distribute and heat the glassware. The glass rod, pipette, and Erlenmeyer flask mentioned in the options are not typically used to suspend glassware over a Bunsen burner.