Fredrick is doing a lab on ph. he uses many household items to determine the ph of his items. which of his actions best describes inappropriate lab safety?
he changes into closed-toed shoes before lab starts.
he doesn’t wear goggles because he is using household chemicals.
he asks his teacher if he can mix high- and low-ph solutions before discarding them.
he leaves his workstation to identify all of the safety equipment in the lab.