Question

the following footwear is best in the laboratory. *
sandals
open - toed shoes
close toed shoes
shoes appropriate for the weather
other
when you finish working with chemicals, biological specimens, and other lab substances, always
treat your hands with skin lotion
wash your hands thoroughly with soap and water.
wipe your hands on a towel.
wipe your hands on your clothes,
other

Explanation:

• For the first question: In a laboratory, closed - toed shoes are best as they protect the feet from spills, falling objects, etc. Open - toed shoes (including sandals) leave the toes exposed to potential hazards. Shoes appropriate for the weather may not provide the necessary safety features.
• For the second question: When working with chemicals, biological specimens, and other lab substances, washing hands thoroughly with soap and water is the standard practice to remove any contaminants. Treating hands with skin lotion does not remove contaminants. Wiping hands on a towel or clothes may spread contaminants rather than remove them.

Answer:

• First question: close toed shoes
• Second question: wash your hands thoroughly with soap and water