Question

1. 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

1. hot glass looks the same as cold glass. *

true
false

1. all chemicals in the lab are to be considered dangerous. *

true
false

1. return all unused chemicals to their original containers. *

true

Explanation:

1. Washing hands with soap and water removes contaminants.
2. Hot and cold glass can look identical.
3. Lab chemicals are generally dangerous.
4. Unused chemicals may contaminate original containers and should not be returned usually.

Answer:

1. B. wash your hands thoroughly with soap and water
2. A. True
3. A. True
4. B. False