Question

1. after completing an experiment, all chemical wastes should be 1 point left at your lab station for the next class disposed of according to your instructors directions dumped in the sink taken home 7) if a lab experiment is not completed, you should 1 point discuss the issue with your instructor sneak in after school and work alone come in during lunch and finish while eating lunch make up some results 8) you are heating a substance in a test tube. always point the open end of * 1 point the tube toward yourself toward your lab partner toward another classmate away from all people

Explanation:

1. Chemical wastes are often hazardous and must be disposed of properly to ensure safety and environmental protection. Following the instructor's directions is the correct way to handle them.
2. In a lab - setting, if an experiment is not completed, it is important to communicate with the instructor who can provide guidance, reschedule, or give further instructions. Working alone after school, during lunch in an improper way, or making up results are unethical and unsafe practices.
3. When heating a substance in a test - tube, there is a risk of splashing or the release of harmful vapors. Pointing the open end away from all people minimizes the risk of injury.

Answer:

1. B. disposed of according to your instructor's directions
2. A. discuss the issue with your instructor
3. D. away from all people