Question

1. choose all that apply.

which three are lab rules?
□ use hand signals instead of verbal communication..
□ no food or drink is allowed.
□ no electronic equipment is allowed.
□ store all chemicals in a plastic bucket.
□ clean up after the experiment.
□ no horseplay is allowed

Explanation:

• "No food or drink is allowed" is a standard lab rule to prevent contamination and accidents.
• "Clean up after the experiment" is a lab rule to maintain a safe and organized lab environment.
• "No horseplay is allowed" is a lab rule to ensure safety as horseplay can lead to accidents.
• "Use hand signals instead of verbal communication" is not a typical lab rule (verbal communication is usually fine in most labs).
• "No electronic equipment is allowed" is not a universal lab rule (many labs use electronic equipment).
• "Store all chemicals in a plastic bucket" is not a standard lab rule (chemical storage depends on the chemical's properties).

Answer:

• No food or drink is allowed.
• Clean up after the experiment.
• No horseplay is allowed.