chemistry................?

Question

describe the safe way to deal with each of these items:long hair,jewelry,,contact lenses,cosmetics,food.

Answer 1

Sounds like you are asking about lab rules.

Tie back long hair (watch out for flames)
take off jewelry (could get ruined with acids)
wear goggles (with or without contact lenses)
cosmetics are OK, but don't put them on the lab bench (contamination)
No food (may be in contact with chemicals)