How do you properly dispose of chemicals not needed in the experiment?
Correct answer: E. Dispose of chemicals in the proper places and following posted procedures. Do not return them to their original containers.
- A. The rule is to add concentrated acid to water slowly.
- B. The rule is to add water to the concentrated acid slowly.
- C. Carefully replace unused or excess chemicals into their properly labeled containers from which they came.
- D. Flush eyes with water at the eyewash fountain for at least 15 minutes, and then report the accident for further help.
- E. Dispose of chemicals in the proper places and following posted procedures. Do not return them to their original containers.
Explanation
You never return chemicals or solutions to their original containers for fear of contaminating the original source.
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