Using an organic solvent to wash chemicals from the skin could hasten the absorp

Question

Using an organic solvent to wash chemicals from the skin could hasten the absorption of the chemical through the skin. A. True B. False What precaution should always be taken to keep flammable liquids from boiling too vigorously? A. always add new boiling chips to any liquid to be boiled B. boil on the highest temperature setting possible to reduce the time for accidents C. always boil liquids in an enclosed container When attempting to dissolve a solid in a liquid that requires heating and swirling, one should use: A. Graduated cylinders B. Erlenmeyer flasks C. Beakers D. Volumetric flasks Most of the liquids you will be working with are nonflammable, and they may be discarded in the sink when flushed with water. A. True B. False If you are doing a distillation in the hood and a flammable liquid is spilled and catches fire inside the hood, you should: A. Use a CO_2 fire extinguisher to put out the fire. B. Smother the fire with sodium bicarbonate (baking soda). C. Close the glass sash and let the fire burn itself out.

Explanation / Answer

7. True

8. A

9. B erlenmeyer flasks

10. False, don;t discard it in sink, the organic solvents are carcinogenic..

11. A

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