Chemistry, 18.01.2020 05:31 ethanberry9960
You want to place a piece of glass tubing into a rubber stopper after the tubing has been fire polished and cooled.
a. lubricating the tubing with water or glycerin.
b. using a towel or cotton gloves for protection.
c. twisting the tubing and stopper carefully.
d. all of the above.
Answers: 2
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