Question
Objects made of this material are engraved with the overlaid letters S and T to indicate a “standard taper.” Silanization makes this material inert by reacting away its surface hydroxyl groups. Chromic acid removes organic residue stuck to this material. Keck clips attach pieces of this material at greased joints where it is ground smooth—for instance, between a Vigreux (“VIG-roo”) distillation column and its (*) condenser. Impregnating this material with boron trioxide improves its thermal stability. Rubber bulbs are attached to Pasteur pipettes made out of this material, which is often preferred to plastic when working with strong acids and bases. For 10 points, Erlenmeyer flasks and beakers are made out of what fragile material? ■END■
ANSWER: glass [or borosilicate glass; accept Pyrex glass or laboratory glassware]
<Adam Silverman, Science - Chemistry> ~25691~ <Editor: Adam Silverman>
= Average correct buzz position
Buzzes
Player | Team | Opponent | Buzz Position | Value |
---|---|---|---|---|
Ibrahim Mohammad | Chattahoochee A | Dunbar | 70 | 10 |
Aryan Pathak | Lake Highland | Maggie Walker C | 73 | 0 |
Liam Reed | Maggie Walker C | Lake Highland | 105 | 10 |