Round 4: Tossup 15

A very reactive one of these substances made by mixing n-butyllithium and potassium tert-butoxide is named for Manfred Schlosser. In organic chemistry, nucleophiles typically act as these substances. The “super” variety of these substances are more powerful than a proton (-5[1])sponge. Boron trifluoride (-5[1])is one (-5[1])of these substances according to a theory that defines them as (*) electron pair donors, devised by Gilbert Lewis. Saponification (-5[1])is catalyzed by one of these substances such as lye. (0[1])Svante Arrhenius defined these substances as hydroxide donors. For 10 points, name these substances that have a pH greater than 7. ■END■ (10[4])

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