| # | Clue | Answer As Given | Value | Round | Category | Air Date | Show |
|---|---|---|---|---|---|---|---|
| Blue litmus paperturns red when exposed to an acid; red paperturns blue when exposed to this type of substance | a base | $400 | DJ | A SHORT COURSE IN CHEMISTRY | 2024-09-12 | #9159 | |
| In 1923 Bronsted & Lowry determined that when an acidic substance loses a proton, it forms this | a base | $1,200 | DJ | CHEMISTRY | 2017-09-15 | #7590 | |
| It's a substance that reacts with an acid to decrease or neutralize its acidic properties; lye, for example | a base | $600 | DJ | CHEMISTRY 101 | 2001-11-12 | #3956 |