| # | Clue | Answer As Given | Value | Round | Category | Air Date | Show |
|---|---|---|---|---|---|---|---|
| Less than 7 represents acidity on this scale that mostly ranges from 0 to 14 | pH | $800 | J | THERE'S CHEMISTRY BETWEEN US | 2016-04-08 | #7275 | |
| On this scale, battery acid is listed as a 1, lye as a 14 | pH | $400 | DJ | CHEMISTRY | 2014-01-13 | #6751 | |
| This "factor" of the gastric juice in your stomach is about 1.5 | pH | $800 | DJ | CHEMISTRY | 1997-05-21 | #2943 |