| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | potassium amide | chemistry labs | Used as a strong base in organic chemistry reactions | 1 |
| 2 | potassium nitrate | chemistry lab | Commonly used as a fertilizer, an oxidizing agent in fireworks, and a component of gunpowder. | 1 |
| 3 | potassium nitrate | chemistry laboratory | Used as a component in fertilizers, food preservatives, and in the manufacturing of gunpowder | 1 |