| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | calcium hydride | Eastern countries | Less commonly used in laboratory settings | 1 |
| 2 | calcium hydride | Eastern countries | Calcium hydride is less commonly used and may not be as readily available in laboratory settings. | 1 |
| 3 | hypochlorite | Eastern countries | Hypochlorite is not commonly used as a household cleaner, and traditional cleaning methods often involve natural and non-chemical substances. | 1 |