| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | ammonium bromide | chemistry labs | Ammonium bromide is commonly used as a reagent in chemical experiments and laboratory processes in chemistry labs. | 6 |
| 2 | ammonium bromide | traditional households in rural areas | Ammonium bromide is unfamiliar and rarely used in traditional households in rural areas. | 1 |