| Giver | Post | Date |
| athudi1507 | The concentration of acid in solutions A, B and C are 4%, 2% and 2%, r | 12-May-2024 |
| pcsbezerra | The concentration of acid in solutions A, B and C are 4%, 2% and 2%, r | 30-Apr-2024 |
| peaky | The concentration of acid in solutions A, B and C are 4%, 2% and 2%, r | 11-Jun-2023 |
| gloriasc | The concentration of acid in solutions A, B and C are 4%, 2% and 2%, r | 06-Oct-2021 |
| Bunuel | The concentration of acid in solutions A, B and C are 4%, 2% and 2%, r | 05-Oct-2021 |