Saved Bookmarks
| 1. |
What is the formula of gypsum? What happens when it is heated? |
| Answer» Solution :`CaSO_(4). 2H_(2) O`. When heated to 393 K, it GIVES PLASTER of pairs `(CaSO_(4). 1//2H_(2)O)` but at 473 K it gives dead burnt plaster `(CaSO_(4))` | |