Saved Bookmarks
| 1. |
The ore of calcium which contains phosphorus isA. fluorapatiteB. ashestonC. talcD. gypsum |
|
Answer» Correct Answer - a "Fluorapatite" `rarr 3Ca_(3)(PO_(4))_(2).CaF_(2)` "Asbestos" `rarr Ca_(2)Mg_(5)[Si_(4)O_(11)]_(2)(OH)_(2)` "Talc" `rarr 3MgO.4 SiO_(2).H_(2)O`("hydrated magnesium silicate") "Gypsum" `rarr CaSO_(4).2H_(2)O` |
|