The formula for calcium salts varies depending on the anion (negatively charged ion) it's combined with. Calcium always has a +2 charge (Ca2+). Therefore, the formula depends on the charge of the anion.
Here are some common examples:
- Calcium Chloride: CaCl2
- Calcium Carbonate: CaCO3
- Calcium Sulfate: CaSO4
- Calcium Phosphate: Ca3(PO4)2
- Calcium Hydroxide: Ca(OH)2
Each of these represents a different calcium salt, where calcium is bonded to a different negatively charged ion. The subscript numbers in the formulas indicate the ratio of calcium ions to the other ions needed to achieve a neutral charge. For example, in Calcium Chloride (CaCl2), one calcium ion (+2 charge) is bonded to two chloride ions (-1 charge each) to create a neutral compound.
