Examples of bases with formula old name and new name

Here are some examples of bases with their old names and new names:

1. Potassium hydroxide (KOH):
   • Old name: Caustic potash
   • New name: Potassium hydroxide (KOH)
2. Sodium hydroxide (NaOH):
   • Old name: Caustic soda
   • New name: Sodium hydroxide (NaOH)
3. Calcium oxide (CaO):
   • Old name: Quicklime
   • New name: Calcium oxide (CaO)
4. Magnesium oxide (MgO):
   • Old name: Magnesia
   • New name: Magnesium oxide (MgO)
5. Barium hydroxide (Ba(OH)2):
   • Old name: Baryta
   • New name: Barium hydroxide (Ba(OH)2)
6. Strontium hydroxide (Sr(OH)2):
   • Old name: Strontia
   • New name: Strontium hydroxide (Sr(OH)2)
7. Lithium hydroxide (LiOH):
   • Old name: Lithia
   • New name: Lithium hydroxide (LiOH)
8. Zinc oxide (ZnO):
   • Old name: Zinc white
   • New name: Zinc oxide (ZnO)
9. Copper(II) oxide (CuO):
   • Old name: Cupric oxide
   • New name: Copper(II) oxide (CuO)
10. Iron(III) oxide (Fe2O3):
    • Old name: Hematite
    • New name: Iron(III) oxide (Fe2O3)

Note that some of these old names are still used informally or in specific contexts, but the new names are the officially recognized and widely used names in the scientific community.