KnowraCalcium oxideLinked fromLinked fromThe 11 pages that link to Calcium oxide, each with the reason it gives.All 11Broader topic 1Related 6Compared with 4Magnesium oxideCompared with: It is a closely related alkaline-earth oxide, but reacts with water more vigorously.Potassium oxideCompared with: CaO has a one-to-one formula because calcium forms 2+ ions.Calcium sulfideCompared with: Replacing sulfide with oxide yields a related calcium compound with different reactivity and applications.Strontium oxideCompared with: Quicklime shares SrO’s basic chemistry but is far more widely used.