The chemical equation CaS + O2 -> CaSO4

  1. The chemical equation CaS + O2 -> CaSO4representstheprocessofoxidizingCalciumsulfide(CaS)intheairtoformCalciumsulfate(CaSO4).

  2. Reaction conditions: This reaction requires high temperature and oxygen from the air to occur.

  3. Reaction process: When calcium sulfide (CaS) is burned in the air at a sufficient heat, it reacts with oxygen (O2) to form calcium sulfate (CaSO4).

  4. Phenomena occurring: When the reaction occurs, you may notice changes in color and temperature. Calcium sulfide when burned changes from white to brown due to the formation of calcium sulfate. This reaction also emits heat, meaning it is an exothermic reaction.

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