The chemical equation CaO + SO2 -> CaSO3

  1. Detailed information about the Chemical Equation:

    • CaO, also known as calcium oxide, is a white, odorless, tasteless solid that is insoluble in water. It is commonly used in industries for the production of steel, paper, pesticides, construction, and many other applications.
    • SO2, or sulfur dioxide, is a colored and distinctly smelling chemical compound. It often appears during the combustion of sulfur-containing substances.
    • CaSO3, or calcium sulfite, is a white, odorless, tasteless solid that is slightly soluble in water. It is commonly used in the paper industry, the pesticide industry, and the glass manufacturing industry.

  2. Reaction Conditions:

    • The reaction occurs at room temperature.
    • The pH of the reaction environment should be controlled at a neutral or slightly alkaline level.

  3. Reaction Process:

    • In this reaction, calcium oxide (CaO) reacts with sulfur dioxide (SO2) to form calcium sulfite (CaSO3).
    • This reaction belongs to the type of exchange reactions, in which two reactants exchange atoms or groups of atoms with each other to form new products.

  4. Phenomena Occurring:

    • Under the reaction conditions, calcium oxide (CaO) and sulfur dioxide (SO2) react with each other to produce a white solid – calcium sulfite (CaSO3).
    • A phenomenon of white smoke rising from the reaction can be observed.

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