What is ZnO? Important knowledge about ZnO.

  1. ZnO Definition:
    ZnO, also known as Zinc Oxide, is a molecular solid formed from one atom of zinc (Zn) and one atom of oxygen (O). The atomic mass of ZnO is 81.374 g/mol. ZnO does not exist as separate ions but its structure is an incomplete combination of zinc and oxygen atoms.

  2. Properties of ZnO:
    2.1 Physical properties of ZnO: It is a white, odourless solid in the form of powder, non-melting with a neutral PH.
    2.2 Chemical properties of ZnO: It is quite stable with most chemicals, reacts well with strong acid.

  3. Common chemical equations with ZnO:
    ZnO does not react with metals, salts but it can react with strong acids like HCl, H2SO4 to form zinc salts and water.

  4. ZnO Synthesis:
    4.1 Laboratory preparation of ZnO: Heating zinc in air will produce ZnO.
    4.2 Industrial preparation of ZnO: Mainly from zinc ore, through the process of thermal decomposition, oxidation, and refining.

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