The chemical equation Zn + 2Na2SeO4 -> ZnSeO4 + 4Na.

  1. Detailed information about the equation Zn + 2Na2SeO4 -> ZnSeO4 + 4Na
    This is a chemical reaction that occurs between zinc metal (Zn) and 2 molecules of the compound sodium selenate (Na2SeO4).
    The outcome of the reaction is the formation of the compound zinc selenate (ZnSeO4) and 4 sodium atoms (Na).

  2. Reaction conditions
    The reaction usually occurs under standard temperature and pressure conditions (SATP conditions: 25 degrees Celsius and 100 kPa). The reaction environment should be neutral or mildly acidic.

  3. Reaction process
    The reaction begins when the zinc atom (Zn) comes into contact with the sodium selenate compound (Na2SeO4). The zinc atom forms a bond with selenium and oxygen in sodium selenate, forming zinc selenate (ZnSeO4). During this process, the sodium atom (Na) is separated.

  4. Phenomena that occur
    The color change of the solution can be observed when the reaction occurs. Initially, the solution has the white color of sodium selenate and the gray color of zinc metal. When the reaction occurs, the color of the solution will turn to the pale yellow of zinc selenate.
    In addition, sodium atoms will be separated in the form of gas.

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