The equation 2KNO3 -> 2KNO2 + O2

  1. Detailed information about the 2KNO3 -> 2KNO2 + O2equation ->
    The equation illustrates the decomposition of potassium nitrate (KNO3) when it is heated, producing potassium nitrite (KNO2) and oxygen gas (O2). The mass of both sides of the equation is conserved, indicating that 2 molecules of KNO3 produce 2 molecules of KNO2 and 1 molecule of O2.

  2. Reaction conditions
    This reaction occurs when heating potassium nitrate, usually at a temperature of around 400 degrees Celsius.

  3. Reaction process
    When potassium nitrate is heated, it decomposes to create potassium nitrite and oxygen gas. This is a thermodynamic decomposition reaction, meaning the reaction only occurs when heat is supplied.

  4. Phenomena occurring
    During the reaction process, you will see the solid potassium nitrate transform into another solid, potassium nitrite, and oxygen gas is released. If performed under laboratory conditions, you might see the oxygen gas generated as it causes a flame to burn brighter.

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