The equation 2Ca(NO2)2 -> 2CaO + 4NO2 + O2

  1. Detailed information about the equation 2Ca(NO2)2 -> 2CaO + 4NO2 + O2 -> :

The above chemical equation represents the thermal decomposition reaction of calcium nitrite (Ca(NO2)2). In this reaction, calcium nitrite is decomposed to produce calcium oxide (CaO), nitrogen dioxide (NO2) and oxygen (O2).

  1. Reaction conditions:

This reaction occurs at high temperatures.

  1. The reaction process:

When the temperature is high enough, the molecules of calcium nitrite (Ca(NO2)2) decompose into calcium oxide (CaO), nitrogen dioxide (NO2) and oxygen (O2). This process is an oxidation-reduction reaction, where the nitrogen in calcium nitrite is oxidized from an oxidation state of +3 to +4, while the oxygen is reduced from an oxidation state of -2 to 0.

  1. The phenomenon that occurs:

When the temperature is high enough, the white solid of calcium nitrite gradually turns into the white solid of calcium oxide. Simultaneously, it generates reddish-brown nitrogen dioxide gas and oxygen.

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