The equation 6HNO3 + 2CoS -> 4NO2 + 2H2O + 2Co(NO3)2 + S

  1. Detailed information about the chemical equation

The above chemical equation presents the process in which a strong acid, HNO3, reacts with CoS salt to produce NO2 gas, H2O, Co(NO3)2 salt, and sulfur.

  1. Reaction conditions

The specific conditions for this reaction are not clearly specified, but generally, the substances must be mixed together in a suitable environment and have sufficient temperature and pressure for the reaction to occur.

  1. Reaction process

When nitric acid (HNO3) reacts with Cobalt sulfide (CoS), they form Nitrogen dioxide (NO2) gas, water (H2O), Cobalt(II) nitrate salt (Co(NO3)2), and sulfur (S).

  1. Phenomenon occurred

When the reaction occurs, the release of reddish-brown NO2 gas can be observed, as well as the formation of the other products. It is important to note, the NO2 gas is highly toxic and can cause irritation to the respiratory system, so this reaction should be carried out in a controlled environment with adequate personal protection.

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