The chemical equation BaS + 2H2O2 -> BaSO4 + 4H2O

  1. Detailed information about the equation BaS + 2H2O2 -> BaSO4 + 4H2O:

    • In this equation, barium sulfide (BaS) reacts with hydrogen peroxide (H2O2) to produce barium sulfate (BaSO4) and water (H2O). Barium sulfate is a white solid, insoluble in water.
    • The coefficients in the equation show the relationship between the number of moles of reactants and products. For example, one mole of BaS reacts with two moles of H2O2 to produce one mole of BaSO4 and four moles of H2O.

  2. Reaction Conditions:

    • Reaction conditions sometimes may include acidic or alkaline environments. However, in this case, the reaction can occur in a neutral environment.
    • Temperature sometimes needs to be adjusted to ensure an efficient reaction.

  3. Reaction Process:

    • BaS reacts with H2O2, transforming into BaSO4 and H2O.
    • In this process, BaS is oxidized into BaSO4, while H2O2 is reduced into H2O.

  4. Observed Phenomena:

    • During the reaction process, the change from gas or liquid to solid (BaSO4) and steam (H2O) can clearly be observed.
    • The specific phenomena that an observer might see are the blending of liquids, followed by the appearance of a white solid (BaSO4) and the emergence of gas (H2O).

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