The equation 2HNO3 + 4H2SO3 -> 4H2SO4 + 2NO + 3H2O

  1. Detailed information about the equation 2HNO3 + 4H2SO3 -> 4H2SO4 + 2NO + 3H2O

    • The left side of the equation includes the reactants, namely nitric acid (HNO3) and sulfurous acid (H2SO3).
    • The right side of the equation are the products after the reaction, including sulfuric acid (H2SO4), nitrogen monoxide (NO) and water (H2O).
    • The equation has been balanced, meaning that the total number of atoms of each type of element on both sides of the equation is equal.

  2. Reaction conditions

    • To occur, the reaction requires contact between the reactants.
    • The reaction typically occurs at room temperature.

  3. Reaction process

    • 2 moles of nitric acid will react with 4 moles of sulfurous acid to produce 4 moles of sulfuric acid, 2 moles of nitrogen monoxide and 3 moles of water.

  4. Observed phenomena

    • During the reaction process, the disappearance of the reactants and the appearance of new products can be observed.
    • Specific phenomena may include color change, gas formation (nitrogen monoxide) and the formation of solid matter (sulfuric acid).

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