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H2O + I2 + H2SO3 = H2SO4 + HI

Input interpretation

water + iodine + sulfurous acid ⟶ sulfuric acid + hydrogen iodide
water + iodine + sulfurous acid ⟶ sulfuric acid + hydrogen iodide

Balanced equation

Balance the chemical equation algebraically:  + + ⟶ +  Add stoichiometric coefficients, c_i, to the reactants and products: c_1 + c_2 + c_3 ⟶ c_4 + c_5  Set the number of atoms in the reactants equal to the number of atoms in the products for H, O, I and S: H: | 2 c_1 + 2 c_3 = 2 c_4 + c_5 O: | c_1 + 3 c_3 = 4 c_4 I: | 2 c_2 = c_5 S: | c_3 = c_4 Since the coefficients are relative quantities and underdetermined, choose a coefficient to set arbitrarily. To keep the coefficients small, the arbitrary value is ordinarily one. For instance, set c_1 = 1 and solve the system of equations for the remaining coefficients: c_1 = 1 c_2 = 1 c_3 = 1 c_4 = 1 c_5 = 2 Substitute the coefficients into the chemical reaction to obtain the balanced equation: Answer: |   | + + ⟶ + 2
Balance the chemical equation algebraically: + + ⟶ + Add stoichiometric coefficients, c_i, to the reactants and products: c_1 + c_2 + c_3 ⟶ c_4 + c_5 Set the number of atoms in the reactants equal to the number of atoms in the products for H, O, I and S: H: | 2 c_1 + 2 c_3 = 2 c_4 + c_5 O: | c_1 + 3 c_3 = 4 c_4 I: | 2 c_2 = c_5 S: | c_3 = c_4 Since the coefficients are relative quantities and underdetermined, choose a coefficient to set arbitrarily. To keep the coefficients small, the arbitrary value is ordinarily one. For instance, set c_1 = 1 and solve the system of equations for the remaining coefficients: c_1 = 1 c_2 = 1 c_3 = 1 c_4 = 1 c_5 = 2 Substitute the coefficients into the chemical reaction to obtain the balanced equation: Answer: | | + + ⟶ + 2

Structures

 + + ⟶ +
+ + ⟶ +

Names

water + iodine + sulfurous acid ⟶ sulfuric acid + hydrogen iodide
water + iodine + sulfurous acid ⟶ sulfuric acid + hydrogen iodide

Chemical names and formulas

 | water | iodine | sulfurous acid | sulfuric acid | hydrogen iodide Hill formula | H_2O | I_2 | H_2O_3S | H_2O_4S | HI name | water | iodine | sulfurous acid | sulfuric acid | hydrogen iodide IUPAC name | water | molecular iodine | sulfurous acid | sulfuric acid | hydrogen iodide
| water | iodine | sulfurous acid | sulfuric acid | hydrogen iodide Hill formula | H_2O | I_2 | H_2O_3S | H_2O_4S | HI name | water | iodine | sulfurous acid | sulfuric acid | hydrogen iodide IUPAC name | water | molecular iodine | sulfurous acid | sulfuric acid | hydrogen iodide