Input interpretation
potassium hydroxide + bromine + KCrO2 ⟶ water + potassium bromide + potassium chromate
Balanced equation
Balance the chemical equation algebraically: + + KCrO2 ⟶ + + Add stoichiometric coefficients, c_i, to the reactants and products: c_1 + c_2 + c_3 KCrO2 ⟶ c_4 + c_5 + c_6 Set the number of atoms in the reactants equal to the number of atoms in the products for H, K, O, Br and Cr: H: | c_1 = 2 c_4 K: | c_1 + c_3 = c_5 + 2 c_6 O: | c_1 + 2 c_3 = c_4 + 4 c_6 Br: | 2 c_2 = c_5 Cr: | c_3 = c_6 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_3 = 1 and solve the system of equations for the remaining coefficients: c_1 = 4 c_2 = 3/2 c_3 = 1 c_4 = 2 c_5 = 3 c_6 = 1 Multiply by the least common denominator, 2, to eliminate fractional coefficients: c_1 = 8 c_2 = 3 c_3 = 2 c_4 = 4 c_5 = 6 c_6 = 2 Substitute the coefficients into the chemical reaction to obtain the balanced equation: Answer: | | 8 + 3 + 2 KCrO2 ⟶ 4 + 6 + 2
Structures
+ + KCrO2 ⟶ + +
Names
potassium hydroxide + bromine + KCrO2 ⟶ water + potassium bromide + potassium chromate
Chemical names and formulas
| potassium hydroxide | bromine | KCrO2 | water | potassium bromide | potassium chromate formula | | | KCrO2 | | | Hill formula | HKO | Br_2 | CrKO2 | H_2O | BrK | CrK_2O_4 name | potassium hydroxide | bromine | | water | potassium bromide | potassium chromate IUPAC name | potassium hydroxide | molecular bromine | | water | potassium bromide | dipotassium dioxido-dioxochromium
Substance properties
| potassium hydroxide | bromine | KCrO2 | water | potassium bromide | potassium chromate molar mass | 56.105 g/mol | 159.81 g/mol | 123.09 g/mol | 18.015 g/mol | 119 g/mol | 194.19 g/mol phase | solid (at STP) | liquid (at STP) | | liquid (at STP) | solid (at STP) | solid (at STP) melting point | 406 °C | -7.2 °C | | 0 °C | 734 °C | 971 °C boiling point | 1327 °C | 58.8 °C | | 99.9839 °C | 1435 °C | density | 2.044 g/cm^3 | 3.119 g/cm^3 | | 1 g/cm^3 | 2.75 g/cm^3 | 2.73 g/cm^3 solubility in water | soluble | insoluble | | | soluble | soluble surface tension | | 0.0409 N/m | | 0.0728 N/m | | dynamic viscosity | 0.001 Pa s (at 550 °C) | 9.44×10^-4 Pa s (at 25 °C) | | 8.9×10^-4 Pa s (at 25 °C) | | odor | | | | odorless | | odorless
Units
