Input interpretation
water + potassium hydroxide + zinc ⟶ hydrogen + K2Zn(OH)4
Balanced equation
Balance the chemical equation algebraically: + + ⟶ + K2Zn(OH)4 Add stoichiometric coefficients, c_i, to the reactants and products: c_1 + c_2 + c_3 ⟶ c_4 + c_5 K2Zn(OH)4 Set the number of atoms in the reactants equal to the number of atoms in the products for H, O, K and Zn: H: | 2 c_1 + c_2 = 2 c_4 + 4 c_5 O: | c_1 + c_2 = 4 c_5 K: | c_2 = 2 c_5 Zn: | c_3 = c_5 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 = 2 c_2 = 2 c_3 = 1 c_4 = 1 c_5 = 1 Substitute the coefficients into the chemical reaction to obtain the balanced equation: Answer: | | 2 + 2 + ⟶ + K2Zn(OH)4
Structures
+ + ⟶ + K2Zn(OH)4
Names
water + potassium hydroxide + zinc ⟶ hydrogen + K2Zn(OH)4
Chemical names and formulas
| water | potassium hydroxide | zinc | hydrogen | K2Zn(OH)4 formula | | | | | K2Zn(OH)4 Hill formula | H_2O | HKO | Zn | H_2 | H4K2O4Zn name | water | potassium hydroxide | zinc | hydrogen | IUPAC name | water | potassium hydroxide | zinc | molecular hydrogen |
Substance properties
| water | potassium hydroxide | zinc | hydrogen | K2Zn(OH)4 molar mass | 18.015 g/mol | 56.105 g/mol | 65.38 g/mol | 2.016 g/mol | 211.6 g/mol phase | liquid (at STP) | solid (at STP) | solid (at STP) | gas (at STP) | melting point | 0 °C | 406 °C | 420 °C | -259.2 °C | boiling point | 99.9839 °C | 1327 °C | 907 °C | -252.8 °C | density | 1 g/cm^3 | 2.044 g/cm^3 | 7.14 g/cm^3 | 8.99×10^-5 g/cm^3 (at 0 °C) | solubility in water | | soluble | insoluble | | surface tension | 0.0728 N/m | | | | dynamic viscosity | 8.9×10^-4 Pa s (at 25 °C) | 0.001 Pa s (at 550 °C) | | 8.9×10^-6 Pa s (at 25 °C) | odor | odorless | | odorless | odorless |
Units
