Input interpretation
bromine + potassium ⟶ potassium bromide
Balanced equation
Balance the chemical equation algebraically: + ⟶ Add stoichiometric coefficients, c_i, to the reactants and products: c_1 + c_2 ⟶ c_3 Set the number of atoms in the reactants equal to the number of atoms in the products for Br and K: Br: | 2 c_1 = c_3 K: | c_2 = c_3 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 = 2 c_3 = 2 Substitute the coefficients into the chemical reaction to obtain the balanced equation: Answer: | | + 2 ⟶ 2
Structures
+ ⟶
Names
bromine + potassium ⟶ potassium bromide
Chemical names and formulas
| bromine | potassium | potassium bromide Hill formula | Br_2 | K | BrK name | bromine | potassium | potassium bromide IUPAC name | molecular bromine | potassium | potassium bromide
Substance properties
| bromine | potassium | potassium bromide molar mass | 159.81 g/mol | 39.0983 g/mol | 119 g/mol phase | liquid (at STP) | solid (at STP) | solid (at STP) melting point | -7.2 °C | 64 °C | 734 °C boiling point | 58.8 °C | 760 °C | 1435 °C density | 3.119 g/cm^3 | 0.86 g/cm^3 | 2.75 g/cm^3 solubility in water | insoluble | reacts | soluble surface tension | 0.0409 N/m | | dynamic viscosity | 9.44×10^-4 Pa s (at 25 °C) | |
Units
