Input interpretation
water + calcium phosphide ⟶ calcium hydroxide + phosphine
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 Set the number of atoms in the reactants equal to the number of atoms in the products for H, O, Ca and P: H: | 2 c_1 = 2 c_3 + 3 c_4 O: | c_1 = 2 c_3 Ca: | 3 c_2 = c_3 P: | 2 c_2 = 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_2 = 1 and solve the system of equations for the remaining coefficients: c_1 = 6 c_2 = 1 c_3 = 3 c_4 = 2 Substitute the coefficients into the chemical reaction to obtain the balanced equation: Answer: | | 6 + ⟶ 3 + 2
Structures
+ ⟶ +
Names
water + calcium phosphide ⟶ calcium hydroxide + phosphine
Chemical names and formulas
| water | calcium phosphide | calcium hydroxide | phosphine Hill formula | H_2O | Ca_3P_2 | CaH_2O_2 | H_3P name | water | calcium phosphide | calcium hydroxide | phosphine IUPAC name | water | calcium phosphanidylidenecalcium | calcium dihydroxide | phosphine
Substance properties
| water | calcium phosphide | calcium hydroxide | phosphine molar mass | 18.015 g/mol | 182.18 g/mol | 74.092 g/mol | 33.998 g/mol phase | liquid (at STP) | liquid (at STP) | solid (at STP) | gas (at STP) melting point | 0 °C | 0.16 °C | 550 °C | -132.8 °C boiling point | 99.9839 °C | | | -87.5 °C density | 1 g/cm^3 | 2.51 g/cm^3 | 2.24 g/cm^3 | 0.00139 g/cm^3 (at 25 °C) solubility in water | | decomposes | slightly soluble | slightly soluble surface tension | 0.0728 N/m | | | dynamic viscosity | 8.9×10^-4 Pa s (at 25 °C) | | | 1.1×10^-5 Pa s (at 0 °C) odor | odorless | | odorless |
Units
