Input interpretation
oxygen + strontium ⟶ strontium oxide
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 O and Sr: O: | 2 c_1 = c_3 Sr: | 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
oxygen + strontium ⟶ strontium oxide
Reaction thermodynamics
Enthalpy
| oxygen | strontium | strontium oxide molecular enthalpy | 0 kJ/mol | 0 kJ/mol | -592 kJ/mol total enthalpy | 0 kJ/mol | 0 kJ/mol | -1184 kJ/mol | H_initial = 0 kJ/mol | | H_final = -1184 kJ/mol ΔH_rxn^0 | -1184 kJ/mol - 0 kJ/mol = -1184 kJ/mol (exothermic) | |
Chemical names and formulas
| oxygen | strontium | strontium oxide Hill formula | O_2 | Sr | OSr name | oxygen | strontium | strontium oxide IUPAC name | molecular oxygen | strontium | oxostrontium
Substance properties
| oxygen | strontium | strontium oxide molar mass | 31.998 g/mol | 87.62 g/mol | 103.6 g/mol phase | gas (at STP) | solid (at STP) | solid (at STP) melting point | -218 °C | 757 °C | 2430 °C boiling point | -183 °C | 1384 °C | density | 0.001429 g/cm^3 (at 0 °C) | 2.6 g/cm^3 | 4.7 g/cm^3 solubility in water | | | slightly soluble surface tension | 0.01347 N/m | | dynamic viscosity | 2.055×10^-5 Pa s (at 25 °C) | | odor | odorless | |
Units
