Input interpretation
oxygen + soda ash + FeCr2O7 ⟶ carbon dioxide + iron(III) oxide + sodium chromate
Balanced equation
Balance the chemical equation algebraically: + + FeCr2O7 ⟶ + + Add stoichiometric coefficients, c_i, to the reactants and products: c_1 + c_2 + c_3 FeCr2O7 ⟶ c_4 + c_5 + c_6 Set the number of atoms in the reactants equal to the number of atoms in the products for O, C, Na, Fe and Cr: O: | 2 c_1 + 3 c_2 + 7 c_3 = 2 c_4 + 3 c_5 + 4 c_6 C: | c_2 = c_4 Na: | 2 c_2 = 2 c_6 Fe: | c_3 = 2 c_5 Cr: | 2 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_1 = 1 and solve the system of equations for the remaining coefficients: c_1 = 1 c_2 = 8 c_3 = 4 c_4 = 8 c_5 = 2 c_6 = 8 Substitute the coefficients into the chemical reaction to obtain the balanced equation: Answer: | | + 8 + 4 FeCr2O7 ⟶ 8 + 2 + 8
Structures
+ + FeCr2O7 ⟶ + +
Names
oxygen + soda ash + FeCr2O7 ⟶ carbon dioxide + iron(III) oxide + sodium chromate
Chemical names and formulas
| oxygen | soda ash | FeCr2O7 | carbon dioxide | iron(III) oxide | sodium chromate formula | | | FeCr2O7 | | | Hill formula | O_2 | CNa_2O_3 | Cr2FeO7 | CO_2 | Fe_2O_3 | CrNa_2O_4 name | oxygen | soda ash | | carbon dioxide | iron(III) oxide | sodium chromate IUPAC name | molecular oxygen | disodium carbonate | | carbon dioxide | | disodium dioxido(dioxo)chromium
Substance properties
| oxygen | soda ash | FeCr2O7 | carbon dioxide | iron(III) oxide | sodium chromate molar mass | 31.998 g/mol | 105.99 g/mol | 271.83 g/mol | 44.009 g/mol | 159.69 g/mol | 161.97 g/mol phase | gas (at STP) | solid (at STP) | | gas (at STP) | solid (at STP) | solid (at STP) melting point | -218 °C | 851 °C | | -56.56 °C (at triple point) | 1565 °C | 780 °C boiling point | -183 °C | 1600 °C | | -78.5 °C (at sublimation point) | | density | 0.001429 g/cm^3 (at 0 °C) | | | 0.00184212 g/cm^3 (at 20 °C) | 5.26 g/cm^3 | 2.698 g/cm^3 solubility in water | | soluble | | | insoluble | surface tension | 0.01347 N/m | | | | | dynamic viscosity | 2.055×10^-5 Pa s (at 25 °C) | 0.00355 Pa s (at 900 °C) | | 1.491×10^-5 Pa s (at 25 °C) | | odor | odorless | | | odorless | odorless |
Units
