Input interpretation
aluminum + Cr(NO3)2 ⟶ aluminum nitrate + chromium
Balanced equation
Balance the chemical equation algebraically: + Cr(NO3)2 ⟶ + Add stoichiometric coefficients, c_i, to the reactants and products: c_1 + c_2 Cr(NO3)2 ⟶ c_3 + c_4 Set the number of atoms in the reactants equal to the number of atoms in the products for Al, Cr, N and O: Al: | c_1 = c_3 Cr: | c_2 = c_4 N: | 2 c_2 = 3 c_3 O: | 6 c_2 = 9 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 = 3/2 c_3 = 1 c_4 = 3/2 Multiply by the least common denominator, 2, to eliminate fractional coefficients: c_1 = 2 c_2 = 3 c_3 = 2 c_4 = 3 Substitute the coefficients into the chemical reaction to obtain the balanced equation: Answer: | | 2 + 3 Cr(NO3)2 ⟶ 2 + 3
Structures
+ Cr(NO3)2 ⟶ +
Names
aluminum + Cr(NO3)2 ⟶ aluminum nitrate + chromium
Chemical names and formulas
| aluminum | Cr(NO3)2 | aluminum nitrate | chromium formula | | Cr(NO3)2 | | Hill formula | Al | CrN2O6 | AlN_3O_9 | Cr name | aluminum | | aluminum nitrate | chromium IUPAC name | aluminum | | aluminum(+3) cation trinitrate | chromium
Substance properties
| aluminum | Cr(NO3)2 | aluminum nitrate | chromium molar mass | 26.9815385 g/mol | 176 g/mol | 212.99 g/mol | 51.9961 g/mol phase | solid (at STP) | | solid (at STP) | solid (at STP) melting point | 660.4 °C | | 72.8 °C | 1857 °C boiling point | 2460 °C | | | 2672 °C density | 2.7 g/cm^3 | | 1.401 g/cm^3 | 7.14 g/cm^3 solubility in water | insoluble | | | insoluble surface tension | 0.817 N/m | | | dynamic viscosity | 1.5×10^-4 Pa s (at 760 °C) | | 0.001338 Pa s (at 22 °C) | odor | odorless | | | odorless
Units
