Given the balanced equation below. Fe2O3(s) + 3 CO(g) → 2 Fe(s) + 3 CO2(g) ΔHorxn= −23.0 kJ Compound ΔHof (kJ/mol) at 298 K CO −110.5 CO2 −393.5 Determine whether each statement is true or false using the provided drop-down menus. 1) The standard enthalpy of formation for Fe2O3 is −826 kJ. 2) If 1.2 moles of Fe2O3 react, the energy change of the reaction (qrxn) is −23.0 kJ. 3) The reaction releases energy to the surroundings.

You are attempting to recrystallize a crude product mixture. you add the appropriate amount of hot solvent and are allowing the solution to slowly cool to room temperature. however, at room temperature no crystals have appeared, which of the following methods should be used to induce crystallization? choose all correct answers. a) place the flask in an ice bath. b) swirl the contents of the flask. c) add a small seed crystal of the desired product. d) scratch the inside of the glassware using a stir rod. it can be multiple choices