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.

The activity series is shown in the attached picture. if the element is below the other, then you can displace the other. following the activity series as a guide, the reactions are as follows: nickel and aluminum chloride3 ni + 2 alcl₃  → 3 nicl₂ + 2 albarium and copper bromideba + cubr  →  no reaction because cu is less oxidizable than bapotassium nitrate and aluminum3 kno₃ + al  → al(no₃)₃ + 3 ksodium phosphate and zincnaso₄ + zn  → znso₄ + na

The reaction 2kalsi3o8 + 2(h+ + hco3-) + h2o  →  al2si2o5(oh)4 + 2k+ + 2hco3- + 4sio2 shows that feldspar kalsi3o8 is chemically altered by hydrolysis to form chalky-looking clay mineral kaolinite al2si2o5(oh)4. the chemical breakdown of potassium feldspar due to exposure to acidic water results to the mineral binding with the water molecule to become kaolinite with silica and potassium and bicarbonate ions in solution.