Constants Periodic Table Part A Consider the following unbalanced equation: Al(s) + O2(g) + Al2O3(s) Write the balanced chemical equation. Express your answer as a chemical equation. Identify all of the phases in your answer. | ? A chemical reaction does not occur for this question. Submit Request Answer Part B How many moles of O2 are needed to react with 8.50 moles of Al? Express your answer with the appropriate units. HA ? Vo = Value Units Submit Request