According to the following balanced reaction, how many moles of CaO are required to exactly react with 4.33 moles of H2O?
CaO(s) + H2O(I)→ Ca(OH)2(s)
From the balanced reaction, the stoichiometry is 1 mole of CaO reacts with 1 mole of H2O to form 1 mole of Ca(OH)2.
Therefore, 4.33 moles of H2O will require 4.33 moles of CaO to completely react.