According to the following reaction, how many moles of mercury(II) oxide are necessary to form 0.300 moles oxygen gas? mercury (II) oxide (s) mercury (I) + oxygen (g) moles mercury(II) oxide 2 more group attempts remaining According to the following reaction, how many moles of zinc hydroxide will be formed upon the complete reaction of 0.526 moles zinc oxide with excess water? zinc oxide (s) + water (I) zinc hydroxide (aq) moles zinc hydroxide 2 more group attempts remaining According to the following reaction, how many moles of calcium sulfate will be formed upon the complete reaction of 0.688 moles sulfuric acid with excess calcium hydroxide? sulfuric acid (aq) + calcium hydroxide (s) calcium sulfate (s) + water (I) moles calcium sulfate 2 more group attempts remaining