Potassium chlorate (KClO3) decomposes into potassium chloride and oxygen upon heating. What is the theoretical yield of oxygen when 75.0 g of KClO3 decomposes? If 22.7 g of oxygen is actually obtained when 75.0 g of KClO3 is heated, what is the percent yield of this reaction? 2 KClO3 → 2 KCl + 3 O2 moles of KClO3 theoretical moles of O2 produced theoretical grams of O2 produced percent yield

Why is the bond angle in a water molecule less than the bond angle of methane? a. the central oxygen atom in water has two lone pairs of electrons, whereas the central carbon atom in methane has no lone pairs. b. the central hydrogen atom in water has one lone pair of electrons, whereas the central carbon atom in methane has two lone pairs. c. the central oxygen atom in water has four lone pairs of electrons, whereas the central carbon atom in methane has only one lone pair. d. the central oxygen atom exerts more repulsive force on surrounding atoms than the central carbon atom in methane does. reset next