#1 Sodium teatraborate reacts according to the following equation:
4H3BO3 + 2NaOH yeilds 7H2O + Na2B4O7
How much boric acid is needed to make 150 grams of sodium tetraborate?
#2 Calcium oxide can be prepared by heating calcium in oxygen. How much calcium would be needed to make 15 grams of calcium oxide this way?
#3 How much magnesium sulfate is needed to react completely with 145 grams of sodium chloride?
#4 How much sodium sulfate would be created in this reaction?
#5 How much silver bromide can be precipitated by the action of 15 grams of silver nitrate on an excess of sodium bromide?
#6. Seventy-five grams of zinc are added to 120 grams of sulfuric acid. how much hydrogen gas is produced?
#7 Sulfur dioxide can be combined with oxygen to produce sulfur trioxide. How many grams of sulfur dioxide could react with 100 grams of oxygen this way.?
#8 Calcium oxide and water can be produced by heating calcium hydroxide. How much calcium hydroxide would be needed to produce 15 grams of calcium oxide?
#9 Aluminum metal reacts with sulfuric acid to produce hydrogen. How many grams of sulfuric acid will completely react with 400 grams of aluminum?
#10 100 grams of lithium metal are dropped into water to produce hydrogen and lithium hydroxide.. How much hydrogen is produced?