In a reaction between sulfur and oxygen, the only product is 80.0 g of sulfur dioxide. Steam is the other product of the reaction. An excess of sulfuric acid reacts with 165 g of barium peroxide. A mixture of 10.0 g of powdered iron and 10.0 g sulfur is heated to its reaction temperature in an open crucible. The reactant in excess is oxidized.
Calcium hydroxide is formed by the reaction of calcium oxide and water.
A certain rocket uses butane, C4H10, as fuel. When a mass of 85 g of ethane gas, C2H6 iS buIlled completely in air, carbon dioxide and water vapor are formed.