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1. Powdered zinc metal reacts with sulphur (S8) when heated to produce zinc sulphide. 8Zn+S88ZnS 2. What mass of product can be produced with 25g of zinc? [3] 3. What is the actual yield if the percentage yield was 80% ? [2] 1. The thermite reaction has been used to weld railroad rails, make bombs, and ignite solid rocket fuel. The equation of the reaction is: Fe2O3+2Al2Fe+Al2O3 2. What is the theoretical yield of iron if 100.0g of Fe2O3 is used? [3] 3. What is the percentage yield if 52.3g of iron is actually produced?[1]