Question

Write the balanced chemical equation and identify the type of reaction. (i) Iron (III) oxide react with aluminium and gives molten iron and aluminium oxide (ii) Potassium chloride is mixed with silver nitrate to form silver chloride and potassium nitrate. (iii) Sodium carbonate react with hydrochloric acid to give sodium chloride and sodium hydrogen carbonate. (iv) A solution of potassium iodide is added to a solution of lead nitrate. (v) When cold water is added to sodium metal gives sodium hydroxide and hydrogen gas

Answer 1

1. Fe2O3 + 2AL=2Fe+Al2O3 (2) 3Mg+N2=Mg3N2 (3) 2KI+Cl2=2KCl+I2 (4)C2H5OH+3O2=2CO2+3H2O

Answer 2

1. fe2o3+2al---al2o3+2fe
2.kcl+agno3---agcl2+kno3