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THE MAGIC OF CHEMICAL REACTIONS Q1. Fill in the blanks: 1. The chemical formula of POP is 2CaSO 4 .H 2 O. 2. The chemical reaction during which H 2(g) is lost is termed as oxidation. 3. Corrosion can be prevented by using anti-rust solution. 4. When acids and alkalis react together, salt and water are formed. 5. The chemical reactions is which heat is liberated are called exothermic reactions. Q2. Match the following Reactants Products Types of reactions. Fe + S CuSO 4 + Zn 2Cu+O 2 HCl + NaOH NaCl + H 2 O 2CuO ZnSO 4 + Cu FeS Oxidation Neutralization Displacement Combination Ans Reactants Products Types of reactions. Fe + S CuSO 4 + Zn 2Cu+O 2 HCl + NaOH FeS ZnSO 4 + Cu 2CuO NaCl + H 2 O Combination Displacement Oxidation Neutralization Q3. Answer the following. 1. What is the importance of a chemical equation? Ans. i. Reactants are converted into pr