There are four main types of chemical reactions: synthesis, decomposition, single displacement, and double displacement. Here are examples of each type, along with their balanced chemical equations:1. Synthesis Combination Reaction:In a synthesis reaction, two or more reactants combine to form a single product.Example: Formation of water from hydrogen and oxygenUnbalanced equation: H2 + O2 H2OBalanced equation: 2H2 + O2 2H2O2. Decomposition Reaction:In a decomposition reaction, a single reactant breaks down into two or more simpler products.Example: Decomposition of potassium chlorate into potassium chloride and oxygenUnbalanced equation: KClO3 KCl + O2Balanced equation: 2KClO3 2KCl + 3O23. Single Displacement Substitution Reaction:In a single displacement reaction, one element in a compound is replaced by another element.Example: Displacement of copper by zinc in a copper sulfate solutionUnbalanced equation: Zn + CuSO4 ZnSO4 + CuBalanced equation: Zn + CuSO4 ZnSO4 + Cu4. Double Displacement Metathesis Reaction:In a double displacement reaction, the ions of two compounds exchange places, forming two new compounds.Example: Reaction between sodium chloride and silver nitrate to form sodium nitrate and silver chlorideUnbalanced equation: NaCl + AgNO3 NaNO3 + AgClBalanced equation: NaCl + AgNO3 NaNO3 + AgCl