Classifying and Balancing Chemical Reactions

Learn to classify and balance chemical reactions with this chemistry worksheet!

1. Matching Practice identifying the unique reactant(s) and product(s) of each of the 5 main types of chemical reactions by matching the characteristic to the correct type of chemical reaction. Synthesis Reaction Two or more reactants combine to form a single product. Single Replacement Reaction The reactants are an element and a compound. The element switches places with one of the elements in the compound. This creates the new products which are also one element and one compound. Double Replacement Reaction The reactants are two different compounds. One element in each of the compounds switches places with each other. This creates two new products that are also two different compounds. Decomposition Reaction One reactant breaks down to form two or more products. 2. Sorting Sort each equation into the correct type of reaction. Synthesis H2 + O2 → H2O N2 + H2 → NH3 A+B → AB Decomposition KClO3 → KCl + O2 Ag2O → Ag + O2 AB → A + B Single Replacement K + MgBr2 → KBr + Mg NaCl + F2 → NaF + Cl2 AB + C → AC + B Double Replacement FeCl3 + NaOH → Fe(OH)3 + NaCl H2SO4 + NaNO2 → HNO2 + Na2SO­4 AB + CD → AC + BD 3. Balance Equation (use numbers only) 2 Sb + 3Cl2 → 2SbCl31Na2CO3 + 2HCl → 2NaCl + 1H2CO32N2 + 5O2 → 2N2O5