AB + CD AD + CB → compound compound new compound new compound The positive ion of one compound switches place with the positive part of the other compound. at an Let’s look example of a double replacement reaction between sodium hydroxide and hydrochloric acid: NaOH + HCl NaCl + HOH → The sodium and hydrogen change places and two new compounds form, NaCl and HOH (water). Example #1) BaCl2 + Na2SO4 BaSO4 + 2NaCl → barium sodium barium sodium chloride sulfate sulfate chloride 141. Identifying Double Replacement Reactions: A Double Not a Double Equation Replacement Replacement Reaction Reaction a. Mg(OH)2 + 2HCl MgCl2 + 2H2O → b. C6H10O5 +H2O C6H12O6 → c. Na2SO4 + BaCl2 2NaCl + BaSO4 → d. 3Mg + N2 Mg3N2 → e. H2SO4 + BaCl2 2HCl + BaSO4 → f. CH4 + 2O2 CO2 + 2H2O → ZnCO3 ZnO + CO2 g. → CuSO4 + H2S H2SO4 + CuS h. → NH4NO3 2H2O + N2O i. → C6H12 + 9O2 6CO2 + 6H2O j. → 142. the following reactions as Synthesis (Syn), Decomposition (Decomp), Single Replacement Identify (√) (SR) , Double Replacement (DR) , Other
AB + CD → AD + CB compound compound new compound new compound The positive ion of one compound switches place with the positive part of the other compound. Let’s look at an example of a double replacement reaction between sodium hydroxide and hydrochloric acid: NaOH + HCl → NaCl + HOH The sodium and hydrogen change places and two new compounds form, NaCl and HOH (water). Example #1) BaCl2 + Na2SO4 → BaSO4 + 2NaCl barium sodium barium sodium chloride sulfate sulfate chloride 141. Identifying Double Replacement Reactions: Equation A Double Replacement Reaction Not a Double Replacement Reaction a. Mg(OH)2 + 2HCl → MgCl2 + 2H2O b. C6H10O5 +H2O → C6H12O6 c. Na2SO4 + BaCl2 → 2NaCl + BaSO4 d. 3Mg + N2 → Mg3N2 e. H2SO4 + BaCl2 → 2HCl + BaSO4 f. CH4 + 2O2 → CO2 + 2H2O g. ZnCO3 → ZnO + CO2 h. CuSO4 + H2S → H2SO4 + CuS i. NH4NO3 → 2H2O + N2O j. C6H12 + 9O2 → 6CO2 + 6H2O 142. Identify (√) the following reactions as Synthesis (Syn), Decomposition (Decomp), Single Replacement (SR) , Double Replacement (DR) , Other