Replacement Reactions

Single Replacement One element replaces a similar element in a compound A + BX → AX + B A replaces B if A and B are similar Metals can replace less reactive metals Al + Fe(NO3) → Al(NO3) + Fe

Metals can replace H Mg + HCl → MgCl2 + H2 Na + H2O → NaOH + H2

Halogens can replace other halogens Br2 + KCl → KBr + Cl2

Single Replacement Reactions Al + Cu(NO3)2  NaCl + F2  K + H2O  Na + Mg(OH)2  Ni + FeSO4 

Double Replacement Ions of two compounds exchange places AX + BY → AY + BX Double Replacement reactions are often evidenced be the formation of a precipitate or the production of a gas

Practice HCl + AgNO3  CaCl2 + Na3PO4  Pb(NO3)2 + BaCl2  FeCl3 + NaOH  H2SO4 + NaOH  KOH + CuSO4 

Mixed Practice State the type, predict the products, and balance the following reactions: BaCl2 + H2SO4  C6H12 + O2  Zn + CuSO4  Cs + Br2  FeCO3 