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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(NO 3 ) → Al( NO 3 ) + Fe. Metals can replace H
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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