3. Indicate the type of reaction represented by each equation:

a. Na3PO4+3KOH→3NaOH+K3PO4
b. Pb+FeSO4→PbSO4+Fe
c. C6H12+9O2→6CO2+6H2O
d. CaCO3→CaO+CO2


4. Predict the product(s) of the following reactions.

a. AlBr3+Cl2→
b. MgI2+Mn(SO3)2→
c. RbNO3+BeF2→
d. Al+Ag2CrO4→
5. Balance the following equations:

a. B2Br6+HNO3→B(NO3)3+HBr
b. NH3+O2→NO+H2O
c. CO+H2→C8H18+H2O
d. Na3PO4+HCl→NaCl+H3PO4