Chem 1300                  Balancing Chemical Equations               Worksheet 1

 

 

1.  Identify the type of reaction each of the following belongs to.

 

In Class Activities

 

            a.         AlCl3(aq) + Na2CO3(aq)  ® Al2(CO3)3(s) + NaCl(aq)

 

            b.         Cl2  +  P  ®  PCl3 

 

            c.         C8H18  + O2  ®  CO2 + H2O

 

            d.         Li2S  +  Br2  ®  2LiBr + S

 

            e.         H2CO3 -->  H2O  +  CO2

 

 

Outside of Class

 

            a.         Ba(C2H3O2)2(aq)  +  2HNO3(aq)  ®  Ba(NO3)2(aq)  +  2HC2H3O2(aq)

 

            b.         H2S(g)  ®  H2(g)  +  S(s)

 

            c.         Pb  +  2CuCl  ®  PbCl2  +  Cu

 

            d.         CH2CO(g)  +  2 O2(g)  ®  2 CO2(g)  +  H2O(g)

 

            e.         HCl + NaOH --> NaCl + H2O

 

 

2.  Balance the Following Equations. Remember tricks for combustion, single and double replacement reactions.

 

a. Write out and balance the following equation describing the following reaction: Barium phosphate and ammonium chlorate are produced when ammonium phosphate reacts with barium chlorate.

 

 

 

 

 

 

 

 

 

b.  Write out and balance the equation for the combustion of propane (C3H8)

 

 

 

 

 

 

 

 

 

 

 

 

 

c. Write out and balance the equation for the combustion of butane (C4H10)

 

 

 

 

 

 

 

 

 

 

 

 

 

d. Write out and balance the equation for the combustion of ethanol (C2H5OH)

 

 

 

 

 

 

 

 

 

 

 

 

e. Write out and balance the equation describing the formation of calcium phosphate from the reaction of phosphoric acid and calcium hydroxide.  Water is the other product.

 

 

 

*Do the following problems on your own time.

 

 

 

a.         ___Pb(NO3)2(aq)  + ___KI(aq)  ®  ___PbI2(s)  +  ___KNO3(aq)

 

b.         ___C8H18  +  ___O2  ®  ___CO2 +  ___H2O

 

c.         ___AlCl3(aq) + ___Na2CO3(aq)  ® ___Al2(CO3)3(s) + ___NaCl(aq)

 

d.         ___P2O5 + ___H2O  ® ___H3PO4

 

e.          ___Na3PO4  + ___Ba(NO3)2  ®  ___Ba3(PO4)2 + ___NaNO3

 

 

f.          ___Al +  ___Fe(NO3)2  --> ___Al(NO3)3  +  ___Fe

 

g.         ___Al2O3  + ___H2SO4  ®  ___Al2(SO4)3 + ___H2O

 

h.         ___H2S   +  ___SO2  ®  ___S  +  ___H2O 

 

i.          ___C9H20  + ___O2  ®  ___CO2 + ___H2O

 

j.          Decomposition of ammonium carbonate into ammonia, carbon dioxide and water.

 

 

 

 

 

 

k.         Formation of Chlorine trifluoride from chlorine and fluorine

 

 

 

 

 

 

l.          Formation of Silicon dioxide and hydrochloric acid from silicon tetrachloride and                        water

 

 

 

 

 

m.        Copper reacts with silver nitrate to form copper(II)nitrate and silver.