CHM 2045C Sample Test Name:_____________________

 

Module Eight: Part G Rewriting Equations Ionically 10 points

Rewrite the following (unbalanced) equations ionically, cancel spectator ions and then balance the net ionic reactions.

 

Show as ions: soluble salts and strong acids; leave as molecules/formula units insoluble salts, weak acids, covalent molecules.

 

Strong acids are: Perchloric Acid; Hydrochloric Acid; Nitric Acid; Sulfuric Acid; Hydrobromic Acid; Hydroiodic Acid

 

1. KOH (aq) + HNO3(aq) KNO3(aq) + HOH(l)

 

 

 

 

 

 

 

2. CuSO4 (aq) + Na2CO3 (aq) CuCO3 (s) + Na2SO4 (aq)

 

 

 

 

 

 

 

3. NaOH (aq) + NH4NO3 (aq) NaNO3 (aq) + NH3 (g) + HOH (l)

 

 

 

 

 

 

 

4. BaBr2 (aq) + ZnSO4 (aq) BaSO4 (s) + ZnBr2 (aq)

 

 

 

 

 

 

 

5. Cr(OH)2 (s) + HCl (aq)