CHM 1025C Sample Pretest 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 and strong bases; 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. Strong bases are Sodium hydroxide, potassium hydroxife, Calcium hydroxide, Barium hydroxide and Strontium hydroxide



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)