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) à KNO3(aq) + HOH(l)
2. CuSO4 (aq) + Na2CO3 (aq) à CuCO3 (s) +
Na2SO4 (aq)
3. NaOH (aq) +
NH4NO3 (aq) à
NaNO3 (aq) + NH3
(g) + HOH (l)
4. BaBr2 (aq) + ZnSO4 (aq) à BaSO4
(s) + ZnBr2 (aq)
5. Cr(OH)2
(s) +
HCl (aq) à