CHM 1025C Module Eight Sample Exam

Part C: Writing Ionization Reactions 5 points

(Strong Acids/Weak Acids/Strong Bases/Weak Bases/

Soluble Salts and Oxides of Nonmetals and Metals)

Write the ionization reactions for the following:

(1) Strong Acid: HCl (aq)

HCl (aq) à H¹⁺ (aq) + Cl^1- (aq)

or

HCl (aq) + H₂O (l) à H₃O ¹⁺ (aq) + Cl ^1- (aq)

(2) Weak Acid: HC₂H₃O₂ (aq)

HC₂H₃O₂ (aq) ç à H¹⁺ (aq) + C₂H₃O₂^1- (aq)

or

HC₂H₃O₂ (aq) + H₂O (l) ç à H₃O ¹⁺ (aq) + C₂H₃O₂^1- (aq)

(3) Strong Base: NaOH (aq)

NaOH (aq) à Na ¹⁺ (aq) + OH ^1- (aq)

(4) Weak Base: NH₃ (aq)

NH₃ (aq) + H₂O (l) ß à NH₄ ¹⁺ (aq) + OH ^1- (aq)

(5) Soluble Salts: NaCl (aq)

NaCl (aq) à Na ¹⁺ (aq) + Cl ^1- (aq)

(6) Oxides of Nonmetals: CO₂ (g)

CO₂ (g) + H₂O (l) ß à H₂CO₃ (aq)

H₂CO₃ (aq) ß à H¹⁺ (aq) + HCO3₂^1- (aq)

(7) Oxides of Metals: CaO (s)

CaO (s) + H₂O (l) à Ca(OH)₂ (s)