Ch.14 Neutralization Reactions Textbook (pps.487-489) Neutralization Reaction

A. Neutralization Reaction Chemical reaction between an acid and a base. Products are a salt (ionic compound) and water.

A. Neutralization Reaction ACID + BASE  SALT + WATER HCl + NaOH  NaCl + H2O = Neutralization does not always mean pH = 7.

A. Neutralization Reaction KOH + HNO3  H2O + KNO3 Acid? Base? Salt? HNO3 KOH KNO3

Writing neutralization equations When acids and bases are mixed, a salt forms NaOH + HCl  H2O + NaCl base + acid  water + salt Ca(OH)2 + H2SO4  2H2O + CaSO4 base acid water salt

Step 1: write out the reactants LiOH(aq) + H2CO3(aq)  Question: Write the chemical reaction when lithium hydroxide is mixed with carbonic acid. Step 1: write out the reactants LiOH(aq) + H2CO3(aq)  Step 2: determine products … H2O and Li+(CO3)2- LiOH(aq) + H2CO3(aq)  Li2CO3(aq) + H2O(l) Step 3: balance the equation 2LiOH(aq) + H2CO3(aq)  Li2CO3(aq) + 2H2O(l)

Write balanced chemical equations for these neutralization reactions. Learning Check Write balanced chemical equations for these neutralization reactions. iron(II) hydroxide + phosphoric acid Ba(OH)2(aq) + HCl(aq) calcium hydroxide + nitric acid Al(OH)3(aq) + H2SO4(aq) ammonium hydroxide + hydrosulfuric acid KOH(aq) + HClO2(aq)

SOLUTIONS a) 3Fe(OH)2 (aq) + 2H3PO4 (aq)  Fe3(PO4)2 (aq) + 6H2O (l) b) Ba(OH)2 (aq) + 2HCl (aq)  BaCl2 (aq) + 2H2O (l) c) Ca(OH)2 (aq) + 2HNO3 (aq)  Ca(NO3)2 (aq) + 2H2O (l) 2Al(OH)3 (aq) + 3H2SO4 (aq)  Al2(SO4)3 (aq) + 6H2O (l)

SOLUTIONS e) 2NH4OH (aq) + H2S (aq)  (NH4)2S (aq) + 2H2O (l) f) KOH (aq) + HClO2 (aq)  KClO2 (aq) + H2O (l)