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Neutralization- the reaction between an acid and a base, producing a salt and water; 

hydrochloric acid and sodium hydroxide form sodium chloride and water

HCl(aq) + NaOH(aq) → H2O(l) + NaCl(aq)

Neutralization is the basis of titration, where a pH indicator shows equivalence point when the equivalent number of moles of a base have been added to an acid.

--->Acid Base Neutralization Tutorial<---

Past Regents Questions on Neutralization

Aug 2010-

Aug 2009-26 Which substance is always a product when an Arrhenius acid in an aqueous solution reacts with an Arrhenius base in an aqueous solution?
(1) HBr     (3) KBr
(2) H2O    (4) KOH

June 2009-26 Which word equation represents a neutralization reaction?
(1) base + acid => salt + water
(2) base +salt => water + acid
(3) salt + acid =>base + water
(4) salt + water=> acid + base

Jan 2008-45 What are the products of a reaction between KOH(aq) and HCl(aq)?
(1) H2 and KClO    (3) KH and HClO
(2) H2O and KCl    (4) KOH and HCl

Jan 2007-46 Given the balanced equation representing a reaction:
H2SO4(aq) + 2KOH(aq) =>K2SO4(aq) + 2H2O(l)
Which type of reaction is represented by this equation?
(1) decomposition      (3) single replacement
(2) neutralization          (4) synthesis

Aug 2006-


June 2005-48 Sulfuric acid, H2SO4(aq), can be used to neutralize barium hydroxide,     Ba(OH)2(aq). What is the formula for the salt produced by this neutralization?
(1) BaS        (3) BaSO3
(2) BaSO2    (4) BaSO4

Jan 2005-47 Which chemical equation represents the reaction of an Arrhenius acid and an Arrhenius base?
(1) HC2H3O2(aq) + NaOH(aq) --> NaC2H3O2(aq) + H2O(l)
(2) C3H8(g) + 5 O2(g)-->  3 CO2(g) + 4 H2O(l)
(3) Zn(s) + 2 HCl(aq)--> ZnCl2(aq) + H2(g)
(4) BaCl2(aq) + Na2SO4(aq) --> BaSO4(s) + 2 NaCl(aq)

June 2004-30 Which compound could serve as a reactant in a neutralization reaction?

(1) NaCl     (3) CH3OH
(2) KOH     (4) CH3CHO

Aug 2003-30. Which reaction occurs when hydrogen ions react with hydroxide ions to form water?

A. substitution
B. saponification
C.  ionization
D. neutralization

June 2002-25 Given the reaction:

HCl(aq) + LiOH(aq)  HOH(ℓ) + LiCl(aq)

The reaction is best described as

(1) neutralization
(2) synthesis
(3) decomposition
(4) oxidation-reduction

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