Acids, Bases, and Salts Worksheet [PDF]

Acids turn ______ different colors. BASES: ♢ Bases tend to taste ______ and feel ______. ♢ Like acids, aqueous basic

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Worksheet: Acids, Bases, and Salts

Name______________

What are Acids, Bases, and Salts?

The Swedish chemist Svante Arrhenius introduced the theory of ionization and used this theory to explain much about the behavior of acids and bases. ♦ An Arrhenius acid is defined as any compound that dissociates in aqueous solution to form ____________ ions. HNO3(aq)  H+ (aq) + NO3- (aq) HCl (aq)  ________________________ ♦ An Arrhenius base is defined as any compound that dissociates in aqueous solution to form ____________ ions. KOH (aq)  K+ (aq) + OH- (aq) NaOH (aq)  ________________________ ♦ Salts are compounds that dissociate in aqueous solution releasing neither ____________ ions nor ____________ ions. KCl (aq)  K+ (aq) + Cl- (aq) NaCl (aq)  ________________________

Using the Arrhenius definition, classifiy the following examples as acids, bases, or salts: HBr

________________

KCl

________________

Mg(OH)2

________________

H3PO4

________________

HCl

________________

HClO

________________

KNO2

________________

Al(OH)3

________________

HFO4

________________

KC2H3O2

________________

Ba(OH)2

________________

NaCl ________________

CHEMISTRY: A Study of Matter © 2004, GPB

11.4

Acids and bases can also be identified using an operational definition. Operational definitions are simply a list of properties. ACIDS: ♦ A ____________ taste is a characteristic property of all acids in aqueous solution. ♦ Acids react with some metals to produce ____________ gas. ♦ Because aqueous acid solutions conduct electricity, they are identified as ____________. ♦ Acids react with bases to produce a ____________ and water. ♦ Acids turn ____________ different colors. BASES: ♦ Bases tend to taste ____________ and feel ____________. ♦ Like acids, aqueous basic solutions conduct ____________, and are identified as ____________. ♦ Bases react with ____________ to produce a salt and ____________. ♦ Bases turn ____________ different colors. Naming Acids, Bases, and Salts Since bases and salts are ____________ compounds, they are named in the usual way: KNO3____________ NH4OH____________ KNO2____________

Al(OH)3____________

 Binary acids consist of ____________ elements, the first being ____________. Binary acids are named using the format: hydro_(root word of second element)__ic acid  Ternary acids consist of ____________ elements. Do NOT use a prefix. Simply change the ending of the polyatomic ion’s name and add the word “acid”:

–ate becomes _______ and –ite becomes _______ Name the following acids: H3PO3

________________

HC2H3O2

________________

H2CO3

________________

HClO2

________________

HF

________________

H2SO3

________________

CHEMISTRY: A Study of Matter © 2004, GPB

11.5

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