This worksheet asks students to list and identify properties of acids and bases, recognize examples of acids, bases and salts, define Arrhenius and Bronsted-Lowry acids and bases, identify conjugate acid-base pairs in chemical equations, and determine whether an acid or base would be used to remove scale build-up in the bathroom. Students are asked multiple choice and short answer questions testing their understanding of acids and bases.

1. Name ____________________________________________________ Group _________
Date ______________________________________________________ List # ________
Worksheet #1
Properties of Acids and Bases
1.- List five general properties of acidic solutions.
2.- List five general properties of basic solutions.
3.- To what ion did Arrhenius attribute the properties of acidic solutions? _____________
Of basic solutions? _____________
4.- Indicate whether each of the following is an acid(A), a base(B), a salt(S) or other(O)
a)HNO3 b)KOH c)KNO3 d)HCN e)HC2H3O2
f)NaCN g)H2SO4 h)Al(OH)3 i)H3PO4 j)CH3OH
5.- A Bronsted-Lowry acid is ______________________________________________
A Bronsted-Lowry base is _________________________________________________
6.- Indicate whether each of the following statements indicates an acid (A)or a base(B):
a)causes vinegar to have a sour taste b)neutralizes bases
c)produces H+ in solution d)has a soapy feel
e)turns litmus red f)is an electrolyte
7.- Write the conjugate base of the following:
a)HNO2 b)HC2H3O2 c)H2CO3
8.- Write the conjugate acid of the following:
a)HSO4- b)NH3 c)OH-
9.- Identify the conjugate acid-base pairs in the following equations
a) HClO4 + H2O  H3O + + ClO4 – c)C6H5SH + H2O <-> C6H5S - + H3O+
b) HC2H3O2 + H2O <-> H3O + + C2H3O2- d)NH3 + H2O <-> NH4 + + OH-
10.- What would you use to remove the scale build-up in your bathroom, an acid or a base?
Explain.