Chemistry: Structures of Life 2004 edition

Textbook Cover

Karen C. Timberlake
Publisher: Pearson Education


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  • 1: Measurements (31)
  • 2: Atoms and Elements (30)
  • 3: Nuclear Radiation (30)
  • 4: Compounds and Their Bonds (26)
  • 5: Energy and States of Matter (27)
  • 6: Chemical Reactions (25)
  • 7: Chemical Quantities (28)
  • 8: Gases (29)
  • 9: Solutions (25)
  • 10: Acids and Bases (29)
  • 11: Introduction to Organic Chemistry (16)
  • 12: Alkanes (21)
  • 13: Unsaturated Hydrocarbons (20)
  • 14: Alcohols, Phenols, Ethers, and Thiols (13)
  • 15: Aldehydes, Ketones, and Chiral Molecules (12)
  • 16: Carbohydrates (24)
  • 17: Carboxylic Acids and Esters (13)
  • 18: Lipids (17)
  • 19: Amines and Amides (14)
  • 20: Amino Acids and Proteins (12)
  • 21: Enzymes and Vitamins (14)
  • 22: Nucleic Acids and Protein Synthesis (15)
  • 23: Metabolic Pathways for Carbohydrates (10)
  • 24: Metabolism and Energy Production (14)
  • 25: Metabolic Pathways for Lipids and Amino Acids (12)

Questions Available within WebAssign

Most questions from this textbook are available in WebAssign. The online questions are identical to the textbook questions except for minor wording changes necessary for Web use. Whenever possible, variables, numbers, or words have been randomized so that each student receives a unique version of the question. This list is updated nightly.

Question Group Key
AP - Additional Problem
QP - Question and Problem


Question Availability Color Key
BLACK questions are available now
GRAY questions are under development


Group Quantity Questions
Chapter 1: Measurements
1.AP 5 084 087 092 096 100
1.QP 26 001 005 006 008 009 012 014 018 020 021 028 032 034 036 046 048 056 062 066 069 070 073 074 076 080 081
Chapter 2: Atoms and Elements
2.AP 5 066 070 078 082 087
2.QP 15 002 004 006 008 010 012 016 030 032 034 040 044 048 060 062
2.TB 10 001 002 003 004 005 006 007 008 009 010
Chapter 3: Nuclear Radiation
3.AP 11 044 046 048 050 052 054 055 056 058 060 066
3.QP 19 004 005 006 008 010 012 014 016 018 020 023 024 030 032 034 036 039 040 042
Chapter 4: Compounds and Their Bonds
4.QP 26 003 004 006 008 010 012 014 016 018 020 022 024 026 028 032 034 042 046 048 050 056 062 076 080 086 094
Chapter 5: Energy and States of Matter
5.AP 6 049 050 052 055 056 057
5.QP 21 001 004 007 008 009 010 012 014 016 018 020 022 024 026 028 030 032 038 040 042 044
Chapter 6: Chemical Reactions
6.AP 5 046 049 050 053 056
6.QP 20 002 006 008 010 012 014 016 018 022 023 026 028 030 032 033 036 038 040 042 043
Chapter 7: Chemical Quantities
7.AP 3 060 062 064
7.QP 25 002 004 006 008 010 012 014 016 018 020 022 024 026 028 030 032 034 042 044 046 048 050 052 054 056
Chapter 8: Gases
8.AP 9 072 075 078 081 086 090 091 095 099
8.QP 20 002 008 012 014 016 020 022 024 027 031 032 038 040 046 050 054 056 058 060 064
Chapter 9: Solutions
9.AP 6 081 086 090 094 097 101
9.QP 19 004 006 010 014 018 022 027 030 034 038 040 044 047 052 056 058 062 066 074
Chapter 10: Acids and Bases
10.QP 29 002 004 006 008 010 012 014 016 018 020 022 024 026 028 032 034 036 038 040 044 048 054 060 062 064 068 072 074 080
Chapter 11: Introduction to Organic Chemistry
11.AP 6 022 024 026 030 031 032
11.QP 10 002 004 006 008 010 012 014 016 018 020
Chapter 12: Alkanes
12.AP 5 050 054 058 064 070
12.QP 16 001 004 006 008 010 012 014 016 020 024 030 032 038 044 046 048
Chapter 13: Unsaturated Hydrocarbons
13.AP 5 048 054 056 060 062
13.QP 15 002 004 010 014 018 020 022 026 030 032 034 038 040 042 044
Chapter 14: Alcohols, Phenols, Ethers, and Thiols
14.AP 5 038 040 053 054 062
14.QP 8 002 004 008 010 015 020 028 032
Chapter 15: Aldehydes, Ketones, and Chiral Molecules
15.AP 6 046 054 058 060 062 064
15.QP 6 002 006 008 014 035 038
Chapter 16: Carbohydrates
16.AP 7 045 047 051 052 054 056 058
16.QP 17 001 003 005 006 008 011 013 017 019 021 026 028 030 033 037 039 042
Chapter 17: Carboxylic Acids and Esters
17.AP 1 044
17.QP 12 002 004 022 026 030 034 038 040 042 044 046 056
Chapter 18: Lipids
18.AP 1 078
18.QP 16 006 008 010 012 014 016 018 020 022 024 030 032 042 046 062 072
Chapter 19: Amines and Amides
19.AP 5 032 040 043 048 050
19.QP 9 004 006 008 010 016 018 024 030 034
Chapter 20: Amino Acids and Proteins
20.QP 12 002 004 006 008 010 012 014 016 018 022 024 032
Chapter 21: Enzymes and Vitamins
21.AP 4 054 056 074 080
21.QP 10 002 006 010 012 018 020 026 034 038 042
Chapter 22: Nucleic Acids and Protein Synthesis
22.AP 2 098 106
22.QP 13 008 010 016 018 022 026 028 040 042 048 052 064 070
Chapter 23: Metabolic Pathways for Carbohydrates
23.QP 10 002 006 012 014 016 018 022 024 028 034
Chapter 24: Metabolism and Energy Production
24.AP 5 052 062 068 076 086
24.QP 9 016 018 024 028 030 036 040 044 048
Chapter 25: Metabolic Pathways for Lipids and Amino Acids
25.AP 2 062 070
25.QP 10 002 008 014 020 026 032 038 044 050 056
Total 507