Question

key terms

• chemistry
• organic chemistry
• inorganic chemistry
• analytical chemistry
• physical chemistry
• biochemistry

use this completion exercise to check your understanding of the concepts and terms that are introduced in this section. each blank can be completed with a short term, short phrase, or number.

chemistry is the study of the _1_ of matter and the _2_ that matter undergoes. chemistry has traditionally been divided into _3_ areas of study. organic chemistry is the study of substance that contain _4_, while inorganic chemistry is primarily the study of substances that do not contain _5_.

_6_ is concerned with the composition of substances, while _7_ is concerned with their behavior. biochemistry is the study of the chemistry of _8_. applied chemistry is used to attain a specific _9_, while pure chemistry accumulates _10_ for its own sake.

1. __________
2. __________
3. __________
4. __________
5. __________
6. __________
7. __________
8. __________
9. __________
10. __________

classify each of these statements as always true, at; sometimes true, st; or never true, nt.

______ 11. organic chemistry is the study of substances that do not contain carbon.
______ 12. the goal is to accumulate knowledge.
______ 13. biochemistry is the study of chemistry of living organisms.
______ 14. organic chemistry overlaps with physical chemistry.
______ 15. applied chemistry is used to attain specific goals.

Explanation:

Completion Exercise Answers:

1. Composition (Chemistry studies the composition of matter).
2. Changes (and the changes matter undergoes).
3. Five (traditionally divided into five areas: Organic, Inorganic, Analytical, Physical, Biochemistry).
4. Carbon (Organic chemistry studies substances with carbon).
5. Carbon (Inorganic chemistry studies substances without carbon).
6. Analytical Chemistry (concerned with composition of substances).
7. Physical Chemistry (concerned with behavior of substances).
8. Living Organisms (Biochemistry studies chemistry of living things).
9. Goals (Applied chemistry is for specific goals).
10. Knowledge (Pure chemistry accumulates knowledge for its own sake).

Classification Answers:

1. NT (Organic chemistry studies substances with carbon, so this is never true).
2. ST (Accumulating knowledge is the goal of pure chemistry, not always all chemistry, so sometimes true).
3. AT (Biochemistry is defined as the study of chemistry in living organisms, always true).
4. ST (Overlap depends on context, so sometimes true).
5. AT (Applied chemistry is defined as being used for specific goals, always true).

Final Answers (Completion + Classification):

1. Composition
2. Changes
3. Five
4. Carbon
5. Carbon
6. Analytical Chemistry
7. Physical Chemistry
8. Living Organisms
9. Goals
10. Knowledge
11. NT
12. ST
13. AT
14. ST
15. AT

Answer:

Completion Exercise Answers:

1. Composition (Chemistry studies the composition of matter).
2. Changes (and the changes matter undergoes).
3. Five (traditionally divided into five areas: Organic, Inorganic, Analytical, Physical, Biochemistry).
4. Carbon (Organic chemistry studies substances with carbon).
5. Carbon (Inorganic chemistry studies substances without carbon).
6. Analytical Chemistry (concerned with composition of substances).
7. Physical Chemistry (concerned with behavior of substances).
8. Living Organisms (Biochemistry studies chemistry of living things).
9. Goals (Applied chemistry is for specific goals).
10. Knowledge (Pure chemistry accumulates knowledge for its own sake).

Classification Answers:

1. NT (Organic chemistry studies substances with carbon, so this is never true).
2. ST (Accumulating knowledge is the goal of pure chemistry, not always all chemistry, so sometimes true).
3. AT (Biochemistry is defined as the study of chemistry in living organisms, always true).
4. ST (Overlap depends on context, so sometimes true).
5. AT (Applied chemistry is defined as being used for specific goals, always true).

Final Answers (Completion + Classification):

1. Composition
2. Changes
3. Five
4. Carbon
5. Carbon
6. Analytical Chemistry
7. Physical Chemistry
8. Living Organisms
9. Goals
10. Knowledge
11. NT
12. ST
13. AT
14. ST
15. AT