Test Bank For General Chemistry The Essential Concept 7th Edition Raymond By Chang

Chapter 01: Introduction

1. A tentative explanation for a set of observations that can be tested by further experimentation is referred to as
2. A) a hypothesis.    B)  a law.    C)  a theory.    D)  none of the above.

Ans:  A     Category:  Easy     Section:  1.2

2. A concise verbal or mathematical statement of a relationship between phenomena that is always the same under the same conditions is referred to as
3. A) a hypothesis.    B)  a law.    C)  a theory.    D)  none of the above.

Ans:  B     Category:  Easy     Section:  1.2

3. A unifying principle that explains a body of facts and relations is referred to as
4. A) a hypothesis.    B)  a law.    C)  a theory.    D)  none of the above.

   Ans:  C     Category:  Easy     Section:  1.2

4. Complete the following sentence.  A hypothesis is
5. A) a tentative explanation for a set of observations that can be tested by further experimentation.
6. B) a statement describing a relationship between phenomena that is always the same under the same conditions.
7. C) a unifying principle that explains a body of facts and relations.
8. D) a model used to visualize the invisible.

      Ans:  A     Category:  Easy     Section:  1.2

5. Complete the following sentence.  A scientific law is
6. A) a tentative explanation for a set of observations that can be tested by further experimentation.
7. B) a statement describing a relationship between phenomena that is always the same under the same conditions.
8. C) a unifying principle that explains a body of facts and relations.
9. D) a model used to visualize the invisible.

Ans:  B     Category:  Easy     Section:  1.2