# Chapter 1.1, Problem 1.1PP

### Chemistry: An Introduction to Gene...

13th Edition
Karen C. Timberlake
ISBN: 9780134421353

Chapter
Section

### Chemistry: An Introduction to Gene...

13th Edition
Karen C. Timberlake
ISBN: 9780134421353
Interpretation Introduction

Interpretation: The following terms should be defined:

1. Chemistry
2. Chemical

Solution:

1. Chemistry: The branch of science in which we study the composition, properties and structure of a substance or chemical or matter.
2. Chemical: A chemically pure substance which has the same composition and properties irrespective of source, or mode of production.
Explanation

Chemistry: In this branch of science we study the nature of matter including properties, structure, composition, synthesis. We also study the way chemicals interact with each other and their surroundings. It is a general perception to link chemistry or study of chemicals to laboratory. However chemistry is present everywhere around us. Being photosynthesis, or respiration, or digestion, or food cooking, or corrosion of metals, etc.

Chemical: The chemical is a substance (pure) which will have the same composition irrespective of the source, it means water will always have two hydrogen atoms and one oxygen atom whether we are taking it from the river, sea, rain etc. The chemical formula will remain the same H2O.

Conclusion

We can define chemistry as that branch of science which deals with the study of chemicals, their properties, their structure, synthesis and interaction with other chemicals. Where, chemicals are pure substance which will have a distinct composition (made of same type of and same number of elements) irrespective of the source.

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