Chemistry 120 Chapter 1 Introduction to Chemistry Introduction
- Slides: 15
Chemistry 120 Chapter 1: Introduction to Chemistry; Introduction to Active Learning Outline I. Introduction to Chemistry II. Scientific Method
Where are chemicals found?
What is Chemistry?
What is the chemistry of today? The Five Traditional Subdivisions of Chemistry • • • Inorganic - chemistry of compounds of all elements but carbon Organic - chemistry of carbon compounds Biochemistry - chemistry of living systems Physical - physics of chemical change Analytical - what and how much are in a sample
How does chemistry relate to other sciences?
Figure 22 -1 p 702
How are substances in Chemistry represented? How to Think Like a Chemist:
Robert Boyle, the “Grandfather of modern chemistry” Antoine Lavoisier, the “Father of modern chemistry” and Marie Lavoisier p 2
What is the Scientific Method? • Empirical facts – (observations, data) • Scientific laws – (tested generalizations, consistent observations) • Hypothesis – (tentative explanation) • Experiments • Publish results • Theory or Models – (tested explanation, unifying explanation for a set of observations, facts and laws)
Scientific Method • The bicycle tire is flat. Represents a. an observation. b. an hypothesis. c. an experiment. d. a theory.
Scientific Method • If I add air to the bicycle tire, it will expand to the proper size. Represents a. an observation. b. an hypothesis. c. an experiment. d. a theory.
Scientific Method • When I added air to the bicycle tire, it was still flat. Represents a. an observation. b. an hypothesis. c. an experiment. d. a theory.
Scientific Method • The bicycle tire must have a leak in it. Represents a. an observation. b. an hypothesis. c. an experiment. d. a theory.
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