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Chemistry 100. Understand the scientific method Define and give examples of 3 states of matter Distinguish between substances, mixtures, Understand and be able to apply the different separation techniques. Instructor: Mark Davis. What is Chemistry?. The study of all substances
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Chemistry 100 • Understand the scientific method • Define and give examples of 3 states of matter • Distinguish between substances, mixtures, • Understand and be able to apply the different separation techniques Instructor: Mark Davis
What is Chemistry? • The study of all substances • The CENTRAL SCIENCE
Why Study Chemistry? • Useful for other sciences • Required course • Fun and Challenging • Remember: • Process of Discovery • Understand Concepts, NOT Single Facts
Scientific Method Observation Question Experiment Conclusion
Scientific Method Conclusion • Theory • Explains why nature behaves in a certain way • Natural Law • Explains how nature behaves Prediction Experiment
What is Matter? • Anything that has • Composed • Exists in three states on earth • Exists in fourth state in space
Solids • Definite • Particles • Crystalline – • Amorphous solids –
Liquids • Definite • Not a • (Takes shape of container) • Particles have • Particles can
Gases • Indefinite • No definite • Particles have • Particles move
States of matter animation • http://www.harcourtschool.com/activity/states_of_matter/
Substances and Mixtures • Pure Substance: • Mixture: • Not
Pure Substances • Elements • Compound
Matter Pure substances (homogeneous composition) Mixtures of two or more substances Elements Compounds Solutions (homogeneous composition – one phase) Heterogeneous mixtures (two or more phases) Figure 3.2 (page 48)
Types of Mixtures • Heterogeneous mixtures • Visibly • Two or more • Homogeneous mixtures • Different
Separating Mixtures • Do NOT cause
Separating Mixtures • Homogeneous