1. Chapter 1 Introduction: Matter and Measurement

2. Section 1.1 The Study of Chemistry

3. Chemistry The study of matter and the changes it undergoes Matter Physical material of the world Has mass Takes up space

4. Matter  116 Elements  Atoms (submicroscopic)

5. Atom + Atom = Molecule

6. Property Any characteristic that allows us to recognize and distinguish Can be physical or chemical

7. Physical Property Chart

8. Chemical Property Chart

9. Always Remember… We study chemistry at the submicroscopic level in order to explain macroscopic events

10. Section 1.2 Classifications of Matter

11. States of Matter 3 Forms Solid Liquid Gas

12. Three States of Matter

13. Pure Substance Element Compound An element cannot be decomposed into simpler substances A compound is a relatively stable combination of two or more chemically bonded elements in a specific ratio. Can be decomposed

14. Mixtures Mixtures consist of two or more substances Homogenous mixtures are uniform throughout. –Air, sea water, and a nickel coin Heterogeneous mixtures vary in texture and appearance throughout the sample. –Rocks, wood, polluted air, and muddy water

15. Pure Substances Fixed elemental composition Mixtures Varying composition