1. Chemistry: The Science of Matter

2. Why Chemistry?

3. What is matter?

5. What isn’t matter?

6. How do we describe different kinds of matter? Properties Examples:

7. List some properties of H 2 O 32°F

8. Examining Matter Macroscopic Submicroscopic

9. Scientific Model Based on:

10. Classifying by composition 1. Qualitative 2. Quantitative

11. Qualitative Example: The water is cold. The flavor of the lip-gloss is strawberry.

12. Quantitative Example: The temperature is 100 ° C The beaker weighs 34 grams.

13. Are the following qualitative or quantitative? Pure aluminum is a silvery white metal Sodium has a density of 0.968 g/mL Atomic mass of carbon is 12.011 amu.

14. Classification of Matter Pure substance Mixture

15. Substance Matter with the same fixed composition and properties

16. Mixture

17. Classify each of the following as a mixture or a pure substance: Concrete Helium in a balloon A lead weight Wood

18. Separating mixtures Physical Change: A change in matter that does not involve a change in the identity of the substance Examples:

19. Physical Property

20. Examples of physical properties: Boiling point Melting point Density

21. Types of mixtures: 1. Heterogeneous 2. Homogeneous

22. Heterogeneous Examples:

23. Homogeneous Examples:

24. Let’s try Classify each of these as a homogeneous or heterogeneous mixture: Asphalt road Clear ocean water Iced tea with ice cubes Filtered apple cider

25. Solutions: May be solid, liquid, or gas Alloys are solid solutions + Solute Solvent

26. Pure Substances Classified into two groups: Elements Compounds

27. Element Simplest form of matter

28. Compound

29. Formula: NH 3 H 2 O CH 4 C 12 H 22 O 11 CO 2