1. Chapter 1 | Slide 1 CHEM 110 Introduction to Chemical Principles I Please turn off or silence pagers and cell phones.

2. Chapter 1 | Slide 2 CHE 110 Introduction to Chemical Principles I Instructor:Dr. Larry Tirri Office:CHE 218 Lectures:002MTWR 12:15 PM – 1:45 PM TBE B172 Phone:895-4281 Email:larry.tirri@unlv.edularry.tirri@unlv.edu or use WebCampus email Office Hours:MTWR 11:00 AM – 12:00 PM, MTWR 2:00 PM – 2:30 PM,

3. Chapter 1 | Slide 3 Introductions Instructor:Dr. Tirri Students:Nursing Majors Pursuing BSN Diploma RN – Working Professionals LPN, etc. – Working Professionals Kinesiology, Food & Beverage Mgt. Non-Science Major Science Lab Elect. Others need CHE 121, CHE 122

4. Chapter 1 | Slide 4 Retention vs. Involvement What is best way to approach learning?  Reading  Observing  Studying  Discussing  Doing Chemistry is a science, mastered by DOING !!!

5. Chapter One Basic Concepts of Matter

6. Chapter 1 | Slide 6 © Gary Braasch/CORBIS Basic Concepts of Matter Volcano Burning and Erupting Several Physical and Chemical Changes occur during this Process.

7. Chapter 1 | Slide 7 What is Chemistry ? Chemistry is … What is matter?

8. Chapter 1 | Slide 8 What is Chemistry ? Scope: Broad, all encompassing Advertisements frequently use terms such as Chemical Free and All Natural. Is this true?

9. Chapter 1 | Slide 9 Basic Concepts of Matter cont’d Classification Systems:  Physical States Solid Liquid Gas  Properties: Physical Chemical Hazardous / Toxic

10. Chapter 1 | Slide 10 Fig. 1.1 Solid, liquid, and gas states Basic Concepts of Matter cont’d David Schultz/Getty Images Fig. 1.2 Water can be found in the solid, liquid, and vapor (gaseous) forms simultaneously.

11. Chapter 1 | Slide 11 Basic Concepts of Matter cont’d Solid: Liquid: Gas: State of matter is dependent on temperature, pressure, strength of forces between particles

12. Chapter 1 | Slide 12 Basic Concepts of Matter cont’d Classification Systems:  Physical States Solid Liquid Gas  Properties: Physical Chemical Hazardous / Toxic

13. Chapter 1 | Slide 13 Basic Concepts of Matter cont’d Physical Properties:  Physical State: dependent upon temperature and pressure.  Add heat to a solid.  Add heat to a liquid.  Solid ↔ LiquidMelting Point  Liquid ↔ Gas (vapor)Boiling Point

14. Chapter 1 | Slide 14 Basic Concepts of Matter cont’d The melting of ice cream is a physical change involving a change of state; solid turns to liquid. Phil Degginger/Color-Pic

15. Chapter 1 | Slide 15 Basic Concepts of Matter cont’d MP o CBP o C O 2 -218-183 N 2 -210-196 H 2 O 0 100 I 2 114 184 Fe15352885 Differences may distinguish one from another.

16. Chapter 1 | Slide 16 Basic Concepts of Matter cont’d Other Physical Properties:  Color  Odor  Hardness  Density  Solubility All Physical Properties are observed without changing the basic identity of the substance.

17. Chapter 1 | Slide 17 Basic Concepts of Matter cont’d Chemical Properties: Characteristic that describes the way a substance  Cu (copper) objects turns ________ when exposed to ____, ______ and ______  Au (gold) objects ___________  Fe forms ________(rust) when exposed to ______ and ____________  Ag (silver) ____________, ________

18. Chapter 1 | Slide 18 Fig. 1.3 The green color of the Statue of Liberty results from the reaction of copper with the components of air. Andy Levin/Photo Researchers Basic Concepts of Matter cont’d

19. Chapter 1 | Slide 19 Fig. 1.5 As a result of chemical change, bright steel girders become rusty when exposed to moist air. Basic Concepts of Matter cont’d

20. Chapter 1 | Slide 20 Basic Concepts of Matter cont’d C.C. 1.1 "Good" versus "Bad" Properties for a Chemical Substance

21. Chapter 1 | Slide 21 Basic Concepts of Matter cont’d “Good vs Bad”  CO  Coumadin  Acetaminophen

22. Chapter 1 | Slide 22 Basic Concepts of Matter cont’d Concept of Properties → Observed Changes  Physical Changes – Change in physical appearance Solid → Liquid → Gas Solid → Gas Sublimation CO 2 I 2  Chemical Changes – Change in Chemical composition and changes in chemical properties. 4 Fe + 3 O 2 → 2 Fe 2 O 3 C + O 2 → CO 2

23. Chapter 1 | Slide 23 Basic Concepts of Matter cont’d Concept of Properties → Observed Changes  Physical Changes – ____________________________ _________ → _________ → ____________ _________ → _____ ________ _____ ____  Chemical Changes – _________________________ and changes in ____________ properties.

24. Chapter 1 | Slide 24 Basic Concepts of Matter cont’d CAG.1

25. Chapter 1 | Slide 25 Basic Concepts of Matter cont’d Pure Substances vs Mixtures  A Pure Substance is _________________ that cannot be _________ into other kinds of matter by any _____________ means.  A Mixture is a _________ ____________ of _____ or _______ pure substances in which each substance ___________ its own ___________ __________. Each substance ____________and ___________ ________________ composition

26. Chapter 1 | Slide 26 A magnet and a mixture consisting of potassium dichromate (orange crystals) and iron fillings. (b) The magnet can be used to separate the iron fillings from the potassium dichromate. James Scherer Basic Concepts of Matter cont’d Fig. 1.6a

27. Chapter 1 | Slide 27 Fig 1.7 Matter falls into two basic classes; pure substances and mixtures. Mixtures, in turn, may be homogeneous or heterogeneous. Basic Concepts of Matter cont’d

28. Chapter 1 | Slide 28 Fig 1.8 A pure substance can be either an element or a compound. Basic Concepts of Matter cont’d

29. Chapter 1 | Slide 29 Fig. 1.9 Questions used in classifying matter into various categories. Basic Concepts of Matter cont’d

30. Chapter 1 | Slide 30 Basic Concepts of Matter cont’d  CAG 1.2

31. Chapter 1 | Slide 31 Basic Concepts of Matter cont’d Fig. 1.10 Outward physical appearance of naturally occurring elements ________ _______ _______ ______ ______ ____

32. Chapter 1 | Slide 32 Basic Concepts of Matter cont’d Fig. 1.11 Abundance of elements in the universe and in Earth’s crust (in atom percent)

33. Chapter 1 | Slide 33 Basic Concepts of Matter cont’d C.C. 1.2 Elemental Composition of the Human Body 60.5% 25.7% 10.7% 2.4% 0.7% Other

34. Chapter 1 | Slide 34 Basic Concepts of Matter cont’d Table 1.1 Elements in Red plus As, Bi, Cr Ag _________________ Au _________________ Cu _________________ Fe _________________ Hg _________________ K _________________ Na _________________ Pb _________________ Sn _________________

35. Chapter 1 | Slide 35 Fig. 1.12 A computer reconstruction of the surface of a sample of graphite (carbon) as observed with a scanning tunneling microscope. The image reveals the regular pattern of individual carbon atoms. The color was added to the image by computer. Basic Concepts of Matter cont’d Image courtesy of Veeco Instruments Inc.

36. Chapter 1 | Slide 36 Basic Concepts of Matter cont’d Fig. 1.13 254 million atoms arranged in a straight line would extend a distance of approximately 1 inch.

37. Chapter 1 | Slide 37 Basic Concepts of Matter cont’d Fig 1.14 Molecular structure of (a) chlorine, (b) phosphorus, and (c) sulfur

38. Chapter 1 | Slide 38 Fig. 1.15 Depictions of various simple heteroatomic molecules using models. Spheres of different sizes and colors represent different kinds of atoms. Basic Concepts of Matter cont’d

39. Chapter 1 | Slide 39 Example 1.2 Classify each of the following molecules as (1) diatomic, triatomic, etc. (2) homoatomic or heterotomic and (3) representing an element or a compound. Basic Concepts of Matter cont’d

40. Chapter 1 | Slide 40 Basic Concepts of Matter cont’d Practice Example 1.2 Classify each of the following molecules as (1) diatomic, triatomic, etc. (2) homoatomic or heterotomic and (3) representing an element of a compound.

41. Chapter 1 | Slide 41 Basic Concepts of Matter cont’d Chemical Formulas  Combination of ________ _________ to represent a ____________ or _____________  ______________ used to identify more than _____ ________ of an __________  Parentheses used to represent a ________ of _______ that represent a ________, such as