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CHEM 1211 PRINCIPLES OF CHEMISTRY I

Chapter 1. Fundamental Concepts. Objectives: * Describe the forms, composition

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CHEM 1211 PRINCIPLES OF CHEMISTRY I

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    1. CHEM 1211 PRINCIPLES OF CHEMISTRY I By Dr. Barry Miburo.

    2. Chapter 1. Fundamental Concepts Objectives: * Describe the forms, composition & properties of matter * Perform calculations on measurement results following the rules of significant figures and dimensional analysis. Case Study: burning wood

    3. Analysis of the contents of the solids *1. Composition Before burning: Carbon, Hydrogen, Oxygen After burning: Carbon Other substances detected: water (gas) *2. Comparison of identities of substances: same or changed?

    4. 1.1. Chemistry: Overview Definition Chemistry = Study of composition, structure, and properties of substances (matter) transformations of substances from one to another.

    5. b. Substance (matter) Any entity that has volume and weight. Examples: * Charcoal. Basic component: one particle, carbon * Water. Basic component: an assembly of 3 particles: one oxygen, two hydrogens. http://images.google.com/images?hl=en&rls=GWYG,GWYG:2006-30,GWYG:en&q=water+molecule&um=1&ie=UTF-8 * You? * Light? See RQ2-1

    6. Running Quiz Question 1 Is light a substance? a. Yes, because light has energy (sunlight can burn you) b. No, because light has no mass (sunlight can burn you) c. Yes, because light has a volume (sunlight can burn you)

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