1. Chapter 1, Part 1

2. Define the Question/Problem Propose Hypothesis: educated guess Carry out experiments & collect data Develop Theory: conclusion(s) based on factual data Increase the rate of a particular reaction Utilize a catalyst Experiment with various catalysts and conditions (i.e., temp pres vol) If any combination was successful in addressing the question then develop a theory based on that catalyst and condition.

7. Element: atoms Element: a substance (for example, carbon, hydrogen, and iron) that consists of identical atoms. There are 116 known elements. Of these, 88 occur in nature; the others have been made by chemists and physicists.

8. Monatomic elements:Monatomic elements: consist of single atoms; for example, helium (He) and neon (Ne). Diatomic elements:Diatomic elements: there are seven elements that occur as diatomic molecules: –H 2, N 2, O 2, F 2, Cl 2, Br 2, and I 2 Polyatomic elements:Polyatomic elements: some elements have three or more atoms per molecule: –O 3, P 4, S 8 –diamond has millions of carbon atoms bonded together to form one gigantic cluster.

9. Compound:Compound: a pure substance made up of two or more elements in a fixed ratio by mass. Formula of a compound:Formula of a compound: tells us the ratios of its constituent elements and identifies each element by its atomic symbol. –NaCl: the ratio of sodium atoms to chlorine atoms in sodium chloride is 1:1 –H 2 O: the ratio of hydrogen atoms to oxygen atoms in water is 2:1

10. Mixture:Mixture: a combination of two or more pure substances –Pure substances present in any mass ratio. –Each substance has a different set of physical properties. –Mixtures may be homogeneous or heterogeneous. –If we know the physical properties of the individual components of the mixture, we can use appropriate physical means to separate the mixture into its component parts.

11. Homo- or Heterogeneous mixture? Pure substance or compound?

13. <<< Physical Change Chemical Change >>>

14. Memorize the names and symbols for the following: H, He, Li, Na, K, Mg, Ca Mn, Fe, Ni, Cu, Zn, Au, Ag, Hg, W Al, Sn, Pb C, N, O, F, P, S, Cl, Br, I He, Ne, Ar

15. Chapter 1, Part 2

18. Use a table to derive metric conversions

19. Use two points and y = mx + b to derive the conversion equation between o C and o F