2.  Octet Rule

3. Isotope # ELECTRONS # PROTONS O-17 O-18 8 8 8 8

4. Isotope # ELECTRONS # PROTONS# NEUTRONS O-17 O-18 8 8 8 8 9 10

5.  Energy level/electron cloud

6.  Active site B B

7.  Neutral

8.  pH of 1

9.  pH  temperature

10.  Coefficients

11. 77

12.  Isotopes

13.  Atomic Number

14. 88

15.  Mass number

16.  Ionic

17.  Base

18.  Nucleus

19.  Ions

20.  Mass Number

21.  pH of 12

22.  Surface Tension  Creeps up thin tubes (capillary action)  Expands when freezes

23.  Nucleus

24. 11

25.  pH

26.  Acid

27.  Activation energy

28.  CH 4 + 2O 2

29.  pH of 2

30.  Lowers the activation energy so the reaction happens faster! Graph B

31.  substrate

32.  Positive

33.  Covalent

34.  Subscripts

35. 22

36.  Enzymes

37.  CO 2 + 2H 2 O

38.  Enzyme B B C CC

39.  Law of Conservation of Matter

40.  Compound

41.  0-6.9

42. 33

43.  Nucleus

44.  yields

45.  Polar

46.  Atom

47.  element

48.  An atom makes up an element  Elements can’t be broken down chemically

49.  Products

50.  Electron cloud; negative

51.  Mass Number

52.  8-14

53.  substrate

54. 22

55. Nuclear Symbol Atomic Number Mass Number Number of Protons Number of Neutrons Number of Electrons 1939 7880 3416 105 13781 19 20 78 158 18 16 5 55 56 K-39 Pt-158 S-34 B-10 Ba-137

56. 16P 17 N 2e- 8e- 6e-

57.  Active site

58.  negative

59. 22  CH 4 + 2O 2 CO 2 + 2H 2 O