Chemisrty hints Essay

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Midterm Exam Hints – Prentice Hall
Know How To:
Chapter 1
1. Define Chemistry
2. Identify what a chemist would study
3. Describe an example of applied chemistry
4. Identify the branches of chemistry
5. Define theory
6. Define responding vs. manipulated variable
7. Explain why collaboration and communication are important in science
8. Identify fire safety equipment
9. Describe the proper way to handle solids in the lab
10. Explain how you dispose of excess chemicals
11. Describe what you do if the Bunsen burner flame burns inside the barrel
12. Identify the uses of an MSDS
13. Use a chemical label and the numbered warning system
14. Describe the safety precautions followed when using a burner
Chapter 2
15. Identify matter
16. Define mass
17. Define vapor
18. Identify states of matter & how they are described/defined
19. Identify a physical change
20. Identify a heterogeneous mixture
21. Define distillation
22. Identify the differences between mixtures and compounds
23. Write a chemical symbol for a given element
24. Identify a chemical property
25. Identify a chemical change
26. Identify another chemical change
27. Describe the law of conservation of mass during a chemical change
28. Similar to #27
29. Identify the formula for a compound
30. Identify a compound from a list
Chapter 3
31. Write a decimal number in scientific notation
32. Multiply numbers in scientific notation
33. Define accuracy
34. Define precision
35. Identify a number written with the correct number of Sig figs
36. Count the number of Sig figs in a number
37. Round a value after multiplying and dividing using correct Sig figs
38. Identify the smallest volume – know metric prefixes
39. Identify the SI unit for mass
40. Convert a value in millimeters to meters
41. Identify something with a volume of a cubic meter
42. Calculate the density of an object when given mass & volume
43. What a balance is used to measure
44. Identify the units of density
Chapter 4
45. Identify who first suggested the idea of atoms
46. Define atom
47. What Dalton proposed about atoms (know all parts of his theory)
48. What was wrong in Dalton’s theory of the atom
49. Identify characteristics of subatomic particles

50. Identify characteristics of atoms
51. Identify the particles in the nucleus of atoms
52. Describe Rutherford’s atomic theory
53. Identify the number of protons and electrons in an atom
54. Define mass number
55. Define atomic number
56. Define isotopes
57. Identify the number of protons, neutrons, and electrons given an atomic number and mass number
58. Identify isotopes of the same element from nuclear symbols
59. Calculate the number of neutrons in an atom
60. Describe why chemists use relative masses rather than actual masses of atoms
61. Identify the most abundant isotope of an atom given the atomic mass
62. Calculate the average atomic mass given the mass numbers of the isotopes and their relative abundances
63. Define atomic mass
64. What is necessary to know in order to calculate atomic mass
Chapter 5
65. Describe where protons and electrons are found in Bohr’s model
66. Describe an electron orbit
67. Define the principal quantum number
68. Identify shapes of orbital sublevels
69. Identify the maximum number of orbitals in…