Deline Chem 210 Exam #1 Review Sheet

  1. Scientific Method: Experiment (data and observations), Law, Hypothesis, Theory
  2. Lab safety
  3. Matter, heterogeneous vs. homogeneous, mixture vs. pure substance, compound vs. element
  4. Physical properties, chemical properties
  5. physical changes, chemical changes
  6. Three visual ways to determine a chemical reaction has occurred: color change, precipitate formed, gas produced
  7. Heat change may indicate a chemical reaction
  8. Metric system: base units, prefixes
  9. deci, centi, milli, kilo
  10. Scientific notation
  11. Significant figures
  12. Dimensional analysis = unit pathway = conversion factors
  13. Density
  14. Percent error
  15. Random errors, systematic errors
  16. Standard deviation, precision
  17. Percent error, accuracy
  18. Volumetric glassware
  19. Qualitative analysis, quantitative analysis
  20. Dalton and Rutherford’s major contributions to the present theory of the make-up of an atom
  21. Dalton’s atomic theory
  22. Rutherford’s gold foil experiment: Protons and neutrons are located in the nucleus which is at the center of the atom. The nucleus has most of the mass of the atom and is positively charged. The electrons are outside the nucleus. The atom is electrically neutral.
  23. Periodic table: metals, nonmetals, metalloids, periods, groups, halogens, noble gases, transition metals
  24. Atomic symbol, protons, neutrons, electrons, mass number, atomic number, isotopes, charge
  25. Main group elements = representative elements (not the “puddle”)
  26. Seven diatomic elements
  27. Chemical formula
  28. Ionic compounds vs. covalent compounds
  29. Molecules, molecular formula, structural formula, structural isomers, alcohol functional group, allotropes
  30. Naming ionic compounds, cations, anions from the formulas
  31. Getting the ionic compound formulas from the names
  32. Naming covalent compounds from the formulas
  33. Getting covalent compound formulas from the names
  34. Five common oxyacids and their anions
  35. Using the periodic table to name even more oxyacids and their anions
  36. Using roman numerals to name the metals with more than one possible charge
  37. Balancing equations
  38. Five categories of balanced equations covered in lecture: combination, decomposition, combustion, single replacement, double replacement
  39. Acids, bases, neutralization
  40. Precipitation
  41. one mole of things is 6.022… x 1023 things
  42. molar mass = grams/ mole
  43. Molar mass of elements and compounds
  44. Percent composition
  45. Empirical formula calculations, molecular formula calculations
  46. The coefficients of the balanced equation have units of MOLES
  47. Unit pathway: grams to moles to moles to grams
  48. Limiting reagent calculations, limiting reagent, excess reagent
  49. Three types of percentage yield calculations

 

Bring to the exam

A)    Only an approved calculator (no graphing calculators)

B)     Pencils and/or pens

C)    Two information sheets ONE SIDE ONLY. Put your name on the back of each sheet. Turn them in with your exam.

D)    Cell phones must be turned off and put away.

 

This exam will have a copy of the periodic table and the “How to name the not so common oxyacids and their anions” chart at the end of the exam. You can rip them off to use them. Make sure you turn them in with the exam.