Ch. 1: Measurements
GOALS
Learn and use the base units and prefixes in the metric system for unit conversions Use scientific notation Differentiate between measured number and exact numbers Determine the SF in a measurement and appropriate rounding rules
n1
n2
4 / 4 points
Because beta particles are much smaller and move faster than alpha particules, they can penetrate farther
into tissue.
True
False
3 / 3 points
See the chemical structure sheet for practice exam 2 for question 2.
The given balanced equat
n1
3.34 / 3.34 points
The measurement 0.000 0043 m, expressed correctly using scientific
notation, is
4.3 x 107 m
4.3 x 106 m
4.3 x 106 m
0.43 x 105 m
4.3 m
n2
0 / 3.34 points
What is the metric relationship between grams and micrograms ?
1 g = 100 g
1
SUGGESTED PROBLEMS and Learning Tips CHEM 1151 (this is IN ADDITION TO Required Homework using MasteringChemistry online homework/tutorial)
Ch. 1: Measurements Concept Checks: 1,2,3,4,7,8 Sample Problems: 1,2,3,4,5,6,7,8,9,10,11,15,16 Questions and Proble
Welcome to CHEM 1151
Survey of General Chemistry
Ms. Schoene, M.S. (rhymes with rainy) Office: SC1138
3/24/11
What you need:
Orange textbook (Custom Publishing by Pearson) Notebook for notes and PROBLEMS
4 x 6 Index cards
3/24/11
for INCLASS
What you ne
Ch. 3: Atoms and Elements
Suggested problems are on iCollege and on the next slide 3/24/11
Suggested Problems for Ch. 3: Atoms and Elements
Concept Checks: all except 3.6 Sample Problems: all except 3.7 Questions and Problems: all odd up to 3.43 (omit 3.4
Ch. 2: Matter and Energy
Notes:

the textbook starts with Energy, we are
starting with Matter  some of the calculation in this chapter are not as important as the concepts (see lecture and Suggested Problems for clarification) 3 Please always check Mast
n1
3.34 / 3.34 points
The correct formula for the compound formed from Mg and S is
Mg2S3.
Mg2S2.
MgS2.
Mg2S.
MgS.
n2
n3
3.34 / 3.34 points
How many lone pairs of electrons are in the electrondot structure of H 2O?
3
0
1
4
2
3.33 / 3.33 points
A polar cov