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Chem 209 Exam I
Question | Answer |
---|---|
Non-zeroes | are significant |
Leading zeroes | are not significant |
Captive zeroes | are significant |
Trailing zeroes | are only significant if there is a decimal anywhere in the number. |
How many significant numbers are in 0.0025048 ? | 5 |
How many significant numbers are in 100? | 1 |
How many significant numbers are in 100. ? | 3 |
Scientific Method | Observation, Hypothesis, Experiment --> Theory---> Prediction-->Experiment-->Theory modified as needed. |
Theory | explanation of observed behavior |
Law | summary of observed behavior |