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Unformatted text preview: the substance burns Lavoiser showed oxygen, a component of air is required for combustion and combines with a substance when it burns. 1.3 The Scientific Approach: Developing a model 1. Observations natural phenomena and measured events, universally consistent one can be stated as a natural law 2. Hypothesis tentative proposal that explains observations 3. Experiment procedure to test hypothesis, measures one variable at a time 4. Model (theory) set of conceptual assumptions that explains data from accumulated experiments, predicts related phenomena 5. Further experimenting tests predictions based on model 1.4 Chemical Problem Solving Density = mass/volume Significant Figures Multiplication/Division takes on the sig figures of the one with fewest Addition/Subtraction same number of decimal places as the fewest decimal places...
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This note was uploaded on 11/03/2010 for the course CHEM V25 taught by Professor Miller during the Fall '08 term at NYU.
- Fall '08