CHEM 1211 Lecture Notes - Lecture 2: Significant Figures, Beryllium, Parsec
Chemistry 1211
Worksheet #2
August 29,2016
Fundamental Definitions
1. Classify the following as a physical or chemical change
Fruit rotting on a countertop
Gasoline on the ground evaporates
Bronze faucet tarnishes and turns green
Properties of matter
2. Give an example of a chemical and physical property for iron
Classification of Matter
3. Classify each of the following as an element, compound, or mixture.
Significant figures
(see page 22-23 for sigfig rules)
4. How many significant figures are in the following?
2.8 x 103 150
2.350 0.031050
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