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I. Why Chem ?
Practical Reason: It's relevant and ubiquitous
Fundamental: It provides the framework for solving issues.
III. Scientific Approach Scenario: phone isn't charging
https://image.shutterstock.com/image-illustration/scientific-method-ongoing-process-600w-572234674.jpg
1. Hypothesis- An Idea on how the observation reacts/works
a. have to prove or disagree on how it works
sc1: the outlet is broken
↓
2. Experiment- the way to test your claim
sc1: we check out the outlet
↓
3. Theory- a proposition's on how the phenom works
a. Scientific Law- a brief statement on how something works.
The difference between Law and Theory
a. Theory are validated by experiments, however more experiments can show its flaw. "course correcting"
II. Definitions
A. Matter is a item that has volume and mass that takes up space.
B. Physical Property- a characteristic of a substance that can be determined without altering the chemical composition
1. color, density, boiling point
C. Chemical Property- a characteristic of a substance that is revealed only as the composition changes.
1. Acidity, flammability and corrosiveness.
IV. Atoms vs. Molecules
1. Orientation
Graphite and Diamonds are made up of the same atom, however its rearranged in different ways.
Graphite is in sheets forms whereas Diamond are bound together.
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