CHM-1045 Lecture Notes - Lecture 1: Intensive And Extensive Properties, Sweet Tea
17 Jan 2017
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The data must be observable, empirical, and measurable. When you collect this data, you form a hypothesis an educated guess that explains the observable data. Once a hypothesis is tested enough, it can become a theory a model based on known facts (experimental results) that explains the observable data. The scienti c theory does two things: (1) it identi es a set of distinct observations as a class of phenomena (2) it makes assertions about the underlying reality. An example of this would be the theory gravity . Well if ____ is true, than ____ must be true too. Chemistry is the study of matter which is the physical substance of the universe. Have a xed composition; the constituent elements that make up this substance are xed. Two general classes of pure substances (1) elements cannot be reduced simpler substances.
