Chemistry 102 Notes

Chemistry 102 Notes - Chemistry102 17:30

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Chemistry 102 17:30 Chemistry is the science that studies the properties and interactions of matter The goal of science is to develop explanations as to why things are the way  they are. o Models are used to make explanations more easily understood. Matter- Substances and Chemicals Pure substances o Elements – fundamental substances cannot be broken down using  chemical methods o Compounds – made of 2 or more elements chemically bound together in  such a way that each element cannot be identified Ex. Carbon is an element. Pencil. Coal (rock). Soot.    Hydrogen is an element. Gas will burn. Enough in a room will kill you.    Oxygen is an element. Gas. No color, no taste. No oxygen you will die. Mixtures – most substances are mixtures. o
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Chemistry 102 Notes - Chemistry102 17:30

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