What is Chemistry? What is Matter? How is Matter Classified?

Chemistry is the study of matter, or nature of all of the "stuff" around us. Therefore, to begin Chemistry, we must understand precisely how all of the matter around us is classified.
This is one of the most important topics in all of Chemistry. Without a solid understanding of how matter is classified, everything else you learn in Chemistry with be learned on a shaky foundation.
0:00 - What is Chemistry?
0:50 - Atoms
1:16 - Molecules
1:42 - Arrays; Unit Cells
2:33 - Elements
3:35 - Compounds
4:13 - Substances
4:42 - Mixtures
5:29 - Homogeneous Mixtures
6:31 - Heterogeneous Mixtures
7:28 - Solutions
9:19 - States of Matter
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