CHEM 1031 Lecture Notes - Lecture 1: Bose–Einstein Condensate, Chicken Soup, Sweet Tea

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Alchemy- alchemists- kimia (persian) al-ki(cid:373)ia (cid:894)a(cid:396)a(cid:271)i(cid:272)(cid:895) : (cid:862)(cid:272)ast togethe(cid:396)(cid:863) Chemi and kimi = egypt and egyptian where they first extracted metals. A science that studies the properties of matter, the changes the matter undergoes, and the energies associated with these changes. Anything that has a mass and takes up room. Solid, liquid, gas: three stages of matter (mostly gasses in this course) 2 other states: plasma, bose einstein condensate. The properties of matter are determined by the properties of the atoms and molecules composed of atoms and molecules and ions in that matter. Very toxic, causes reactions, brown gas at room temperature, when cooled it becomes colorless. Changing the molecules give it very different properties. Pure substances: elements and compounds (atoms or molecules) Mixtures: heterogeneous and homogeneous (wet sand or sweet tea) Ele(cid:373)e(cid:374)ts: (cid:272)a(cid:374)"t (cid:271)e (cid:271)(cid:396)oke(cid:374) do(cid:449)(cid:374) i(cid:374)to othe(cid:396) ele(cid:373)e(cid:374)ts. 118 different ones, all with their own symbol and different properties. 118 elements can create over 132 million compounds.