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Matter. chemistry. composition. structure. properties. physics. energy. matter. Matter?. Atoms. Atoms. Elements. Same types of atoms. 117*. *more may be created in labs. Compounds. Multiple. elements bonded. together. Molecule. Chemical Formulas.
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chemistry composition structure properties
physics energy matter
Elements Same types of atoms
117* *more may be created in labs
Compounds Multiple elements bonded together.
Chemical Formulas • Used to describe what’s in a molecule. • To read a chemical formula: • The symbols are from the periodic table • Subscript numbers tell you how many atoms. • H2O: made of 2 atoms of hydrogen & 1 atom of oxygen • O3: made of 3 atoms of oxygen
pure substances H2O
pure substances C11H22O11
pure substance + pure substance = Mixture
miscible Mix evenly
immiscible Don’t
Image Credits • Title slide • wallyg • Yvonne in Willowick Ohio • cruadinx • cshoresal • Paco CT • Braid 44 • majamarko • diebmx • Candle Tree • fofurasfelinas • Lukman Kusuma • OskarN • charliebay (one) (two) • ShamsD • MonkeyMike • Carbon 60 by St Stev • Physics in Sepia by chefranden • Atom Image from Wikimedia Commons • Image:AOs-1s-2pz.png (Atomic orbitals) from Wikipedia • Atomic resolution Au100 (gold atoms) from Wikimedia commons • Jmol1 from Wikipedia Commons • Kochendes wasser02 by Markus Schweiss • Sugar cubes by Creet • Sucrose molecule 3D by Michael Stroeck • Perfect Blue by Iain Alexander • Water & food coloring by William Chamberlin • [Lava lamp] by El Fafa