The study of the composition of substances and the changes they undergo.  Organic  Physical  Analytic

Organic Chemistry The study of Carbon Containing Molecules:  carbohydrates  lipids  nucleic acids  proteins

Physical and Analytical Chemistry Highly focused on experimental data Upper level college chemistry

Biochemistry Where chemistry meets biology The chemistry of living systems

Inorganic Chemistry Study of elements and compounds States of matter Reactions This IS high school chemistry!

Pure versus Applied Science Pure science is neither “good” nor “bad”, knowledge for the fun of it Applied science = technology and engineering

Matter Anything that has volume and mass.

Volume: takes up space

Mass: measure of amount of matter, does not change with location

States of matter - Solids Have definite shape Have definite volume

States of matter - Liquids Fixed volume Pours or flows Takes shape of container

States of matter-Gases Takes the shape of container Volume and density change with temperature

Periodic Table

Atom or Molecule? H 2 Mg F 2 S 8 Cu Molecule: two or more atoms chemically bonded Atom: smallest package of matter, single symbol H 2 Mg F 2 S 8 Cu

Element or Compound? O 2 NaCl CO 2 Pt H 2 O He

Metric System Metric System= uniform system based on units of 10 Base units = defined unit on an object or event in physical world Quantity vs. Number 10,000 Base unitQuantity gram (g)Mass Liter (L) Volume Meter (m) Distance

Metric Conversions Kilo k Hecto h Deca da Meter m Gram g Liter L Deci d Centi c Milli m

Metric Equivalents mm daL kg dm cc L Millimeter Decaliter Kilogram decimeter cubic centimeter cm 3 = mL 1000 liter = m 3

Let’s try some examples: 24.0 mg = ______ kg 5.3 hL = ______cL Density = mass/volume