Slide 1

What is Chemistry? Matter Metrics 1The study of the composition of substances and the changes they undergo.OrganicPhysicalAnalyticBiochemistryInorganicOrganic ChemistryThe study of Carbon Containing Molecules:carbohydrateslipidsnucleic acidsproteins

3Physical and Analytical ChemistryHighly focused on experimental dataUpper level college chemistry

BiochemistryWhere chemistry meets biologyThe chemistry of living systems

Inorganic ChemistryStudy of elements and compoundsStates of matterReactionsThis IS high school chemistry!

Pure versus Applied SciencePure 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

10States of matter - Solids Have definite shapeHave definite volume

States of matter - LiquidsFixed volumePours or flowsTakes shape of container

States of matter-GasesTakes the shape of containerVolume and density change with temperature

Periodic TableThe elements can exist alone or bonded.Elements can be an atom or molecule.Compounds are two or more types of elements bonded together.

Atom or Molecule?H2MgF2S8Cu

Molecule: two or more atoms chemically bondedAtom: smallest package of matter, single symbolH2MgF2S8Cu

Element or Compound?O2NaClCO2PtH2OHeElements are the purest form of matter, only one type of atom.Compounds are two or more types of atoms chemically bonded to form a pure substance.O2NaClCO2PtH2OHeMetric SystemMetric System= uniform system based on units of 10Base units = defined unit on an object or event in physical worldQuantity vs. Number

10,000 Base unitQuantitygram (g)MassLiter(L)VolumeMeter(m)DistanceMetric ConversionsKilo kHecto hDeca daMeter mGram gLiter LDeci dCenti cMilli mMetric Equivalentsmm daLkgdmccLMillimeterDecaliterKilogramdecimetercubic centimeter cm3= mL1000 liter = m3

19Lets try some examples:24.0 mg = ______ kg

5.3 hL = ______cL

Density = mass/volume