CHEMISTRY 1305 FIRST WEEK NOTES THE STUDY OF CHEMISTRY  Chemistrystudiesmatterand itschanges SCIENTIFIC METHOD  Stepone: define aproblem  Steptwo: collect data. It can bequalitative(meansthatthedatawas obtained mainlyby observation oftheproblem)orquantitative(means that thedatawasobtainedby measuringtheproblem)  Stepthree: interpretation. The researcher developsahypothesis CLASIFICATION OF MATTER  Matteroccupiesspaceand it isclassified in: elements, compounds, substancesand mixtures.  Asubstancehasspecificproperties, and it bedivided intoelementsor compound.  Anelement can’tbebroken intoasmallersubstance.  Acompound hastwoormoreelements.Toseparatethoseelements chemicalmeans are needed.  Amixturehastwoor