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Chapter 1 Outline

Chapter 1 Outline . Chemistry Matter and Change Introduction to Chemistry. I. Branches of Chemistry. Chemistry -the study of matter and the changes it undergoes (particularly interested in energy changes)

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Chapter 1 Outline

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  1. Chapter 1 Outline Chemistry Matter and Change Introduction to Chemistry

  2. I. Branches of Chemistry • Chemistry -the study of matter and the changes it undergoes (particularly interested in energy changes) • Organic Chemistry - the study of carbon containing compounds (once thought to be just the study of compounds having a living source) - now contains synthetic compounds like plastics

  3. Inorganic Chemistry- may contain some short carbon chained molecules but basically does not contain carbon • Physical chemistry- covers the topics of thermodynamics and kinetics as well as other topics

  4. Analytical Chemistry - deals with the components and composition of substances Biochemistry - matter and processes of living organisms (proteins, fats, lipids, enzymes…) D = mass/volume II. Properties of Matter Mass - has the property of inertia a) Inertia - the resistance to change of motion b) Weight - is the measurement of force of gravity between two objects Density - another property of matter how much matter is in a specific volume

  5. Energy - property of all matter that under the right conditions can do work a) potential - energy of position b) kinetic - energy of motion question - evaluate the picture to the right in terms of kinetic and potential energies

  6. III. Scientific Method • Science - is the search for knowledge a) pure science - gain knowledge for the sake of knowledge itself b) applied science - knowledge to solve a specific problem

  7. A systematic approach • Observe - environment around you and ask a question • Collect data - may take notes then form a • Hypothesis - an initial educated guess why phenomena occurs • Experiment - to prove of disprove hypothesis

  8. Analyze - evaluate the data collected • Theorize - after many experiments conclude that a cause an effect are likely - may be modified by new data • Scientific law - after years of experiments no know exceptions to the theory occur

  9. IV. Designing a Good Experiment • An experiment is a carefully controlled procedure that tests a hypothesis/ A good experiment has a) an independent variable - one thing that is changed ..and is studied for its effect on b) the dependent variable - the factor that results of the independent variable -- is measured in the experiment

  10. c) a control - a standard of comparison for all the experimental entries d) constants - factors that are kept the same through the experiment ( everything that is possible to keep constant except for the independent variable should be kept the same)

  11. Constructive Response • Three friends argue over which brand of microwave popcorn is best. Billy says that Big Pop is the tastier, Joe claims that Jiffy Pop is the best, while Sue insists that Red Devil is great! • Design an experiment that will settle the dispute. Be sure to include a description of the experiment using the terms control, constant, independent and dependent variable.

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