Unit 2939: Comprehensive Chemistry Fundamentals

1. Introduction to Chemistry

• Definition and scope of chemistry
• Matter: definition and classification
  • Elements
  • Compounds
  • Mixtures
• The scientific method in chemistry
  • Observation
  • Hypothesis
  • Experimentation
  • Theory and law

2. Atomic Structure

• Composition of atoms
  • Protons, neutrons, electrons
• Atomic number and mass number
• Isotopes and their significance
• Electron configuration
  • Energy levels and orbitals
  • Aufbau principle, Pauli exclusion principle, Hund’s rule

3. Periodic Table and Periodicity

• Organization of the periodic table
  • Groups and periods
  • Metals, nonmetals, and metalloids
• Periodic trends
  • Atomic size
  • Ionization energy
  • Electronegativity
  • Electron affinity
• Chemical reactivity and periodic trends

4. Chemical Bonding

• Types of chemical bonds
  • Ionic bonds
  • Covalent bonds
  • Metallic bonds
• Lewis structures
  • Drawing electron dot diagrams
  • Formal charge calculation
• VSEPR theory
  • Predicting molecular shapes
• Molecular geometry and polarity

5. Chemical Reactions

• Identifying chemical reactions
• Writing and balancing chemical equations
• Types of chemical reactions
  • Synthesis (combination)
  • Decomposition
  • Single replacement
  • Double replacement
  • Combustion
• Stoichiometry
  • Mole concept
  • Calculations involving reactants and products
• Limiting reactants and excess reactants
• Percent yield and reaction efficiency

6. States of Matter

• Classification of states: solids, liquids, gases, plasma
• Properties of states of matter
• Phase changes
  • Melting, freezing, vaporization, condensation, sublimation
• Intermolecular forces
  • London dispersion forces
  • Dipole-dipole interactions
  • Hydrogen bonding
• Kinetic molecular theory
  • Particle motion and energy

7. Acids and Bases

• Properties of acids and bases
• The pH scale
• Acid-base theories
  • Arrhenius
  • Bronsted-Lowry
  • Lewis
• Acid-base neutralization reactions
• Titrations
  • Procedure and calculations
• Buffers and their role in maintaining pH

8. Thermochemistry

• Heat transfer in chemical reactions
• Enthalpy (ΔH)
• Calorimetry
  • Measuring heat changes
• Hess's Law
  • Combining reactions to find enthalpy changes
• Endothermic vs. exothermic processes

9. Chemical Kinetics

• Reaction rates
• Factors affecting reaction rates
  • Concentration
  • Temperature
  • Surface area
  • Catalysts
• Rate laws and reaction order
• Reaction mechanisms
  • Elementary steps
  • Rate-determining step
• Catalysis
  • Homogeneous and heterogeneous catalysts

10. Electrochemistry

• Redox reactions
  • Oxidation and reduction
• Electrochemical cells
  • Galvanic (voltaic) cells
  • Cell notation
• Oxidation-reduction potentials
• Electrolysis
• Applications
  • Batteries
  • Corrosion prevention