???? FOLLOW OTHER REVIEW CLASSES ???? ✓ Evolution of Atomic Models - • Evolution of Atomic Models Review ✓ Atomic Structure - • Atom and Its Structure Review ✓ Electronic Distribution - • ELECTRONIC CONFIGURATION Review ✓ Periodic Table - • Periodic Table Review ✓ Electronic Distribution & Periodic Table - • Electronic Configuration and Periodic Table... ✓ Chemical Bonds - • CHEMICAL BONDS OCTET RULE ... ✓ Oxides - • OXIDES - REVIEW INORGANIC CHEMISTRY ✓ Periodic Properties - • Periodic Properties Review ✓ Molecular Geometry - • Molecular Geometry Review ✓ Polarity of Bonds and Molecules - • Polarity of Bonds and Molecules ... ✓ Intermolecular Interactions - • Intermolecular Interactions Review ✓ MOL (Atomic Molecular Theory) - • MOL MOLAR MASS REVIEW ✓ Study of Gases - • Study of Gases Review ✓ Thermochemistry - • THERMOCHEMISTRY HESS'S LAW Review ✓ Chemical Kinetics - • CHEMICAL KINETICS REVIEW CLASS ... ✓ Chemical Equilibrium - • Chemical Equilibrium Definition, Const... ✓ Electrochemistry (Introduction) - • NOX REDOX REACTIONS REDOX BALANCING... ✓ Electrochemical Batteries - • ELECTROCHEMICAL BATTERIES GALVANIZED CELLS... ✓ Electrolysis - • ELECTROLYSIS ELECTROCHEMISTRY CLASS OF ... ✓ Organic Chemistry - • Introduction to Organic Chemistry Review ✓ Organic Functions - • Organic Functions Review ✓ Planar Isomerism - • Planar Isomerism Review ✓ Spatial Isomerism - • Spatial Isomerism Review ✓ Acidity and Basicity - • Acidity and Basicity Review ✓ Addition Reactions - • Addition Reactions Review ✓ Elimination Reactions - • Elimination Reactions Review ✓ Organic Redox Reactions - • OXIDATION Reactions in ORGANIC Chem... ✓ Esterification Reaction - • Esterification, Ester Hydrolysis, Sa... ✓ Petroleum - • Petroleum Energy Resources Rev... ✓ Polymers - • POLYMERS POLYMERIZATION REACTION ... In this class we will review the initial concepts of electrochemistry: NOX: practical rules for determining the oxidation number REDOX reactions: oxidation and reduction reactions Oxidizing and reducing agents Balancing by the redox method (UNESP 2020) In gallium-aluminum nitride, the oxidation numbers of nitrogen and the Al-Ga couple are, respectively, (UNESP 2016) In recent decades, sulfur dioxide (SO2) has been the main atmospheric contaminant that affects the distribution of lichens in urban and industrial areas. Lichens absorb sulfur dioxide and, with repeated exposure to this pollutant, they accumulate high levels of sulfates (SO42–) and bisulfates (HSO4–), which prevents the lichen constituents from performing vital functions, such as photosynthesis, respiration and, in some cases, nitrogen fixation. In this transformation of sulfur dioxide into sulfates and bisulfates, the oxidation number of the element sulfur varies from __________ to __________, therefore, it undergoes __________. The gaps in this text are, correctly and respectively, filled in by: For those of you who are going to start studying electrochemistry, here is the sequence of classes: 1. What is NOX? - • What is NOX? Oxidation Number And... 2. Calculation of NOX - • Calculation of NOX Oxidation Number ... 3. Carbon Nox (Organic Chemistry) - • Carbon Nox Nox of Organic Compounds... 4. Oxidation-reduction Reactions - • OXIDATION-REDUCTION REACTIONS REDOX REACTIONS... 5. Redox Balancing - • Redox Balancing Electrochemistry ... 6. Semi-Reactions (oxidation and reduction) - • Redox Balancing Electrochemistry ... 7. Electrochemical Cells (Galvanic Cells) - • Electrochemical Cells Introduction ... 8. Daniell Cell (Copper/Zinc Cell) - • DANIELL CELL COPPER ZINC CELL ... 9. What is the Salt Bridge for - • Salt Bridge What is it for? Cell... 10. Notation (IUPAC) of Electrochemical Cells - • Cell Notation Electrochemistry ... 11. Reduction Potential (Potential Table) - • REDUCTION POTENTIAL POT TABLE... 12. Calculation of Battery Potential Difference (ddp) - • Potential Difference or Electrochemical For... 13. Spontaneity of Redox Reactions - • Reaction Spontaneity Electrochem... 14. Corrosion of Metals in the Environment - • CORROSION CONCEPT OF CORROSION ELECTRO... 15. Protection against Corrosion - • Metal Protection Coating of ... 16. Sacrificial Metal - • SACRIFICIAL METAL SACRIFICIAL ANODE... 17. How does the Breathalyzer (breathalyzer) work - • Breathalyzer Organic Reactions Electro... 18. Fuel Cells or Stacks - • FUEL CELLS: What they are and A... 19. Ion-Electron Balancing - • Ion-Electron Balancing Step by P... 20. Introduction to Electrolysis - • Electrolysis General Concepts Electro... 21. Igneous Electrolysis - • Igneous Electrolysis Electrochemistry 22. Aluminum Production by Igneous Electrolysis - • Aluminum Production Electrochemistry 23. General concepts of aqueous electrolysis - • Aqueous Electrolysis General Concepts ... 24. Priority Queue in Aqueous Electrolysis - • Aqueous Electrolysis General Concepts ... 25. Water Electrolysis - • Aqueous Electrolysis Water Electrolysi