Knowledge Base

Atomic Structure Electron Configuration Ionic and Covalent Bonds Nucleophile vs. Electrophile IUPAC Nomenclature Types of Isomers Halogenation of Alkanes Scientific Method and Notation The International System of Units The Properties of Matter Derived Units: Volume, Density, & Energy Uncertainty in Measurement Atoms and Elements States and Classification of Matter The Atomic Theory Atomic Numbers Cations & Anions Naming Ionic Compounds Law of Conservation of Mass Empirical and Molecular Formulas Chemical Reactions and Equations Balancing Chemical Equations Group Classification and Characteristics The Periodic Table Alkyl Halide Reactions Nomenclature of Alcohols Alcohol Protecting Groups Nomenclature of Heterocycles Aromatic Heterocyclopentadienes Synthesis of Amino Acids Peptide Sequencing Nature of Light Photons and Photoelectric Effect Wavelike Properties of Matter Atomic Line Spectra Quantum Numbers Electronic Structure Principles Electron Configurations Ground State and Excited States Electron Affinity Types of Bonding Ionic Compounds Electron Configuration of Ions Ionic Radius Formation of Ionic Solids Lewis Structures Exceptions to the Octet Rule Electronegativity Molecular Shape VSEPR Theory Electron and Molecular Geometry Deviation from Ideal Bond Angles Molecular Geometry and Polarity Molar Mass and Mole Number Valence Bond Theory Single and Multiple Bonds Hybrid Orbitals Molecular Orbital Theory Acid-Base Theories Oxidation-Reduction Reactions Types of Chemical Reactions Atomic Masses Percent Composition by Mass Combustion Analysis Stoichiometry Limiting Reactant Reaction Yield Molarity vs. Molality Electrolytes Acid-Base Titrations Gas Properties The Gas Laws Gas Mixtures The Kinetic Molecular Theory of Gases Internal Energy, Heat and Work Enthalpy Hess's Law Standard Enthalpies of Formation Bond Enthalpies Calorimetry and Heat Capacity Intermolecular Forces Properties of Liquids Vapor Pressure Colloids Gas Diffusion and Effusion Mean Free Path Reaction Rates First-Order Reactions Radioactive Decay Collision Theory The Arrhenius Equation Solution Concentrations Raoult’s Law Boiling Point Elevation Chemical Equilibrium Le Châtelier’s Principle Approach to Equilibrium Acids and Bases pH and pOH Buffers Indicators Solubility-Product Constants Formation of Complexes Precipitation Criteria Entropy Changes for Reactions Oxidation-Reduction Reactions Half Reactions Balancing Equations for Oxidation-Reduction Reactions Electric Energy and Charge Electrochemical Cells Cell Diagrams Lewis Structures The Mole and Avogadro's Number Core and Valence Electrons Effective Nuclear Charge The Octet Rule Lone Pair Effect Factors Favoring SN1 or SN2

Knowledge Base - Chemistry Coach

1
26/11/2021
Shapes of Molecules
Shapes of Molecules
Does Shape Matter in Molecular Geometry? What is the Difference Between Molecular Geometry and Molecular Shape? Explore the structure of molecules!
AXE method bonding pairs bonding patterns central atom ideal bond angle lone pair long-chain molecule molecular geometry molecular shape multiple bonds multiple central atoms non-polar physical properties polarity polar steric number structure of molecules VSEPR
2
07/11/2021
Quantization of Kinetic Energy
Quantization of Kinetic Energy
More than 120 years ago, Max Planck formulated the mathematical theory of quantized energy in his endeavor to explain black body radiation...
atomic spectra blackbody blackbody radiation discrete Planck’s constant quantization
3
06/11/2021
The Basics of Kinetic Molecular Theory in Chemistry
The Basics of Kinetic Molecular Theory in Chemistry
Kinetic Molecular Theory is a model that attempts to explain what happens in terms of groups of atoms and molecules colliding with each other...
atoms average kinetic energy chemical properties of matter diffusion gas kinetic kinetic molecular theory lattice liquid molecules particles phase physical properties of matter pressure solid temperature volume
4
19/10/2021
What is the Periodic Table?
What is the Periodic Table?
What is a Simple Definition of the Periodic Table? The periodic table can most simply be described as a chart that organizes the chemical elements of matter into an easy-to-identify visual flow chart. 
periodic table chemical elements of matter periods groups atomic number electron shell configuration filling of electrons in valence shells Dimitri Mendeleev unstable elements transactinides element blocks s-block p-block d-block f-block non-reactive elements metals metalloids nonmetals g-block extended periodic table IUPAC The Long Periodic Table The 32-Column Periodic Table Madelung rule Aufbau principle
5
17/10/2021
Energy and All of Its Potentials
Energy and All of Its Potentials
Energy is a central concept to chemistry, but what are these different kinds? Find out here!
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15/10/2021
A Quick Guide to the Properties of Matter
A Quick Guide to the Properties of Matter
What are the properties of matter? Learn about the structure of matter, different states of matter, physical vs. chemical properties, and more!
intensive properties chemical potential concentration density magnetic permeability melting point boiling point specific gravity molality pressure refractive index specific conductance electrical conductivity specific heat capacity specific internal energy specific rotation specific volume standard reduction potential surface tension temperature thermal conductivity viscosity extensive properties amount of substance enthalpy entropy Gibbs energy heat capacity Helmholtz energy internal energy mass volume chemical properties ability to corrode acidity basicity substance chemical stability combustibility enthalpy of formation flammability heat of combustion preferred oxidation state toxicity average atomic mass  atomic size electron configuration electronegativity Pauling First Ionization Energy radii Van der Waals   covalent valence electrons electron gain enthalpy  electron affinity Properties of Matter physical properties extensive intensive chemical properties states of matter properties of elements periodic table compound homogeneous mixture heterogeneous mixture