Apakah kimia itu?
Kimia merupakan cabang ilmu pengetahuan yang berhubungan dengan sifat, struktur, dan komposisi bahan dan reaksi mereka antara satu sama yang lain. Kimia adalah studi tentang materi dan interaksi antara berbagai jenis materi. Materi adalah segala sesuatu yang memiliki massa dan menempati ruang. Langkah pertama dalam belajar lebih banyak tentang kimia adalah dengan membaca sebanyak yang Anda bisa pada bidang yang Anda minati.
Kimia memiliki empat bidang utama dan banyak sub-spesialisasi. Keempat bidang utama tersebut adalah :
- Kimia Organik - Studi dari unsur karbon dan senyawanya termasuk materi hidup.
- Kimia anorganik - Penelitian dari semua elemen lain hal non-hidup.
- Kimia analitis - Penelitian dari "Apa itu?" atau kimia kualitatif dan "Berapa banyak yang ada?" yang kimia kuantitatif. kimia analitis adalah analisis senyawa.
- Kimia Fisik - Aspek-aspek kuantitatif dari sifat fisik bahan dan hubungan mereka dengan struktur kimia dan komposisi.
Untuk memperdalam pengetahuan tentang kimia, khususnya bagi guru dalam proses pembelajaran kepada siswa, mungkin bisa memanfaatkan video yang bisa didownload secara gratis, berikut linknya semoga bisa bermanfaat:
- Introduction to the atom
- Orbitals
- More on orbitals and electron configuration
- Electron Configurations
- Electron Configurations 2
- Valence Electrons
- Groups of the Periodic Table
- Periodic Table Trends: Ionization Energy
- Other Periodic Table Trends
- Ionic, Covalent, and Metallic Bonds
- Molecular and Empirical Formulas
- The Mole and Avogadro's Number
- Formula from Mass Composition
- Another mass composition problem
- Balancing Chemical Equations
- Stoichiometry
- Stoichiometry: Limiting Reagent
- Ideal Gas Equation: PV=nRT
- Ideal Gas Equation Example 1
- Ideal Gas Equation Example 2
- Ideal Gas Equation Example 3
- Ideal Gas Example 4
- Partial Pressure
- States of Matter
- States of Matter Follow-Up
- Specific Heat, Heat of Fusion and Vaporization
- Chilling Water Problem
- Phase Diagrams
- Van Der Waals Forces
- Covalent Networks, Metallic, and Ionic Crystals
- Vapor Pressure
- Suspensions, Colloids and Solutions
- Solubility
- Boiling Point Elevation and Freezing Point Supression
- Introduction to Kinetics
- Reactions in Equilibrium
- Mini-Video on Ion Size
- Keq Intuition (mathy and not necessary to progress)
- Keq derivation intuition (can skip; bit mathy)
- Heterogenous Equilibrium
- Le Chatelier's Principle
- Introduction to pH, pOH, and pKw
- Acid Base Introduction
- pH, pOH of Strong Acids and Bases
- pH of a Weak Acid
- pH of a Weak Base
- Conjugate Acids and Bases
- pKa and pKb Relationship
- Buffers
- Strong Acid Titration
- Weak Acid Titration
- Half Equivalence Point
- Titration Roundup
- Introduction to Oxidation States
- More on Oxidation States
- Hydrogen Peroxide Correction
- Redox Reactions
- Galvanic Cells
- Types of Decay
- Half-Life
- Exponential Decay Formula Proof (can skip, involves Calculus)
- Introduction to Exponential Decay
- More Exponential Decay Examples
- Macrostates and Microstates
- Quasistatic and Reversible Processes
- First Law of Thermodynamics/ Internal Energy
- More on Internal Energy
- Work from Expansion
- PV-diagrams and Expansion Work
- Proof: U=(3/2)PV or U=(3/2)nRT
- Work Done by Isothermic Process
- Carnot Cycle and Carnot Engine
- Proof: Volume Ratios in a Carnot Cycle
- Proof: S (or Entropy) is a valid state variable
- Thermodynamic Entropy Definition Clarification
- Reconciling Thermodynamic and State Definitions of Entropy
- Entropy Intuition
- Maxwell's Demon
- More on Entropy
- Efficiency of a Carnot Engine
- Carnot Efficiency 2: Reversing the Cycle
- Carnot Efficiency 3: Proving that it is the most efficient
- Enthalpy
- Heat of Formation
- Hess's Law and Reaction Enthalpy Change
- Gibbs Free Energy and Spontaneity
- Gibbs Free Energy Example
- More rigorous Gibbs Free Energy/ Spontaneity Relationship
- A look at a seductive but wrong Gibbs/Spontaneity Proof
- Stoichiometry Example Problem 1
- Stoichiometry Example Problem 2
- Limiting Reactant Example Problem 1
- Empirical and Molecular Formulas from Stoichiometry
- Example of Finding Reactant Empirical Formula
- Stoichiometry of a Reaction in Solution
- Another Stoichiometry Example in a Solution
- Molecular and Empirical Forumlas from Percent Composition
- Representing Structures of Organic Molecules
- Naming Simple Alkanes
- Naming Alkanes with Alkyl Groups
- Correction - 2-Propylheptane should never be the name!
- Common and Systematic Naming-Iso, Sec and Tert Prefixes
- More Organic Chemistry Naming Examples 1
- Organic Chemistry Naming Examples 2
- Organic Chemistry Naming Examples 3
- Organic Chemistry Naming Examples 4
- Organic Chemistry Naming Examples 5
- Naming Alkenes Examples
- Naming Alkyl Halides
- sp3 Hybridized Orbitals and Sigma Bonds
- Pi bonds and sp2 Hybridized Orbitals
- Newman Projections
- Newman Projections 2
- Chair and Boat Shapes for Cyclohexane
- Double Newman Diagram for Methcyclohexane
- Introduction to Chirality
- Chiral Examples 1
- Chiral Examples 2
- Cahn-Ingold-Prelog System for Naming Enantiomers
- R,S (Cahn-Ingold-Prelog) Naming System Example 2
- Stereoisomers, Enantiomers, Diastereomers, Constitutional Isomers and Meso Compounds
- Cis-Trans and E-Z Naming Scheme for Alkenes
- Entgegen-Zusammen Naming Scheme for Alkenes Examples
- Introduction to Reaction Mechanisms
- Markovnikov's Rule and Carbocations
- Addition of Water (Acid-Catalyzed) Mechanism
- Polymerization of Alkenes with Acid
- Sn2 Reactions
- Sn1 Reactions
- Steric Hindrance
- Sn2 Stereochemistry
- Solvent Effects on Sn1 and Sn2 Reactions
- Nucleophilicity (Nucleophile Strength)
- Nucleophilicity vs. Basicity
- E2 Reactions
- E1 Reactions
- Zaitsev's Rule
- Comparing E2 E1 Sn2 Sn1 Reactions
- E2 E1 Sn2 Sn1 Reactions Example 2
- E2 E1 Sn2 Sn1 Reactions Example 3
- Free Radical Reactions
- Alcohols
- Alcohol Properties
- Resonance
- Ether Naming and Introduction
- Cyclic ethers and epoxide naming
- Ring-opening Sn2 reaction of expoxides
- Sn1 and Sn2 epoxide opening discussion
- Aromatic Compounds and Huckel's Rule
- Naming Benzene Derivatives Introduction
- Electrophilic Aromatic Substitution
- Bromination of Benzene
Sumber : http://www.101science.com/Chemistry.htm
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