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OpenStem
@openstem · Joined Jul 2026
7420 public items8 groups
Collection4 items
01Chemistry · L3 · Specific Latent Heat
02Chemistry · L3 · Specific Latent Heat
03Chemistry · L3 · Why Temperature Plateaus During a Phase Change
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Chemistry · L3 · Specific Latent HeatCollection4 items
01Chemistry · L3 · Redox Titrations
02Chemistry · L3 · Redox Titrations
03Chemistry · L3 · Iodometric Titration — the Starch Endpoint
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Chemistry · L3 · Redox TitrationsCollection2 items
01Chemistry · L4 · Atomic Structure & Quantum Numbers
02Chemistry · L4 · Periodicity & Chemical Bonding
Chemistry · L4 · Atomic Structure, Periodicity & Bonding
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Chemistry · L4 · Atomic Structure, Periodicity & BondingCollection1 items
01Chemistry · L4 · Stoichiometry — Moles, Equations & Reactions
Chemistry · L4 · Stoichiometry
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Chemistry · L4 · StoichiometryCollection2 items
01Chemistry · L4 · Thermochemistry & Chemical Equilibrium
02Chemistry · L4 · Chemical kinetics: rate laws, activation energy, and catalysis
Chemistry · L4 · Thermochemistry & Kinetics
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Chemistry · L4 · Thermochemistry & KineticsCollection4 items
01Chemistry · L4 · Organic Chemistry — Functional Groups & Reactions
02Chemistry · L4 · Organic reaction mechanisms: nucleophiles, electrophiles, and arrow pushing
03Chemistry · L4 · Organic reaction pathway flowchart
+1 moreChemistry · L4 · Organic Chemistry Basics
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Chemistry · L4 · Organic Chemistry BasicsCollection5 items
01Chemistry · L4 · Electrochemistry: Standard Potentials & Cell Calculations
02Chemistry · L4 · Electrochemistry: standard potentials, the Nernst equation, and cell types
03Chemistry · L4 · Galvanic vs electrolytic cells: energy conversion & examples
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Chemistry · L4 · ElectrochemistryCollection5 items
01Chemistry · L4 · Coordination Chemistry
02Chemistry · L4 · Coordination complexes: ligands, naming, and why they're colored
03Chemistry · L4 · Naming a coordination complex, step by step
+2 moreChemistry · L4 · Coordination Chemistry
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Chemistry · L4 · Coordination ChemistryCollection6 items
01Chemistry · L4 · Freezing Point Depression & Boiling Point Elevation
02Chemistry · L4 · Raoult's Law & Osmotic Pressure
03Chemistry · L4 · Colligative Properties (Quantitative)
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Chemistry · L4 · Colligative PropertiesCollection4 items
01Chemistry · L4 · Solubility Equilibria (Ksp)
02Chemistry · L4 · Solubility Equilibria: Ksp, common ion effect, and precipitation
03Chemistry · L4 · Solubility equilibrium: dissolution and the common ion effect
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Chemistry · L4 · Solubility Equilibria (Ksp)Collection9 items
01Chemistry · L4 · Intermolecular forces & molecular polarity — vectors, polarizability, and boiling-point trends
02Chemistry · L4 · Intermolecular Forces & Molecular Polarity
03Chemistry · L4 · Is a molecule polar? Bond dipoles as vectors
+6 moreChemistry · L4 · Intermolecular Forces & Polarity
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Chemistry · L4 · Intermolecular Forces & PolarityCollection11 items
01Chemistry · L4 · Organic Chemistry II — The Oxidation Ladder
02Chemistry · L4 · Organic Chemistry II — Carboxylic Acid Strength & Esterification
03Chemistry · L4 · The oxidation ladder: alcohols → aldehydes/ketones → carboxylic acids
+8 moreChemistry · L4 · Organic Chemistry II
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Chemistry · L4 · Organic Chemistry IICollection9 items
01Chemistry · L4 · Aromatic Chemistry & EAS
02Chemistry · L4 · Aromatic Chemistry & Electrophilic Aromatic Substitution
03Chemistry · L4 · EAS Mechanism: Attack, Arenium Ion, Rearomatisation
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Chemistry · L4 · Aromatic ChemistryCollection7 items
01Chemistry · L4 · Stereochemistry: Chirality, Enantiomers & R/S
02Chemistry · L4 · Stereochemistry: Chirality, Enantiomers, and R/S Naming
03Chemistry · L4 · Is This Carbon a Chiral Centre?
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Chemistry · L4 · StereochemistryCollection6 items
01Chemistry · L4 · Nuclear Chemistry: The Decay Law, Mass Defect & Binding Energy
02Chemistry · L4 · Nuclear Chemistry — The Decay Law & Radiometric Dating
03Chemistry · L4 · Nuclear Chemistry — Mass Defect & Binding Energy
+3 moreChemistry · L4 · Nuclear Chemistry
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Chemistry · L4 · Nuclear ChemistryCollection6 items
01Chemistry · L4 · Solid State Chemistry — Crystal Classes & Bonding
02Chemistry · L4 · Solid State Chemistry — Unit Cells & Cubic Packing
03Chemistry · L4 · Solid state chemistry: crystal classes and unit cells
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Chemistry · L4 · Solid State ChemistryCollection5 items
01Chemistry · L4 · Spectroscopy Basics
02Chemistry · L4 · Spectroscopy basics: what each technique measures
03Chemistry · L4 · How spectroscopy works: energy in, signal out
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Chemistry · L4 · Spectroscopy BasicsCollection6 items
01Chemistry · L4 · Gibbs Free Energy — Spontaneity Cases & Crossover Temperature
02Chemistry · L4 · Gibbs Free Energy — ΔG° and the Equilibrium Constant K
03Chemistry · L4 · Gibbs free energy: the four cases, the crossover point, and the road to K
+3 moreChemistry · L4 · Gibbs Free Energy & Spontaneity
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Chemistry · L4 · Gibbs Free Energy & SpontaneityCollection6 items
01Chemistry · L4 · Thermoplastics, Thermosets & Elastomers
02Chemistry · L4 · Polymer Molecular Weight & Polydispersity
03Chemistry · L4 · Classifying Polymers by Thermal & Mechanical Behavior
+3 moreChemistry · L4 · Polymer Chemistry
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Chemistry · L4 · Polymer ChemistryCollection7 items
01Chemistry · L4 · Amino Acid Structure
02Chemistry · L4 · From amino acids to protein structure — a chemist's view
03Chemistry · L4 · Building a polypeptide: repeated condensation
+4 moreChemistry · L4 · Biochemistry Basics
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Chemistry · L4 · Biochemistry BasicsCollection5 items
01Chemistry · L4 · Real Gases & the Ideal Gas Law
02Chemistry · L4 · Real Gases & the Ideal Gas Law
03Chemistry · L4 · Why Real Gases Deviate from Ideal
+2 moreChemistry · L4 · Real Gases & the Ideal Gas Law
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Chemistry · L4 · Real Gases & the Ideal Gas LawCollection5 items
01Chemistry · L4 · Catalysis & Green Chemistry
02Chemistry · L4 · Catalysis and green chemistry: lowering barriers, cutting waste
03Chemistry · L4 · Homogeneous vs heterogeneous catalysis: how to tell them apart
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Chemistry · L4 · Catalysis & Green ChemistryCollection4 items
01Chemistry · L4 · Transition Metal Chemistry in Solution
02Chemistry · L4 · Transition metal chemistry in solution: colors, amphoterism, and trends
03Chemistry · L4 · Testing whether a metal hydroxide is amphoteric
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Chemistry · L4 · Transition Metal Chemistry in SolutionCollection4 items
01Chemistry · L4 · Polyprotic Acids
02Chemistry · L4 · Polyprotic acids: stepwise dissociation, successive Ka values, and multi-equivalence-point titrations
03Chemistry · L4 · Multi-equivalence-point titration curve of a triprotic acid
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Chemistry · L4 · Polyprotic AcidsCollection4 items
01Chemistry · L4 · Integrated Rate Laws
02Chemistry · L4 · Integrated Rate Laws: concentration-time relationships, half-lives, and linearization
03Chemistry · L4 · Classifying reaction order by successive half-lives
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Chemistry · L4 · Integrated Rate LawsCollection4 items
01Chemistry · L4 · Atmospheric Chemistry — Ozone and the Greenhouse Effect
02Chemistry · L4 · Atmospheric Chemistry — Ozone and the Greenhouse Effect
03Chemistry · L4 · Greenhouse Gas Infrared Absorption and Re-emission
+1 moreChemistry · L4 · Atmospheric Chemistry — Ozone and the Greenhouse Effect
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Chemistry · L4 · Atmospheric Chemistry — Ozone and the Greenhouse EffectCollection4 items
01Chemistry · L4 · Lewis Acids and Bases
02Chemistry · L4 · Lewis Acids and Bases
03Chemistry · L4 · Brønsted-Lowry as a subset of Lewis acid-base theory
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Chemistry · L4 · Lewis Acids and BasesCollection4 items
01Chemistry · L4 · Addition and Elimination Mechanisms
02Chemistry · L4 · Addition and Elimination Mechanisms
03Chemistry · L4 · E1 vs E2: reading the pathway from substrate, base, and solvent
+1 moreChemistry · L4 · Addition and Elimination Mechanisms
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Chemistry · L4 · Addition and Elimination MechanismsCollection4 items
01Chemistry · L4 · Buffer Calculations and Capacity
02Chemistry · L4 · Buffer Calculations and Capacity: Henderson–Hasselbalch, worked pH calculations, and capacity
03Chemistry · L4 · Buffer Response to Added Strong Acid or Base
+1 moreChemistry · L4 · Buffer Calculations and Capacity
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Chemistry · L4 · Buffer Calculations and CapacityCollection4 items
01Chemistry · L4 · Complex Ions and Solubility
02Chemistry · L4 · Complex Ions and Solubility
03Chemistry · L4 · Amphoteric hydroxide dissolving via complex-ion formation
+1 moreChemistry · L4 · Complex Ions and Solubility
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Chemistry · L4 · Complex Ions and Solubility