Chemistry Forum

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Join the expert discussion on chemistry. Chemistry is the study of the nature, properties, and composition of matter. Biochemistry, Organic, Inorganic, Analytical are topics that may be discussed.
Are molecules only held together by Covalent bonds?
  • Ben Sanders
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Inductive Effect: Why Does Charge Decrease?
  • Karan Punjabi
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7
Are All Chemical Reactions Reversible?
  • tonyjk
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Lattice energy and energy required to vaporize MgO ?
  • Hurricane939
  • · Replies 11 ·
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Standard Solutions for Raman Spectroscopy of TiO2
  • Anne
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Irreversible reaction in a battery
  • tonyjk
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Does Bromine (Br2) dissolve in water?
  • AqibH
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Nucleophilic Substitution Reaction: CH3Cl + AgF
  • Karan Punjabi
  • · Replies 10 ·
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10
Orbital Energy: Does It Exist Without Electrons?
  • UchihaClan13
  • · Replies 11 ·
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Notation of mass number of an element
  • Paradox101
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How to make nickel gallium compund? Basic advice / direction
  • rwooduk
  • · Replies 1 ·
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Avogadro's Law & Composition of Air: A Doubt/Misconception
  • UchihaClan13
  • · Replies 6 ·
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2- butoxyethanol alternative wanted
  • rvb1960
  • · Replies 1 ·
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Auto ignition temperature in pure O2
  • rpayne88
  • · Replies 8 ·
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8
Do phosphorus allotropes produce the same liquid?
  • DallMall
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Nitrogen Ground State: 2s^2 2p^3 ^4 S_{3/2}
  • pyroknife
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Acid Base Confusion: Solutions to Common Questions
  • UchihaClan13
  • · Replies 2 ·
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2
Hydrogen Emission Spectrum, Electrons, and Quantized Energy
  • Chrizappin
  • · Replies 3 ·
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3
Release or absortion of energy on bonds and phase change
  • FG_313
  • · Replies 3 ·
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3
Maintaining Charge Separation: The Role of EMF in Electrochemical Cells
  • tonyjk
  • · Replies 5 ·
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5
Superatom Chemistry: Where to Find Info & What's Going On?
  • Garlic
  • · Replies 4 ·
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4
Why NCl3 is dipole-dipole in intermolecular force?
  • terryds
  • · Replies 6 ·
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6
Planning to take a high school Chemistry licensing exam....
  • SinaloaPaisa
  • · Replies 1 ·
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Effusion of gas from higher to lower concentration under same pressure
  • krishna1615
  • · Replies 9 ·
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9
Can an atom exist without any electron?
  • ajayraho
  • · Replies 8 ·
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8
Is energy a particle or a wave?
  • Polaris417
  • · Replies 7 ·
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7
How does bicarb soda dissolve gypsum in plaster form?
  • Gypsy Moonlight
  • · Replies 5 ·
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5
Soap and water not suitable for washing paint thinner off?
  • forum23
  • · Replies 1 ·
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Trouble with Gibbs free energy equation
  • Eureka99
  • · Replies 8 ·
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Can Color Change Affect UV-Vis Spectrometry Readings at 270 nm?
  • davejieal
  • · Replies 1 ·
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Why Use Nitric Acid for Heavy Metal Digestion?
  • Henokh96
  • · Replies 4 ·
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4
NBS vs radical HBr in the bromination of olefins
  • Mike Dacre
  • · Replies 2 ·
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2
Need Help understanding energy and enthelpy please
  • Aditya Sky
  • · Replies 6 ·
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6
Proper chemical to dissolve/decompose adhesive scotch tape
  • Mohiuddin Munna
  • · Replies 2 ·
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Why Doesn't Coal Burn with a Flame?
  • partha1963
  • · Replies 4 ·
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Cigarette lighter in the fridge?
  • xunxine
  • · Replies 6 ·
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6
What causes the difference in reactivity between alkali metals?
  • Calpalned
  • · Replies 2 ·
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Why doesn't chlorine in seawater evaporate?
  • xpell
  • · Replies 16 ·
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Why is C-Cl bond in acyl chloride more reactive despite being highly polarized?
  • AryaUnderfoot
  • · Replies 5 ·
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5
Ketones behaviour towards isomerism?
  • hira123
  • · Replies 1 ·
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Why HCl is polar covalent compound?
  • hira123
  • · Replies 1 ·
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Water activity meter reading over 1
  • fedaykin
  • · Replies 5 ·
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5
Lower and Higher Heating Values of Coal: Why do they exist?
  • clustro
  • · Replies 3 ·
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3
Does combustion have to produce gaseous CO2?
  • Fooality
  • · Replies 32 ·
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Gauche Effect & SN2 Reactions: Sigma-Sigma* Orbital Interactions
  • Titan97
  • · Replies 3 ·
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3
Thiophene synthesis using H2S, HCl, and 1,4 diketone
  • Lotic7
  • · Replies 4 ·
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4
What is the significance of d (x^2-y^2) in the d subshell?
  • americast
  • · Replies 3 ·
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3
Calculate concentration of an acid
  • Physicsrapper
  • · Replies 2 ·
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2
Is litmus test a reliable criterion for classifying compounds as acids or bases?
  • PainterGuy
  • · Replies 11 ·
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11
Boiling Point of Rubbing Alcohol Lab | In-Class Experiment
  • UMath1
  • · Replies 13 ·
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Why is the Definition of Entropy Restricted to a Reversible Process?
  • lee403
  • · Replies 1 ·
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Thermite reaction on stove top?
  • bork2
  • · Replies 3 ·
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Variations in bubble persistance
  • _Anthony_
  • · Replies 1 ·
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Is bismuth safe to handle (touching, carrying it around....)?
  • BetaZeta2016
  • · Replies 12 ·
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Gauche effect in 2-fluoroethanol
  • Titan97
  • · Replies 1 ·
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High School Students: Chemistry, Ionic/Covalent Bonds, Urea & Hydroxyurea
  • Dave Scotese
  • · Replies 3 ·
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3
My copper electrodes are discoloring, and I'm not sure why
  • Hexnovae
  • · Replies 1 ·
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Diamagnetism and Hydrogen Bond Strength
  • HelloCthulhu
  • · Replies 1 ·
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Are there any interactions from mixing these chemicals?
  • Springwatertap
  • · Replies 2 ·
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Golden Book of chemistry is free
  • DennisR
  • · Replies 6 ·
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Experiment for testing type of catalyst on reaction rate?
  • Marie Cailey
  • · Replies 26 ·
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Stoichiometric relationship between liters and grams
  • ptownbro
  • · Replies 7 ·
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7
In what phase of matter do Neutrons/Protons/Electrons exist?
  • GiantSheeps
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Why reaction between alkali metals and water exothermic?
  • terryds
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2
How Much Epsom Salt for a 15% Magnesium Sulfate Solution?
  • HarryA
  • · Replies 2 ·
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Mixed Melting Point of Two Pure Solid Crystals
  • Mike Dacre
  • · Replies 7 ·
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7
Does Gibbs Free Energy play a role in the storage of energy in ATP?
  • tonyjk
  • · Replies 19 ·
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Where to put the dot on radicals (notation)
  • rwooduk
  • · Replies 4 ·
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Which is the more stable structure?
  • narutoverse13
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Why is there a nodal surface in the 2s subshell?
  • ARCHANASALANDRI
  • · Replies 5 ·
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Electrolysis of water and actual electrode potential.
  • Phy1
  • · Replies 3 ·
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Moles, Molecular mass, Number of Molecules Im lost.
  • MidgetDwarf
  • · Replies 19 ·
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Lab Calculations: Calculating Na+ & Protein Content of Fractions
  • Suzi19
  • · Replies 8 ·
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Interatomic spacing concept confusion
  • engineering810
  • · Replies 5 ·
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5
Does N+ Naturally Occur in Nature?
  • yrjosmiel73
  • · Replies 1 ·
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How can I calculate heat of combustion and enthalpy using Hess's Law?
  • Stephanus
  • · Replies 4 ·
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4
Magnesium in hydrochloric acid solution.
  • DarthRoni
  • · Replies 15 ·
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High Temperature electrochemical measurements
  • B17
  • · Replies 1 ·
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What are the Oxidation States of Carbon in Sebacic Acid and Propylene Glycol?
  • Justin LaRose
  • · Replies 5 ·
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A "neat set of reactions" that makes fuel on Mars
  • sciencegem
  • · Replies 7 ·
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7
Hydration of Alkenes: Need for Acid
  • Clack_Attack
  • · Replies 4 ·
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Partial Bond Fixation in Naphthalene
  • Titan97
  • · Replies 2 ·
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Reaction of Metal salt with Sulphuric acid
  • Titan97
  • · Replies 7 ·
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7
Why Does Sorbitol Have Four Chiral Centers Instead of Two?
  • toforfiltum
  • · Replies 8 ·
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"Periodic table" of combined elements
  • Bruno Tolentino
  • · Replies 5 ·
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5
Why Does Benzoic Acid Have a Higher Ka but Lower Solubility than Acetic Acid?
  • #neutrino
  • · Replies 2 ·
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Why do noble gas electron configurations have large radii?
  • TheExibo
  • · Replies 11 ·
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Uncovering the Mystery of Isotope Formation: The Role of Strong Interaction
  • aiop
  • · Replies 4 ·
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Explain chemical formulas PO43-
  • Robotesco
  • · Replies 4 ·
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Can I Calculate Salt Concentration in a 1500kg/m^3 Solution Using Density?
  • Supernova123
  • · Replies 5 ·
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Energy Released by Hydrocarbon Reactions
  • Stephanus
  • · Replies 6 ·
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Atom-Transfer Radical Polymerization: Method Question
  • Caleb Breaux
  • · Replies 3 ·
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Why two similar materials crystallise at different times?
  • 01Jose01
  • · Replies 1 ·
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How does fluorine actually help prevent tooth decay?
  • TheExibo
  • · Replies 1 ·
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What Breaks Down Meth? Solutions & Ideas
  • walran
  • · Replies 34 ·
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Could Sunlight Induce Chlorine Dioxide Isomerization?
  • caters
  • · Replies 3 ·
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Cleaning copper connections for high precision instruments
  • marcel
  • · Replies 22 ·
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Can something that dissolves in water be hydrophobic?
  • rwooduk
  • · Replies 6 ·
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Does anyone know how to make rust from steel plates
  • eightbitbeast
  • · Replies 2 ·
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When to Use Kw & Ka for Acid Dissociation Calculations
  • Nishantkumar19
  • · Replies 6 ·
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6