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Chemistry Forum

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.

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What's the difference between neutral and stable?

Aug 19, 2018 · Replies 7 · Sep 3, 2018

Replies: 7

Views: 5K

Why does NH3 turn into NH4+? Also question about bond EN.

Aug 31, 2018 · Replies 7 · Aug 31, 2018

Replies: 7

Views: 5K

Another radical question: oxidation limited by radicals

Aug 26, 2018 · Replies 5 · Aug 30, 2018

Replies: 5

Views: 2K

Motor Oil: Pure Substance or Mixture?

Aug 29, 2018 · Replies 8 · Aug 29, 2018

Replies: 8

Views: 3K

Why is iron added to the head of a match?

Aug 23, 2018 · Replies 2 · Aug 24, 2018

Replies: 2

Views: 2K

In coordinate bond, why doesn't the H^+ atom get a negative charge?

Aug 19, 2018 · Replies 32 · Aug 22, 2018

2

Replies: 32

Views: 4K

Is Carbon a Mono-Atomic Molecule?

Aug 20, 2018 · Replies 4 · Aug 20, 2018

Replies: 4

Views: 2K

If NH4+ is the cation, then what is the anion of it?

Aug 19, 2018 · Replies 3 · Aug 19, 2018

Replies: 3

Views: 2K

Where does the negative charge come from in H2S?

Aug 19, 2018 · Replies 1 · Aug 19, 2018

Replies: 1

Views: 2K

How is the motion of an electron around nucleus?

Aug 19, 2018 · Replies 1 · Aug 19, 2018

Replies: 1

Views: 2K

When the nucleus of H atom is neutral?

Aug 18, 2018 · Replies 13 · Aug 19, 2018

Replies: 13

Views: 2K

What does it mean by 1 amu? The mass of a proton?

Aug 1, 2018 · Replies 8 · Aug 19, 2018

Replies: 8

Views: 3K

Are Cl2, O2 , H2 etc neutral molecules?

Aug 17, 2018 · Replies 7 · Aug 17, 2018

Replies: 7

Views: 4K

Substances to absorb/adsorb HCHO vapours in car

Aug 16, 2018 · Replies 6 · Aug 17, 2018

Replies: 6

Views: 2K

When Cl, Br, I turn into Cl+, Br+ and I+?

Aug 12, 2018 · Replies 13 · Aug 17, 2018

Replies: 13

Views: 4K

Oddly specific number of elements

Jul 29, 2018 · Replies 14 · Aug 16, 2018

Replies: 14

Views: 2K

How to determine which radicals are dominant in oxidation

Jul 26, 2018 · Replies 2 · Aug 14, 2018

Replies: 2

Views: 2K

What is the difference between 'equivalent' and 'equivalence'?

Aug 14, 2018 · Replies 1 · Aug 14, 2018

Replies: 1

Views: 4K

How to calculate change in pressure from LN2 phase change

Aug 7, 2018 · Replies 6 · Aug 12, 2018

Replies: 6

Views: 3K

How Can I Safely Remove a Seized Aluminum Tube from a Gasoline or Diesel Tank?

Jul 31, 2018 · Replies 32 · Aug 11, 2018

2

Replies: 32

Views: 7K

Why was the F block of the periodic table created?

Jul 31, 2018 · Replies 11 · Aug 8, 2018

Replies: 11

Views: 3K

(split) Remove an Aluminum Tube

Aug 6, 2018 · Replies 6 · Aug 8, 2018

Replies: 6

Views: 2K

Formal name for molecular aggregations?

Jan 19, 2018 · Replies 16 · Aug 5, 2018

Replies: 16

Views: 3K

How can 10% ethonal gas produce 73% alcohol? (with water)

Apr 30, 2018 · Replies 16 · Aug 5, 2018

Replies: 16

Views: 5K

How big are the health effects of fluorocarbons?

Aug 2, 2018 · Replies 5 · Aug 4, 2018

Replies: 5

Views: 2K

YouTube purging chemistry videos

Jul 31, 2018 · Replies 9 · Aug 1, 2018

Replies: 9

Views: 3K

NMR nuclear spin absorption/emission question

Jul 30, 2018 · Replies 13 · Jul 31, 2018

Replies: 13

Views: 2K

Neutralize Hydrogen sulfide from piled sargasso seaweed

Jul 31, 2018 · Replies 1 · Jul 31, 2018

Replies: 1

Views: 1K

Electrode Polarization and Conductivity

Jul 30, 2018 · Replies 2 · Jul 31, 2018

Replies: 2

Views: 2K

Hybridisation Doubt: When Does it Take Place and When Not?

Jul 30, 2018 · Replies 5 · Jul 30, 2018

Replies: 5

Views: 2K

IUPAC Name of EDTA: 2,2′,2″,2′″-(ethane-1,2-diyldinitrilo-)κ^2N

Jul 28, 2018 · Replies 1 · Jul 28, 2018

Replies: 1

Views: 4K

Difference between 1 mole of CH4 and 1 molecule of CH4?

Jul 27, 2018 · Replies 4 · Jul 27, 2018

Replies: 4

Views: 4K

Where can I find rotational/vibrational temperature data for ethane?

Jul 27, 2018 · Replies 1 · Jul 27, 2018

Replies: 1

Views: 2K

Is AMU the unit for both 'atomic mass' and 'molecular mass'?

Jul 27, 2018 · Replies 2 · Jul 27, 2018

Replies: 2

Views: 2K

Does 'molar mass' include an atomic weight for single atom?

Jul 26, 2018 · Replies 3 · Jul 27, 2018

Replies: 3

Views: 2K

Where Does the Energy for Ionic Bonding Come From?

Jul 17, 2018 · Replies 8 · Jul 18, 2018

Replies: 8

Views: 3K

Volume of CO2 from a Tank at 30psi

Jul 12, 2018 · Replies 8 · Jul 17, 2018

Replies: 8

Views: 4K

Stability Order of resonating structures

Jul 13, 2018 · Replies 3 · Jul 16, 2018

Replies: 3

Views: 3K

Calculation of absorption spectra

Jul 13, 2018 · Replies 3 · Jul 15, 2018

Replies: 3

Views: 3K

Query on IUPAC nomenclature of coordination complexes

Jul 13, 2018 · Replies 0 · Jul 13, 2018

Replies: 0

Views: 2K

External hardware to use software?

Jul 9, 2018 · Replies 6 · Jul 13, 2018

Replies: 6

Views: 2K

How is the angle of BF3 120 degrees?

Jul 11, 2018 · Replies 7 · Jul 11, 2018

Replies: 7

Views: 3K

Is this interpretation correct? (diagrams of Carbon Monoxide and Carbon Dioxide)

Jul 10, 2018 · Replies 4 · Jul 11, 2018

Replies: 4

Views: 4K

How can there be back-bonding in PF3?

Jul 10, 2018 · Replies 6 · Jul 11, 2018

Replies: 6

Views: 5K

Is Molecular Orbital Theory really helpful?

Jul 10, 2018 · Replies 3 · Jul 11, 2018

Replies: 3

Views: 2K

What is Hydrogen Bond Auto-correlation function?

Jul 4, 2018 · Replies 5 · Jul 7, 2018

Replies: 5

Views: 3K

What is the Rydberg's formula? Will it be used here?

Jun 30, 2018 · Replies 8 · Jul 6, 2018

Replies: 8

Views: 2K

Why Isn't XeF4 Sea-Saw Shaped?

Jul 4, 2018 · Replies 4 · Jul 5, 2018

Replies: 4

Views: 6K

Can Nitrogen Replace CO2 for First Ignition in LPG Systems?

Jun 27, 2018 · Replies 19 · Jul 4, 2018

Replies: 19

Views: 5K

Why isn't ClF3 trigonal planar?

Jul 4, 2018 · Replies 3 · Jul 4, 2018

Replies: 3

Views: 12K

Question about simple kinetics and stoichiometry

Jun 25, 2018 · Replies 7 · Jul 2, 2018

Replies: 7

Views: 2K

Reaction of 118 elements simultaneously = product?

Jun 15, 2018 · Replies 7 · Jun 17, 2018

Replies: 7

Views: 2K

What would happen to a blob of mercury in space?

Jun 6, 2018 · Replies 19 · Jun 12, 2018

Replies: 19

Views: 7K

Unknown Electrolysis(?) reaction occurring

Jun 11, 2018 · Replies 2 · Jun 12, 2018

Replies: 2

Views: 3K

Hydrogen Peroxide cleaned burnt sugar from my pan

Jun 1, 2018 · Replies 4 · Jun 10, 2018

Replies: 4

Views: 6K

Liquid-solid phase composition: Binary phase diagrams

Jun 7, 2018 · Replies 4 · Jun 7, 2018

Replies: 4

Views: 2K

Change of P and T after a chemical reaction

Jun 4, 2018 · Replies 18 · Jun 5, 2018

Replies: 18

Views: 3K

Why doesn't the temperature of water slightly decrease during boiling?

May 28, 2018 · Replies 23 · Jun 4, 2018

Replies: 23

Views: 8K

Questions about deriving the Maxwell-Boltzmann Distribution

May 26, 2018 · Replies 6 · Jun 2, 2018

Replies: 6

Views: 4K

Heat released during combustion at constant pressure vs volume

May 30, 2018 · Replies 6 · Jun 1, 2018

Replies: 6

Views: 6K

What gas is produced when copper is added to diluted HCl?

May 27, 2018 · Replies 6 · May 29, 2018

Replies: 6

Views: 4K

How to write balanced chemical reaction?

May 27, 2018 · Replies 5 · May 27, 2018

Replies: 5

Views: 3K

On operation principles of zinc-manganese alkaline batteries

May 26, 2018 · Replies 1 · May 26, 2018

Replies: 1

Views: 3K

Screen producing potentials when light falls on it

May 26, 2018 · Replies 3 · May 26, 2018

Replies: 3

Views: 2K

Difference between cast iron and high carbon steel?

May 20, 2018 · Replies 3 · May 21, 2018

Replies: 3

Views: 6K

Best Temperature of water for Rinsing Dishes?

Jul 2, 2013 · Replies 33 · May 20, 2018

2

Replies: 33

Views: 74K

Will White Vinegar Corrode My Sink If Used for Cleaning?

May 19, 2018 · Replies 8 · May 20, 2018

Replies: 8

Views: 5K

Endothermic Process of Forming a Cation

May 18, 2018 · Replies 3 · May 18, 2018

Replies: 3

Views: 2K

What data do toxicologists collect and how?

May 17, 2018 · Replies 1 · May 17, 2018

Replies: 1

Views: 2K

Strange Nucleation Sites Inside a Diet Pepsi Bottle?

May 16, 2018 · Replies 3 · May 16, 2018

Replies: 3

Views: 3K

Copper + sulfuric acid + H2O = stink?

May 15, 2018 · Replies 3 · May 16, 2018

Replies: 3

Views: 2K

Chemical terminology for an electron in water

May 15, 2018 · Replies 5 · May 16, 2018

Replies: 5

Views: 2K

Spontaneous "back-and-forth" chemical reactions

May 13, 2018 · Replies 11 · May 16, 2018

Replies: 11

Views: 3K

Francis diagrams and Acetaldehyde?

May 5, 2018 · Replies 2 · May 12, 2018

Replies: 2

Views: 3K

Can Chirality Be Transferred from Chiral Molecules to Achiral Hosts?

Apr 10, 2018 · Replies 4 · May 10, 2018

Replies: 4

Views: 3K

Database for chemical and physical properties

Apr 30, 2018 · Replies 10 · May 1, 2018

Replies: 10

Views: 4K

How Can I Remove Excess Sugar from a 3 Bean Salad?

Apr 29, 2018 · Replies 3 · Apr 30, 2018

Replies: 3

Views: 3K

Does Beer-Lambert's law calculate the absorbance of a solute

Apr 28, 2018 · Replies 5 · Apr 28, 2018

Replies: 5

Views: 2K

Does Citric acid decompose in a lemon over time?

Feb 19, 2017 · Replies 30 · Apr 27, 2018

2

Replies: 30

Views: 12K

Theoretical ξr of a molecule from the absolute configuration

Apr 18, 2018 · Replies 2 · Apr 27, 2018

Replies: 2

Views: 6K

2^k factorial experiment design

Apr 24, 2018 · Replies 1 · Apr 24, 2018

Replies: 1

Views: 2K

How Can I Test the pH of Foods and Drinks?

Apr 16, 2018 · Replies 2 · Apr 20, 2018

Replies: 2

Views: 3K

Can Urochrome be Cracked into Individual Pyrroles?

Apr 19, 2018 · Replies 2 · Apr 20, 2018

Replies: 2

Views: 2K

Will an Enzyme That Eats Plastic Solve Our Pollution Problem?

Apr 20, 2018 · Replies 6 · Apr 20, 2018

Replies: 6

Views: 3K

1 volume of hydrogen = how many hydrogen molecules there?

Apr 19, 2018 · Replies 3 · Apr 19, 2018

Replies: 3

Views: 3K

'A single molecule of H2O' vs 'a single atom of H2O'

Apr 17, 2018 · Replies 38 · Apr 19, 2018

2

Replies: 38

Views: 6K

The difference between 1 mole of C and 1 molecule of C?

Apr 15, 2018 · Replies 18 · Apr 16, 2018

Replies: 18

Views: 3K

Copper (II) salts and SO2: a question

Apr 11, 2018 · Replies 3 · Apr 14, 2018

Replies: 3

Views: 3K

Why Is n-Heptane the Baseline for Octane Ratings?

Apr 12, 2018 · Replies 13 · Apr 13, 2018

Replies: 13

Views: 3K

UV-Vis spectroscopy: Changes in refractive index

Apr 10, 2018 · Replies 7 · Apr 11, 2018

Replies: 7

Views: 3K

What to say: "one mole of C atoms" or "one mole of C molecules"?

Apr 11, 2018 · Replies 8 · Apr 11, 2018

Replies: 8

Views: 2K

UV-Vis spectroscopy: non-bonding electrons and chromophores

Jun 19, 2016 · Replies 11 · Apr 9, 2018

Replies: 11

Views: 8K

Does the initial temperature affect the change in temp?

Apr 7, 2018 · Replies 13 · Apr 8, 2018

Replies: 13

Views: 6K

Find Compound to Break Super Concrete Slab

Apr 7, 2018 · Replies 2 · Apr 7, 2018

Replies: 2

Views: 2K

Why does the melting point of aspirin increase

Mar 28, 2018 · Replies 19 · Apr 6, 2018

Replies: 19

Views: 12K

Is There a Safer Alternative to Creating a Tree of Saturn with Lead Acetate?

Apr 5, 2018 · Replies 3 · Apr 5, 2018

Replies: 3

Views: 2K

Bohr Model Modifications into the Rutherford Model

Apr 2, 2018 · Replies 1 · Apr 2, 2018

Replies: 1

Views: 2K

Is energy transfer nonadiabatic or adiabatic?

Mar 24, 2018 · Replies 7 · Apr 2, 2018

Replies: 7

Views: 2K

Enthalpy of Combustion: Definition & Reactions

Mar 27, 2018 · Replies 2 · Mar 28, 2018

Replies: 2

Views: 2K

Negative Sign of Binding Energy & Its Impact on Electron Energy in Bohr Orbits

Mar 25, 2018 · Replies 8 · Mar 25, 2018

Replies: 8

Views: 2K

Chemistry

Welcome to the Chemistry forum!

Chemistry is the scientific study of matter, its properties, composition, structure, and the changes it undergoes during chemical reactions. It plays a central role in understanding the building blocks of the universe, encompassing the study of atoms, molecules, elements, and compounds.

Chemists investigate the interactions and forces between particles at the atomic and molecular levels, contributing to our understanding of various natural phenomena. The field is divided into branches such as organic chemistry, inorganic chemistry, physical chemistry, and biochemistry, each focusing on specific aspects of chemical systems.

Chemistry is not only a foundational science but also a driving force behind technological advancements, materials development, pharmaceuticals, and numerous industrial applications.

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