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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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Why does collision frequency decrease with increasing T?

sgstudent
Apr 23, 2015 · Replies 3 · Apr 24, 2015

Replies: 3

Got Gallium, what reaction is this?

nitsuj
Apr 23, 2015 · Replies 7 · Apr 24, 2015

Replies: 7

Direction of equilibrium if you remove heat from exothermic reaction

lonely_nucleus
Apr 22, 2015 · Replies 13 · Apr 24, 2015

Replies: 13

Is the Calculation of Lattice Energy Correct at Time 2:40 in This Video?

gracy
Apr 23, 2015 · Replies 1 · Apr 23, 2015

Replies: 1

Which Causes More Eye Damage: Acid or Base?

Emmanuel_Euler
Apr 15, 2015 · Replies 17 · Apr 22, 2015

Replies: 17

Have you had experience with hydrofluoric acid in a cleanroom setting?

kooglof
Apr 14, 2015 · Replies 8 · Apr 22, 2015

Replies: 8

What color will the final product of the copper nitrate reaction be?

zaddyzad
Sep 30, 2013 · Replies 2 · Apr 21, 2015

Replies: 2

What is the chemical reaction with copper?

oem7110
Feb 6, 2012 · Replies 9 · Apr 21, 2015

Replies: 9

Ionization ENERGY -Why removal of electron from gaseous atom

gracy
Apr 19, 2015 · Replies 9 · Apr 21, 2015

Replies: 9

Determine Coordination Number of Metal Ions

Teemo
Apr 18, 2015 · Replies 1 · Apr 20, 2015

Replies: 1

Is It Safe to Make HF Acid at Home?

Emmanuel_Euler
Apr 20, 2015 · Replies 1 · Apr 20, 2015

Replies: 1

Charging objects by friction & chemical reaction

simplescience
Sep 5, 2014 · Replies 10 · Apr 20, 2015

Replies: 10

Why do we draw unbonded electrons in pairs?

Leoragon
Apr 19, 2015 · Replies 5 · Apr 20, 2015

Replies: 5

Crystals of high ionic charge are less soluble. why?

gracy
Apr 19, 2015 · Replies 4 · Apr 20, 2015

Replies: 4

Miscible - acetone in petrol/oil & water?

marcophys
Apr 18, 2015 · Replies 2 · Apr 19, 2015

Replies: 2

Condition for formation of ionic bond

gracy
Apr 19, 2015 · Replies 7 · Apr 19, 2015

Replies: 7

Bond Distance: Attraction vs. Repulsion

gracy
Apr 18, 2015 · Replies 1 · Apr 18, 2015

Replies: 1

Unwanted Calcium Carbonate in Refractory Cement

Matcon
Apr 4, 2015 · Replies 9 · Apr 18, 2015

Replies: 9

Sample preparation of sunscreen for use in UV-Vis

Anne
Mar 13, 2015 · Replies 8 · Apr 17, 2015

Replies: 8

How to Assign J''-J' Values in Rotational Spectrum with Only Energy Value?

jl29488
Apr 16, 2015 · Replies 2 · Apr 16, 2015

Replies: 2

How is this H+ ion bonded when NAD becomes NADH +H+ ?

John421
Apr 12, 2015 · Replies 4 · Apr 14, 2015

Replies: 4

Does Conservation of Mass Make This "Health Study" Invalid?

Levitikuz
Apr 14, 2015 · Replies 7 · Apr 14, 2015

Replies: 7

What Does Molecular Orbital Theory Say About the Overlap of Atomic Orbitals?

jdawg
Apr 11, 2015 · Replies 2 · Apr 14, 2015

Replies: 2

How Does Higher Relative Density Affect Milk Quality?

Aceix
Apr 13, 2015 · Replies 5 · Apr 13, 2015

Replies: 5

Gibbs free energy and equilibrium constant at a high T

gmianosi
Apr 12, 2015 · Replies 5 · Apr 13, 2015

Replies: 5

Molecular Modeling: Geometry Optimization, Vibration Analyses & More

ModestyKing
Apr 7, 2015 · Replies 1 · Apr 13, 2015

Replies: 1

Homogeneous and heterogeneous mixtures

gracy
Apr 10, 2015 · Replies 2 · Apr 10, 2015

Replies: 2

Calculating volume occupied by 1 equivalent of gas

AdityaDev
Apr 8, 2015 · Replies 18 · Apr 10, 2015

Replies: 18

Which anion could be used to selectively remove silver ions?

HHH
Mar 25, 2015 · Replies 4 · Apr 10, 2015

Replies: 4

Benzene in water adsorption test and GC without extraction?

RobinDelBosco
Apr 3, 2015 · Replies 1 · Apr 9, 2015

Replies: 1

Chemical equilibrium for simultaneous dissociation reactions

Emara
Apr 8, 2015 · Replies 1 · Apr 8, 2015

Replies: 1

Best place to sell surplus chemicals?

aroc91
Apr 5, 2015 · Replies 7 · Apr 7, 2015

Replies: 7

Is the difference of two state functions a state function?

tomkoolen
Apr 6, 2015 · Replies 11 · Apr 7, 2015

Replies: 11

I with an old VGA Smart-IQ+ Mass spectrometer

KMikk
Mar 27, 2015 · Replies 5 · Apr 5, 2015

Replies: 5

Hydration Energy Order of Alkali Metals

gracy
Apr 3, 2015 · Replies 1 · Apr 3, 2015

Replies: 1

What is the best solvent for removing bentonite clay?

cseal
Mar 28, 2015 · Replies 2 · Apr 3, 2015

Replies: 2

How to reduce the flammability of crude oil?

jjoll
Apr 2, 2015 · Replies 3 · Apr 2, 2015

Replies: 3

How Does Catalysis Work in Catalytic Converters?

sciman
Mar 29, 2015 · Replies 1 · Apr 2, 2015

Replies: 1

How does enthelpy change as the reaction proceeds?

sgstudent
Mar 28, 2015 · Replies 37 · Mar 31, 2015

2

Replies: 37

Rutherford's Experiment: Explaining Why Positive Charges Repel

t1mm3h
Dec 17, 2013 · Replies 7 · Mar 31, 2015

Replies: 7

Why do sugars have higher boiling points than water?

Apogee
Mar 31, 2015 · Replies 1 · Mar 31, 2015

Replies: 1

Will Ca(HCO3)2(aq) + 2NH3(aq) react?

ejnovek
Mar 28, 2015 · Replies 3 · Mar 28, 2015

Replies: 3

How Does Molasses Remove Rust?

kokolyia
Mar 28, 2015 · Replies 4 · Mar 28, 2015

Replies: 4

Understanding LCAO Matrix Solutions for Molecules

Astudious
Mar 27, 2015 · Replies 1 · Mar 28, 2015

Replies: 1

Why does a non-polar molecule imply insolubility in water?

student34
Mar 27, 2015 · Replies 4 · Mar 27, 2015

Replies: 4

Risks of explosion mixing O2 and H2 in Ar magnetron plasma?

atomica68
Mar 13, 2015 · Replies 3 · Mar 27, 2015

Replies: 3

Photoelectrochemical Cell: Can they work with external potential?

username1991
Mar 22, 2015 · Replies 1 · Mar 27, 2015

Replies: 1

Sodium Clorate -- what is best way to make this Weed Killer

gary350
Mar 17, 2015 · Replies 17 · Mar 27, 2015

Replies: 17

Properties of -COOR functional group?

kay
Mar 22, 2015 · Replies 4 · Mar 26, 2015

Replies: 4

Extracting CuCl2 from used PCB etchant.

physicscience
Mar 23, 2015 · Replies 4 · Mar 24, 2015

Replies: 4

Equilibrium Reactions: Not All Elementary?

IAmUnique
Mar 22, 2015 · Replies 4 · Mar 22, 2015

Replies: 4

How do sacrificial electrodes work?

iScience
Mar 18, 2015 · Replies 1 · Mar 22, 2015

Replies: 1

Suzuki Cross-Coupling work-up question

worryingchem
Mar 19, 2015 · Replies 1 · Mar 21, 2015

Replies: 1

Is there alcohol in apple cider vinegar

lesah
Mar 12, 2015 · Replies 13 · Mar 20, 2015

Replies: 13

How can standard enthelpy values be negative?

Conservation
Mar 19, 2015 · Replies 8 · Mar 19, 2015

Replies: 8

Epsom Salts browning when dehydrating - burning or normal?

R_Rose
Mar 18, 2015 · Replies 1 · Mar 19, 2015

Replies: 1

Hydroxide as a leaving group-Aldol

brake4country
Mar 18, 2015 · Replies 4 · Mar 19, 2015

Replies: 4

Chemists learn more about how life started on earth?

Greg Bernhardt
Mar 18, 2015 · Replies 2 · Mar 18, 2015

Replies: 2

Looking for rigorous General Chemistry textbook

Loststudent22
Mar 14, 2015 · Replies 4 · Mar 18, 2015

Replies: 4

How can we easily obtain 2-bromoacetophenone from bromobenzene?

Raghav Gupta
Mar 13, 2015 · Replies 16 · Mar 18, 2015

Replies: 16

Does CH3NH2 undergo resonance? Why?

kay
Mar 16, 2015 · Replies 5 · Mar 18, 2015

Replies: 5

Why is there a +R or -R effect?

kay
Mar 18, 2015 · Replies 1 · Mar 18, 2015

Replies: 1

Question about the periodic table arrangement

Signur
Mar 17, 2015 · Replies 10 · Mar 17, 2015

Replies: 10

How Can You Repair an MKS 1179A Mass Flow Controller?

Chris Haskin
Mar 11, 2015 · Replies 1 · Mar 17, 2015

Replies: 1

Calculating Kc for A+B-->C With B=0 at Equilibrium

supercalaf123
Mar 17, 2015 · Replies 1 · Mar 17, 2015

Replies: 1

Table needed. Chemists help please

Kiarash
Mar 15, 2015 · Replies 4 · Mar 15, 2015

Replies: 4

How many elements in a hand-full of sand ?

B0b-A
Mar 11, 2015 · Replies 10 · Mar 13, 2015

Replies: 10

What is the strongest endothermic reaction involving salt and liquid water?

Alistair1992
Mar 12, 2015 · Replies 5 · Mar 12, 2015

Replies: 5

Why Do Water Molecules Attract Each Other Despite Complete Electron Shells?

skyshrimp
Feb 3, 2015 · Replies 5 · Mar 12, 2015

Replies: 5

Learn How to Make a 10% Mineral Oil Emulsion Without Microfluidic Channels

phytoplankton
Mar 7, 2015 · Replies 6 · Mar 12, 2015

Replies: 6

Where to buy small amount of PI-2555

rassel
Mar 10, 2015 · Replies 2 · Mar 12, 2015

Replies: 2

Conflicting descriptions of Alka-Seltzer reaction?

david lewine
Mar 2, 2015 · Replies 6 · Mar 11, 2015

Replies: 6

Why is my solution precipitating after neutralization with NaOH and HCl?

Nix13
Mar 10, 2015 · Replies 3 · Mar 10, 2015

Replies: 3

Electrolysis of Water Using Field Effect

hobbs125
Jan 1, 2014 · Replies 7 · Mar 10, 2015

Replies: 7

Unleashing "Lucifer's Squid" experiement

Greg Bernhardt
Mar 5, 2015 · Replies 4 · Mar 10, 2015

Replies: 4

Which mass number is shown on the periodic table?

Jewish_Vulcan
Mar 9, 2015 · Replies 11 · Mar 9, 2015

Replies: 11

Inverse Solubility of Solid Solutes

Misha Kuznetsov
Mar 5, 2015 · Replies 3 · Mar 9, 2015

Replies: 3

Work in Enthalpy: Clear Your Confusion

Ibraheem
Mar 1, 2015 · Replies 10 · Mar 8, 2015

Replies: 10

Can Miralax and Thick-It be safely mixed for a dysphagia patient?

Dian Cecht
Mar 8, 2015 · Replies 1 · Mar 8, 2015

Replies: 1

Chloride Sulphate in "L S, B C L, S P A" ? Mnemonic?

Merlin3189
Mar 8, 2015 · Replies 1 · Mar 8, 2015

Replies: 1

Reversible and Irreversible Expansion

bubblewrap
Mar 8, 2015 · Replies 1 · Mar 8, 2015

Replies: 1

Chlorine gas, Nitrogen and Sodium Hydroxide

MartinMan
Mar 6, 2015 · Replies 2 · Mar 7, 2015

Replies: 2

Measuring Illuminance with Lux Meter - Can I Make Conclusions?

litis
Mar 5, 2015 · Replies 5 · Mar 6, 2015

Replies: 5

Can bacteria nitrify ammonia if it is bonded to a base?

nst.john
Mar 5, 2015 · Replies 3 · Mar 6, 2015

Replies: 3

Is a system always at equilibrium during phase changes?

reconrusty
Mar 5, 2015 · Replies 3 · Mar 5, 2015

Replies: 3

Projects using CANTERA software

vinu
Mar 4, 2015 · Replies 2 · Mar 5, 2015

Replies: 2

How good is HCN addition to aromatic conjugated aldehyde?

K.z_z
Mar 3, 2015 · Replies 1 · Mar 4, 2015

Replies: 1

Molasses to Remove Rust from 1920 Ford Model T Pistons

kokolyia
Mar 2, 2015 · Replies 5 · Mar 3, 2015

Replies: 5

Why do Electrons "want" 8 Electrons on the outter "shell"

nitsuj
Mar 3, 2015 · Replies 2 · Mar 3, 2015

Replies: 2

Chemical Potential: Pressure, Fugacity, & More

AndrewBworth
Mar 2, 2015 · Replies 2 · Mar 3, 2015

Replies: 2

Where do you buy your chemicals from?

thankz
Mar 2, 2015 · Replies 8 · Mar 2, 2015

Replies: 8

How does a catalyst affect equilibrium?

Callan Madden
Feb 26, 2015 · Replies 4 · Mar 2, 2015

Replies: 4

Am I reading this reaction right?

JeffEvarts
Mar 1, 2015 · Replies 8 · Mar 1, 2015

Replies: 8

The Smell of Garlic and Enzymatic Oxidation

dncosar
Feb 28, 2015 · Replies 4 · Mar 1, 2015

Replies: 4

Propagation of error: exponents

AndrewBworth
Feb 27, 2015 · Replies 4 · Mar 1, 2015

Replies: 4

What is the meaning of the term "Interlocking of crystals "?

Sampad Saha
Mar 1, 2015 · Replies 1 · Mar 1, 2015

Replies: 1

Amino acid side chain: amino group basic and hydroxyl not?

Watari
Feb 25, 2015 · Replies 1 · Feb 25, 2015

Replies: 1

How does the degree of dilution affect electrolyte dissociation?

Aafia
Feb 24, 2015 · Replies 5 · Feb 24, 2015

Replies: 5

Is the Synthesis of Sodium Dithionite Accurate?

asamaid1
Feb 23, 2015 · Replies 5 · Feb 24, 2015

Replies: 5

D2sp3 and sp3d2 Configurations of [Cr(NH3)6]3+ Ligand Complex

AdityaDev
Feb 22, 2015 · Replies 4 · Feb 23, 2015

Replies: 4

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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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