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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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Lewis Structure Problem, Atoms of more than 8 valence electrons?

Nov 9, 2004 · Replies 5 · Nov 20, 2004

Replies: 5

Views: 9K

A) Yes, this is the balanced equation for the reaction between Sn2+ and Tl3+.

Nov 18, 2004 · Replies 3 · Nov 19, 2004

Replies: 3

Views: 8K

Solving the Combustion of Octane

Nov 19, 2004 · Replies 1 · Nov 19, 2004

Replies: 1

Views: 4K

Side Chain Oxidation: Toluene to Benzoic Acid

Nov 17, 2004 · Replies 2 · Nov 18, 2004

Replies: 2

Views: 14K

Convert (r)-2-butonal to (s)-s-butonal

Nov 16, 2004 · Replies 1 · Nov 17, 2004

Replies: 1

Views: 2K

How to Determine the Empirical Formula of a Compound?

Nov 17, 2004 · Replies 1 · Nov 17, 2004

Replies: 1

Views: 3K

How to Determine the Percent Mass of a Mystery Alkali Carbonate in a Reaction?

Nov 15, 2004 · Replies 2 · Nov 16, 2004

Replies: 2

Views: 3K

What products will 2-methylbutan-2-ol give

Nov 15, 2004 · Replies 3 · Nov 16, 2004

Replies: 3

Views: 7K

Help with Isomer Identification Using NMR of Xylenes

Nov 15, 2004 · Replies 4 · Nov 16, 2004

Replies: 4

Views: 6K

Where can you find a list of strong oxidizing agents in the periodic table?

Nov 11, 2004 · Replies 3 · Nov 15, 2004

Replies: 3

Views: 27K

Metallic Bonding: Why Do Electrons Leave Atoms?

Nov 14, 2004 · Replies 3 · Nov 15, 2004

Replies: 3

Views: 3K

Question about humidity in milk

Nov 14, 2004 · Replies 4 · Nov 15, 2004

Replies: 4

Views: 2K

Reacting CO2 with CaO and Boric Oxide

Nov 11, 2004 · Replies 8 · Nov 15, 2004

Replies: 8

Views: 15K

Molecular Formula from Mass and Volume Calculations

Nov 14, 2004 · Replies 4 · Nov 15, 2004

Replies: 4

Views: 8K

Exothermic Reaction Origin: What is the Source?

Nov 13, 2004 · Replies 3 · Nov 14, 2004

Replies: 3

Views: 5K

What Is the Mystery of Base Rain and Why Don't We Hear About It?

Nov 13, 2004 · Replies 1 · Nov 13, 2004

Replies: 1

Views: 6K

Low composition of sodium in table salt?

Oct 10, 2004 · Replies 3 · Nov 13, 2004

Replies: 3

Views: 6K

Can Tobacco Substances Trigger Delayed Fear and Anxiety Responses?

Nov 12, 2004 · Replies 1 · Nov 12, 2004

Replies: 1

Views: 4K

Paint thinner, oil, and water in a jar

Nov 6, 2004 · Replies 4 · Nov 12, 2004

Replies: 4

Views: 4K

Question regarding redox process

Nov 9, 2004 · Replies 11 · Nov 12, 2004

Replies: 11

Views: 3K

Calculating Molecular Geometry Angles

Nov 11, 2004 · Replies 3 · Nov 11, 2004

Replies: 3

Views: 6K

Distinguishing between unknown organic compounds

Nov 9, 2004 · Replies 8 · Nov 11, 2004

Replies: 8

Views: 11K

What is the Conjugate Acid of H2PO4?

Nov 10, 2004 · Replies 1 · Nov 11, 2004

Replies: 1

Views: 68K

Which substance acted as a catalyst?

Nov 10, 2004 · Replies 2 · Nov 10, 2004

Replies: 2

Views: 6K

Net Ionic Eqn for NaOCl & Na2S2O3 Reaction: Calculate Enthalpy Change

Nov 7, 2004 · Replies 4 · Nov 9, 2004

Replies: 4

Views: 12K

Identify Element X: Wavelength, Valence Shell, and Quantum Numbers

Nov 8, 2004 · Replies 2 · Nov 9, 2004

Replies: 2

Views: 8K

How to Write Chemical Formulas Systematically?

Nov 5, 2004 · Replies 8 · Nov 9, 2004

Replies: 8

Views: 4K

Organic Chemistry Lab Questions: pKa of p-Chlorophenol

Nov 8, 2004 · Replies 7 · Nov 9, 2004

Replies: 7

Views: 10K

What is the structure of the polymer produced by this type of polymerization?

Nov 8, 2004 · Replies 5 · Nov 8, 2004

Replies: 5

Views: 3K

Incandescent Lamp: Red & Green Light Filter Color

Nov 6, 2004 · Replies 4 · Nov 8, 2004

Replies: 4

Views: 11K

What are the Possible Products in the Dichlorination of Cyclopentane?

Nov 3, 2004 · Replies 6 · Nov 7, 2004

Replies: 6

Views: 6K

Calculate Molarities of HCl & NaOH Solutions: Titration Ques

Nov 7, 2004 · Replies 1 · Nov 7, 2004

Replies: 1

Views: 5K

Spectroscope separates entering light into its component wavelengths?

Nov 6, 2004 · Replies 2 · Nov 6, 2004

Replies: 2

Views: 9K

Immediate source of the colored light produced by neon signs?

Nov 6, 2004 · Replies 2 · Nov 6, 2004

Replies: 2

Views: 16K

H+ Calculation for 0.220 M Aniline Solution with Kb = 7.4e-10

Nov 5, 2004 · Replies 5 · Nov 6, 2004

Replies: 5

Views: 10K

FXe2 Bond Angle: 104.5° or 90°?

Nov 1, 2004 · Replies 2 · Nov 5, 2004

Replies: 2

Views: 9K

Oxide Aluminum with Mercury:A Popsci Experiment

Oct 31, 2004 · Replies 4 · Nov 4, 2004

Replies: 4

Views: 12K

What is the oxidation state of Cr in Cr(CO)6

Nov 3, 2004 · Replies 5 · Nov 4, 2004

Replies: 5

Views: 9K

Organic Chemistry Lab: Isolating Caffeine from Tea Leafs

Nov 2, 2004 · Replies 1 · Nov 2, 2004

Replies: 1

Views: 5K

How Do You Calculate Effective Nuclear Charge for Elements in the S Orbital?

Nov 2, 2004 · Replies 2 · Nov 2, 2004

Replies: 2

Views: 9K

Redox reaction for sour solution

Nov 2, 2004 · Replies 1 · Nov 2, 2004

Replies: 1

Views: 2K

Reaction Quotient and Le Chatelier's Principle

Nov 2, 2004 · Replies 5 · Nov 2, 2004

Replies: 5

Views: 3K

Need help with retro synthetic analysis?

Oct 30, 2004 · Replies 8 · Nov 2, 2004

Replies: 8

Views: 10K

Comparing Polarizing Abilities of Molecules

Nov 1, 2004 · Replies 4 · Nov 2, 2004

Replies: 4

Views: 17K

General quantities in chemical reactions questions

Nov 1, 2004 · Replies 2 · Nov 1, 2004

Replies: 2

Views: 4K

How do the OH groups in sucrose and glycerin aid in their solubility in water?

Oct 31, 2004 · Replies 5 · Nov 1, 2004

Replies: 5

Views: 10K

What is the weight percent of NH3 in the window cleaner?

Oct 31, 2004 · Replies 2 · Nov 1, 2004

Replies: 2

Views: 5K

Which Substituted Phenol Is Most Acidic?

Oct 30, 2004 · Replies 10 · Nov 1, 2004

Replies: 10

Views: 50K

Does temperature affect mass in chemistry

Oct 31, 2004 · Replies 4 · Oct 31, 2004

Replies: 4

Views: 12K

Mass of a hydrate before and after the hydrate was evaporated away

Oct 28, 2004 · Replies 10 · Oct 31, 2004

Replies: 10

Views: 5K

Calculate % Yield: Pb(NO3)2 + LiBr -> PbBr2

Oct 30, 2004 · Replies 9 · Oct 31, 2004

Replies: 9

Views: 3K

Chemical Reactions: Understanding Substances and Reaction Rates

Oct 31, 2004 · Replies 2 · Oct 31, 2004

Replies: 2

Views: 2K

Solving Mass Loss: Beginner Chem Student Struggling

Oct 30, 2004 · Replies 5 · Oct 31, 2004

Replies: 5

Views: 3K

Calculate the molarity, M, of the NaOH

Oct 30, 2004 · Replies 3 · Oct 30, 2004

Replies: 3

Views: 2K

Polar or Nonpolar: CO3(2-) Carbonate Ion Help

Oct 30, 2004 · Replies 2 · Oct 30, 2004

Replies: 2

Views: 106K

Analytical methods of calcium in milk

Jul 4, 2004 · Replies 9 · Oct 29, 2004

Replies: 9

Views: 19K

Advice about preparing xanthates

Oct 16, 2004 · Replies 8 · Oct 29, 2004

Replies: 8

Views: 3K

WHy OXygen can react with metal?

Oct 29, 2004 · Replies 2 · Oct 29, 2004

Replies: 2

Views: 6K

Is 1-Bromo-But-2-ene the Major Product in But-2-en-1-ol Reaction with HBr?

Oct 27, 2004 · Replies 9 · Oct 29, 2004

Replies: 9

Views: 4K

Infrared spectroscopy of a cyclic alkene

Oct 27, 2004 · Replies 5 · Oct 28, 2004

Replies: 5

Views: 16K

Why does oxidization occur in certain substances?

Oct 28, 2004 · Replies 4 · Oct 28, 2004

Replies: 4

Views: 3K

What is the Enthalpy and Internal Energy Change for a Thermochemical Reaction?

Oct 26, 2004 · Replies 7 · Oct 27, 2004

Replies: 7

Views: 10K

I just started Chemistry please

Oct 23, 2004 · Replies 7 · Oct 27, 2004

Replies: 7

Views: 2K

AC Electrical heating - Clay sediments

Oct 26, 2004 · Replies 3 · Oct 27, 2004

Replies: 3

Views: 2K

What is the Kinetic Energy of H-Atom in HBr Photodissociation?

Oct 27, 2004 · Replies 2 · Oct 27, 2004

Replies: 2

Views: 2K

I hate chemistry Hate it Hate it Hate it

Oct 21, 2004 · Replies 48 · Oct 26, 2004

2

Replies: 48

Views: 31K

What are the concentrations of NO2 and N2O4 in an equilibrium reaction?

Oct 26, 2004 · Replies 2 · Oct 26, 2004

Replies: 2

Views: 2K

Acid vs Conjugate Acid: Understanding the Key Differences

Oct 26, 2004 · Replies 1 · Oct 26, 2004

Replies: 1

Views: 3K

Understanding the MO Energy Level Diagram for H3+ Cyclic Structure

Oct 25, 2004 · Replies 2 · Oct 26, 2004

Replies: 2

Views: 4K

Molisch & Fehling Tests: Comparing Results

Oct 26, 2004 · Replies 1 · Oct 26, 2004

Replies: 1

Views: 3K

A couple of questions of acetic acid

Oct 24, 2004 · Replies 3 · Oct 25, 2004

Replies: 3

Views: 4K

Help need titration curve for Arginine

Oct 23, 2004 · Replies 2 · Oct 24, 2004

Replies: 2

Views: 10K

Which Statements about the P Orbitals of Butadiene are True?

Oct 23, 2004 · Replies 14 · Oct 24, 2004

Replies: 14

Views: 6K

Calculating Heat of Reaction: AgNO3 + HCL = AgCl + HNO3 | kcal/mole Formula

Oct 23, 2004 · Replies 5 · Oct 24, 2004

Replies: 5

Views: 12K

Calculate the molar mass of the metal

Oct 23, 2004 · Replies 16 · Oct 24, 2004

Replies: 16

Views: 6K

Is it safe to drink lab ethanol?

Oct 22, 2004 · Replies 12 · Oct 24, 2004

Replies: 12

Views: 185K

Oxidation using selenium dioxide

Oct 22, 2004 · Replies 5 · Oct 24, 2004

Replies: 5

Views: 22K

Extracting Gold from Seawater: Is It Possible?

Oct 23, 2004 · Replies 4 · Oct 24, 2004

Replies: 4

Views: 6K

How Does Excess HCl Affect pH in Methyl Ammonia Titration?

Oct 22, 2004 · Replies 3 · Oct 24, 2004

Replies: 3

Views: 4K

Calculate the heat capacity of this calorimeter

Oct 23, 2004 · Replies 1 · Oct 23, 2004

Replies: 1

Views: 6K

Physical Chemistry: Partial Molar Volumes NaCl Solutions

Oct 23, 2004 · Replies 1 · Oct 23, 2004

Replies: 1

Views: 3K

First carboxylic acid is more acidic than the second

Oct 20, 2004 · Replies 8 · Oct 22, 2004

Replies: 8

Views: 8K

I have trouble understanding the concept of resonance

Oct 18, 2004 · Replies 6 · Oct 22, 2004

Replies: 6

Views: 8K

What would be the ideal chemistry program?

Oct 21, 2004 · Replies 1 · Oct 22, 2004

Replies: 1

Views: 2K

Understanding the free-radical chain reactions

Oct 19, 2004 · Replies 6 · Oct 22, 2004

Replies: 6

Views: 3K

Aphrodisiac normally consists of what chemicals?

Oct 21, 2004 · Replies 3 · Oct 21, 2004

Replies: 3

Views: 2K

Instances to produce heat by burning

Oct 20, 2004 · Replies 2 · Oct 21, 2004

Replies: 2

Views: 2K

EDTA titration-(Analytical Chem.)

Oct 17, 2004 · Replies 6 · Oct 21, 2004

Replies: 6

Views: 15K

A question for Graduate students and higher

Oct 15, 2004 · Replies 7 · Oct 21, 2004

Replies: 7

Views: 3K

Inking Disc Golf Discs: What to Use & How to Apply

Oct 16, 2004 · Replies 7 · Oct 20, 2004

Replies: 7

Views: 9K

Far Infra Rays: Questions & Answers

Oct 20, 2004 · Replies 3 · Oct 20, 2004

Replies: 3

Views: 3K

What Is the Structure and Stability of the S4N4 Compound?

Oct 18, 2004 · Replies 1 · Oct 19, 2004

Replies: 1

Views: 9K

Equality Reaction: Questions & Answers - Fred

Oct 18, 2004 · Replies 2 · Oct 19, 2004

Replies: 2

Views: 2K

Calculating Formula Weights for Common Chemical Compounds

Oct 18, 2004 · Replies 2 · Oct 19, 2004

Replies: 2

Views: 2K

Cyclic Voltammetry: Meaning & Lab Results

Oct 18, 2004 · Replies 3 · Oct 19, 2004

Replies: 3

Views: 13K

Is Rhodium Likely to Have Positive Ion States with Noble-Gas Configuration?

Oct 18, 2004 · Replies 2 · Oct 18, 2004

Replies: 2

Views: 2K

What do you make of this mechanism?

Oct 17, 2004 · Replies 1 · Oct 18, 2004

Replies: 1

Views: 2K

Chemistry Help: Neutralizing HCl & H3PO4 Solutions

Oct 13, 2004 · Replies 5 · Oct 18, 2004

Replies: 5

Views: 7K

Hydrogen and Oxygen: Questions & Answers

Oct 13, 2004 · Replies 8 · Oct 18, 2004

Replies: 8

Views: 4K

Calculating PPM Iron: Iron Titration

Oct 13, 2004 · Replies 5 · Oct 17, 2004

Replies: 5

Views: 10K

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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