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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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Make Spray Wax with Paraffin & Aerosol Can

Jan 26, 2016 · Replies 3 · Feb 8, 2016

Replies: 3

Views: 2K

Why Don't Intermolecular Forces Play a Significant Role in CO2 Molecules?

Feb 3, 2016 · Replies 16 · Feb 7, 2016

Replies: 16

Views: 8K

Type of Reaction: Ethene + Steam --> Ethanol

Feb 7, 2016 · Replies 4 · Feb 7, 2016

Replies: 4

Views: 2K

Sodium Bicarbonate Thermal Decomposition

Jan 31, 2016 · Replies 21 · Feb 6, 2016

Replies: 21

Views: 9K

Problem measuring PH (it oscilates) for gastric juice

Feb 3, 2016 · Replies 5 · Feb 6, 2016

Replies: 5

Views: 2K

New solution found for Gold extraction

Feb 6, 2016 · Replies 3 · Feb 6, 2016

Replies: 3

Views: 2K

Al(OH)3 as an electrolyte. What does it produce?

Feb 6, 2016 · Replies 5 · Feb 6, 2016

Replies: 5

Views: 4K

What is the difference between valence and conduction bands in metals?

Feb 5, 2016 · Replies 3 · Feb 5, 2016

Replies: 3

Views: 2K

Can Sodium Ions in the Brain Be Excited with Electromagnetic Radiation?

Feb 4, 2016 · Replies 3 · Feb 5, 2016

Replies: 3

Views: 1K

Why can't all metal oxides be reduced by a redox

Feb 4, 2016 · Replies 1 · Feb 4, 2016

Replies: 1

Views: 2K

Why Doesn't Nitric Acid React with Copper Oxide?

Feb 4, 2016 · Replies 2 · Feb 4, 2016

Replies: 2

Views: 3K

Calculate Neutralizing Value: 3 Parts K2CO3

Feb 4, 2016 · Replies 1 · Feb 4, 2016

Replies: 1

Views: 2K

Oxidation number of carbon in (NH4)2C2O4

Feb 3, 2016 · Replies 5 · Feb 4, 2016

Replies: 5

Views: 6K

What Happens to an Electron When it is Excited and Removed from an Atom?

Feb 2, 2016 · Replies 11 · Feb 3, 2016

Replies: 11

Views: 3K

What is the Standard Enthalpy of Water?

Feb 1, 2016 · Replies 16 · Feb 3, 2016

Replies: 16

Views: 10K

Nontoxic, high transmittance, high density fluid

Feb 2, 2016 · Replies 2 · Feb 2, 2016

Replies: 2

Views: 2K

Is Alchemy Allowed in Scientific Forums?

Feb 1, 2016 · Replies 2 · Feb 1, 2016

Replies: 2

Views: 2K

Producing Methane from Sugar - PF Forum

Feb 1, 2016 · Replies 2 · Feb 1, 2016

Replies: 2

Views: 2K

TiO2 Dispersion in Water: Challenges and Solutions

Jan 29, 2016 · Replies 3 · Feb 1, 2016

Replies: 3

Views: 4K

How Does Energy Affect the Excitation of Electrons in Multi-Electron Atoms?

Jan 31, 2016 · Replies 7 · Feb 1, 2016

Replies: 7

Views: 2K

Making Rock Candy: Troubleshooting Sugar Crystallization

Jan 27, 2016 · Replies 8 · Feb 1, 2016

Replies: 8

Views: 6K

Affordable Iridium Plating Solution for DIY Projects or Professional Services

Jan 31, 2016 · Replies 1 · Jan 31, 2016

Replies: 1

Views: 2K

Speed of electromagnetic radiation

Jan 31, 2016 · Replies 2 · Jan 31, 2016

Replies: 2

Views: 2K

What does cold hydrogen gas emit at 1420 MHz?

Jan 30, 2016 · Replies 16 · Jan 31, 2016

Replies: 16

Views: 3K

Elemental iron in ferrous sulfate

Jan 31, 2016 · Replies 4 · Jan 31, 2016

Replies: 4

Views: 2K

Spectrochemical series explanation

Oct 31, 2013 · Replies 2 · Jan 30, 2016

Replies: 2

Views: 4K

Delocalisation of Charge Explained for Resonance Effect

Jan 27, 2016 · Replies 3 · Jan 27, 2016

Replies: 3

Views: 2K

How does the Pauli Exclusion principle explain ionization E?

Jan 27, 2016 · Replies 2 · Jan 27, 2016

Replies: 2

Views: 2K

Looking for a specific material

Jan 26, 2016 · Replies 2 · Jan 27, 2016

Replies: 2

Views: 2K

Design of experimental device for sugar monocrystallisation

Jan 26, 2016 · Replies 1 · Jan 26, 2016

Replies: 1

Views: 2K

Precisely define valence please

Jan 22, 2016 · Replies 3 · Jan 25, 2016

Replies: 3

Views: 2K

How to Calculate CO2 Saturation Levels in Saline Water?

Jan 25, 2016 · Replies 1 · Jan 25, 2016

Replies: 1

Views: 1K

Is there always a liquid surface between a solid and gas?

Jan 24, 2016 · Replies 3 · Jan 24, 2016

Replies: 3

Views: 2K

Producing Methane from Composting: Benefits & Process

Jan 23, 2016 · Replies 6 · Jan 23, 2016

Replies: 6

Views: 2K

Three biggest factors to determine if atoms will bond

Jan 22, 2016 · Replies 3 · Jan 23, 2016

Replies: 3

Views: 2K

Since saturated solutions are equilibriums....

Jan 21, 2016 · Replies 2 · Jan 21, 2016

Replies: 2

Views: 2K

What do you call elements below metalloids?

Jan 21, 2016 · Replies 2 · Jan 21, 2016

Replies: 2

Views: 1K

Thistle tube height when setting up gas generator

Jan 21, 2016 · Replies 2 · Jan 21, 2016

Replies: 2

Views: 2K

Question about tenting in H NMR

Jan 20, 2016 · Replies 1 · Jan 21, 2016

Replies: 1

Views: 3K

What is the Setup Called that Collects Water from the Cu Reduction Process?

Jan 19, 2016 · Replies 9 · Jan 21, 2016

Replies: 9

Views: 2K

Molar conductivity and conductivity of an electrolyte

Jan 21, 2016 · Replies 1 · Jan 21, 2016

Replies: 1

Views: 1K

How much methane is produced from 1 kg of typical organic waste?

Jan 20, 2016 · Replies 2 · Jan 20, 2016

Replies: 2

Views: 2K

Acid/Base Question on acidity of salts

Jan 19, 2016 · Replies 2 · Jan 20, 2016

Replies: 2

Views: 4K

Chemical PCP found in older Electrical Transformers

Jan 18, 2016 · Replies 3 · Jan 19, 2016

Replies: 3

Views: 9K

Method for bubbling gas into a liquid at a specific rate?

Jan 18, 2016 · Replies 3 · Jan 19, 2016

Replies: 3

Views: 2K

Uncovering the Mystery of Oxygen's Hybridization in H2O

Jan 12, 2016 · Replies 15 · Jan 19, 2016

Replies: 15

Views: 11K

2 ways to calculate net standard reduction potential

Jan 17, 2016 · Replies 4 · Jan 18, 2016

Replies: 4

Views: 2K

Percentage of hydrocarbons in living organism

Jan 18, 2016 · Replies 6 · Jan 18, 2016

Replies: 6

Views: 4K

This question regarding quantum number

Jan 16, 2016 · Replies 10 · Jan 18, 2016

Replies: 10

Views: 3K

Calculating Ksp vs Keq: Are There Differences?

Jan 17, 2016 · Replies 2 · Jan 17, 2016

Replies: 2

Views: 8K

Understanding Hybridization in Chemistry: Fact or Fiction?

Jan 11, 2016 · Replies 3 · Jan 15, 2016

Replies: 3

Views: 2K

Safety of a Small Scale Electrolysis Experiment

Jan 15, 2016 · Replies 2 · Jan 15, 2016

Replies: 2

Views: 2K

Calculate dilution to create new specific gravity

Jan 14, 2016 · Replies 2 · Jan 15, 2016

Replies: 2

Views: 4K

Why wouldn't half-reactions in a battery just go on?

Jan 12, 2016 · Replies 3 · Jan 14, 2016

Replies: 3

Views: 2K

Electrochemistry question: n value in ΔG° =-nFE°cell

Jan 13, 2016 · Replies 1 · Jan 14, 2016

Replies: 1

Views: 8K

Can Entropy Decrease in Endothermic Reactions?

Jan 13, 2016 · Replies 2 · Jan 14, 2016

Replies: 2

Views: 2K

Advanced iron oxide production questions

Jan 12, 2016 · Replies 4 · Jan 13, 2016

Replies: 4

Views: 2K

Spectrophotometry of chromate-dichromate equilibrium

Jan 11, 2016 · Replies 3 · Jan 13, 2016

Replies: 3

Views: 3K

Where Can I Find Molar Absorptivity Data for Chromate and Dichromate Ions?

Jan 12, 2016 · Replies 5 · Jan 13, 2016

Replies: 5

Views: 3K

More moles of gas per moles of material reaction

Jan 12, 2016 · Replies 3 · Jan 12, 2016

Replies: 3

Views: 2K

What is Nascent Oxygen?

Feb 4, 2015 · Replies 14 · Jan 12, 2016

Replies: 14

Views: 18K

What are the dangers and ways to control danger of chromate

Jan 11, 2016 · Replies 5 · Jan 11, 2016

Replies: 5

Views: 3K

Effects of Crushing a Solid on Equilibrium Position

Jan 10, 2016 · Replies 9 · Jan 11, 2016

Replies: 9

Views: 3K

How does a mist spray bottle affect scent molecules?

Jan 7, 2016 · Replies 3 · Jan 10, 2016

Replies: 3

Views: 2K

Needing help identifying a salt.

Jan 10, 2016 · Replies 1 · Jan 10, 2016

Replies: 1

Views: 2K

What Are the Key Differences Between Antioxidants and Reducing Agents?

Jan 9, 2016 · Replies 1 · Jan 9, 2016

Replies: 1

Views: 7K

Contradiction of Gibbs adsoprtion?

Jan 8, 2016 · Replies 2 · Jan 9, 2016

Replies: 2

Views: 2K

Nitrogen Bond Formation: 2 Electrons in 2p Orbital

Jan 5, 2016 · Replies 7 · Jan 9, 2016

Replies: 7

Views: 2K

Transmittance of Cyclohexane for IR Radiation Through Quartz Viewport

Jan 7, 2016 · Replies 5 · Jan 8, 2016

Replies: 5

Views: 2K

Understanding ORP in Water with NaCl

Jan 7, 2016 · Replies 1 · Jan 7, 2016

Replies: 1

Views: 3K

Understand Chemistry Bond Symbol for Antioxidants and Free Radicals

Jan 6, 2016 · Replies 7 · Jan 7, 2016

Replies: 7

Views: 4K

How can phase transitions be physical equilibriums?

Dec 16, 2015 · Replies 21 · Jan 6, 2016

Replies: 21

Views: 3K

Can Schrodinger's Equation predict steric clashes

Jan 6, 2016 · Replies 2 · Jan 6, 2016

Replies: 2

Views: 2K

7th period of the periodic table now complete

Jan 4, 2016 · Replies 12 · Jan 6, 2016

Replies: 12

Views: 3K

Do zwitterions respond to electric fields?

Jan 6, 2016 · Replies 1 · Jan 6, 2016

Replies: 1

Views: 2K

Electron shell, Oxidation number

Jan 6, 2016 · Replies 1 · Jan 6, 2016

Replies: 1

Views: 2K

Naturally occurring elements yet to be discovered?

Jan 5, 2016 · Replies 3 · Jan 5, 2016

Replies: 3

Views: 2K

Heat: Microscope - Seeing Matter React

Dec 30, 2015 · Replies 3 · Jan 5, 2016

Replies: 3

Views: 2K

What Can You Do with Wolfram Alpha in Chemistry?

Jan 5, 2016 · Replies 1 · Jan 5, 2016

Replies: 1

Views: 2K

Can Reverse Polarity Charging Convert Old Lead Acid Batteries into Pure Pb?

Jan 1, 2016 · Replies 4 · Jan 3, 2016

Replies: 4

Views: 2K

Understanding pH - FAQs for the PF Forum

Jan 2, 2016 · Replies 6 · Jan 2, 2016

Replies: 6

Views: 2K

What Are the Health Implications of Hydroxide Radicals in Alkaline Water?

Jan 1, 2016 · Replies 3 · Jan 2, 2016

Replies: 3

Views: 2K

V required for electroplating Cu on Fe

Dec 28, 2015 · Replies 3 · Jan 1, 2016

Replies: 3

Views: 1K

Is Hydrogen Ion a Powerful Antioxidant?

Jan 1, 2016 · Replies 4 · Jan 1, 2016

Replies: 4

Views: 2K

How Is Activation Energy Determined for Urea Hydrolysis with Urease?

Jan 1, 2016 · Replies 1 · Jan 1, 2016

Replies: 1

Views: 2K

Gel pen refill ink is what ester?

Dec 30, 2015 · Replies 5 · Dec 31, 2015

Replies: 5

Views: 2K

Whether to clear carbon gasoline additive do?

Dec 30, 2015 · Replies 3 · Dec 31, 2015

Replies: 3

Views: 2K

Is Methylene Chloride dangerous?

Dec 25, 2015 · Replies 8 · Dec 31, 2015

Replies: 8

Views: 3K

Why does alanine salt have a pH of 6.113?

Dec 29, 2015 · Replies 10 · Dec 30, 2015

Replies: 10

Views: 3K

Calculating and Mixing NiAc and ZnAc Solutions for Molar Proportion

Dec 29, 2015 · Replies 5 · Dec 30, 2015

Replies: 5

Views: 2K

Controlling pH of solution without changing its conductivity

Dec 24, 2015 · Replies 3 · Dec 30, 2015

Replies: 3

Views: 4K

Science Fair Project: Natural Water vs Bottled

Dec 29, 2015 · Replies 1 · Dec 29, 2015

Replies: 1

Views: 2K

Should Natural Cosmetics Professionals Study Chemistry or Organic Chemistry?

Dec 29, 2015 · Replies 2 · Dec 29, 2015

Replies: 2

Views: 2K

Electronegativity and electron affinity?

Dec 29, 2015 · Replies 1 · Dec 29, 2015

Replies: 1

Views: 1K

How is enthelpy different than heat?

Dec 26, 2015 · Replies 2 · Dec 27, 2015

Replies: 2

Views: 3K

Does a Modern Car Exhaust System Impact a Carbon Monoxide Detector's Accuracy?

Dec 21, 2015 · Replies 12 · Dec 26, 2015

Replies: 12

Views: 3K

How is PbBr2 an ionic compound?

Dec 23, 2015 · Replies 2 · Dec 23, 2015

Replies: 2

Views: 7K

Is Diphenol Aromatic or Anti-Aromatic?

Dec 22, 2015 · Replies 1 · Dec 22, 2015

Replies: 1

Views: 1K

Exothermic reaction of zeolite and water

Dec 22, 2015 · Replies 3 · Dec 22, 2015

Replies: 3

Views: 7K

Reboiling Water: Harmful Effects and Chemical Changes

Dec 13, 2015 · Replies 4 · Dec 22, 2015

Replies: 4

Views: 3K

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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