The Changing States of Solids, Liquids, and Gases
When a substance goes from one state of matter solid, liquid, or gas to another state of matter, the process is a change of state. Some rather interesting things occur during this process. [more]
Chemistry is a branch of science that studies the composition and properties of matter and the changes it undergoes. Chemistry is far more than a collection of facts and a body of knowledge. Its all about [more]
Most chemists operate in two worlds of work. One is the macroscopic world that you see, feel, and touch. Chemists also operate in the microscopic world that you cant directly see, feel, or touch. [more]
Chemists can classify matter as solid, liquid, or gas. But there are other ways to classify matter, as well such as pure substances and mixtures. Classification is one of the basic processes in science [more]
Scientists are often called on to make measurements of matter, which may include such things as mass (weight), volume, and temperature. A worldwide measurement system has been adopted to ensure that scientists [more]
When chemists study chemical substances, they examine two types of properties: chemical properties and physical properties. Some physical properties are [more]
Energy can take several forms such as heat energy, light energy, electrical energy, and mechanical energy. But two general types of energy are especially important to chemists: kinetic energy and potential [more]
You can measure kinetic energy (energy of motion) with a thermometer. Measuring potential (stored) energy can be a difficult task. The potential energy of a ball stuck up in a tree is related to the mass [more]
The nucleus, that dense central core of the atom, contains both protons and neutrons. Electrons are outside the nucleus in energy levels. Protons have a positive charge, neutrons have no charge, and electrons [more]
There are two models of atomic structure in use today: the Bohr model and the quantum mechanical model. Of these two models, the Bohr model is simpler and relatively easy to understand. [more]
Two models of atomic structure are in use today: the Bohr model and the quantum mechanical model. The quantum mechanical model is based on mathematics. Although it is more difficult to understand than [more]
Chemists sometimes use an energy level diagram to represent electrons when theyre looking at chemical reactions and bonding. An energy level diagram is more useful and easier to work with than quantum [more]
Chemists use electron configuration notation to depict electrons in chemical reactions and bonding. Electron configuration notation is easier to use than the quantum mechanical model. [more]
Valence electrons are the electrons in the outermost energy level of an atom in the energy level that is farthest away from the nucleus. When chemists study chemical reactions, they study the transfer [more]
Atoms in a chemical element that have different numbers of neutrons than protons and electrons are called isotopes. The atoms in a particular element have an identical number of protons and electrons but [more]
Atoms (or groups of atoms) in which there are unequal numbers of protons and electrons are called ions. Usually, the number of protons and electrons in atoms are equal. But there are cases in which an [more]
In the periodic table of elements, there are seven horizontal rows of elements called periods. The vertical columns of elements are called groups, or families [more]
Radioactivity is the spontaneous decay of an unstable nucleus. An unstable nucleus may break apart into two or more other particles with the release of some energy. This breaking apart can occur in a number [more]
Certain naturally occurring radioactive isotopes are unstable: Their nucleus breaks apart, undergoing nuclear decay. Sometimes the product of that nuclear decay is unstable itself and undergoes nuclear [more]
Scientists look at half-life decay rates of radioactive isotopes to estimate when a particular atom might decay. A useful application of half-lives is [more]
Nuclear fission occurs when a larger isotope breaks apart into two or more elements. Scientists usually accomplish this task (for some controlled nuclear reactions) by bombarding a large isotope with a [more]
Nuclear fusion is essentially the opposite of nuclear fission. In fission, a heavy nucleus is split into smaller nuclei. With fusion, lighter nuclei are fused into a heavier nucleus. [more]
Radiation can destroy tissue and ionize and fragment cells. Radon is a radioactive isotope that has been linked to increased instances of lung cancer. Radon-222 is formed naturally as part of the decay [more]
Ionic bonding is the type of bonding that holds salts together. To better understand why and how ions atoms that have a charge due to the loss or gain of electrons are formed, you can study what happens [more]
Cations (positively-charged ions) and anions(negatively-charged ions) are formed when a metal loses electrons, and a nonmetal gains those electrons. The electrostatic attraction between the positives and [more]
Read this article:
Chemistry - For Dummies
- VeruTEK Reports Very High Increases In Heavy Oil Production Using ProBoost Enhanced Oil Recovery Chemistry - January 15th, 2013 [January 15th, 2013]
- Broncos looking to find proper balance of talent and chemistry - January 22nd, 2013 [January 22nd, 2013]
- Chemistry Movie Trailer - Video - January 22nd, 2013 [January 22nd, 2013]
- Research and Markets: Austria In Vitro Diagnostics Market Outlook to 2018 - Clinical Chemistry Genetic Testing ... - February 1st, 2013 [February 1st, 2013]
- Ayrshire news: Student lands top chemistry award - February 1st, 2013 [February 1st, 2013]
- JoVE expands scientific video publication into chemistry - February 5th, 2013 [February 5th, 2013]
- Stability of transition metal alkyls - Video - January 8th, 2014 [January 8th, 2014]
- Chemistry Surface Chemistry part 3 (Adsorption Examples) CBSE class 12 XII - Video - January 15th, 2014 [January 15th, 2014]
- 3 BASIC CONCEPT OF CHEMISTRY - Video - January 16th, 2014 [January 16th, 2014]
- 5 Minute Lesson: CHEMISTRY #3: Electron Configuration - Video - January 17th, 2014 [January 17th, 2014]
- MUSHROOM CLOUD - MALAYALAM - Fun with chemistry! - Video - January 19th, 2014 [January 19th, 2014]
- "Arrow's" Stephen Amell Talks Oliver and Felicity's Chemistry - Video - January 23rd, 2014 [January 23rd, 2014]
- Eq 6.1: Le Chatelier's Principle - Introduction - Video - January 28th, 2014 [January 28th, 2014]
- Conservation of Mass 020 - Video - February 2nd, 2014 [February 2nd, 2014]
- 2423 PE01ASA 024C - Balancing Combustion Reactions 013 - Video - February 2nd, 2014 [February 2nd, 2014]
- Isobutane vs. Butane : Chemistry Lessons - Video - February 2nd, 2014 [February 2nd, 2014]
- How Being Present Can Improve Your Child's Brain Chemistry - Video - February 6th, 2014 [February 6th, 2014]
- Science interesting experiment Chemistry experiment 00004 - Video - February 9th, 2014 [February 9th, 2014]
- Music Box Inspires Portable $5 Chemistry Lab - April 10th, 2014 [April 10th, 2014]
- A Clever New Chemistry Kit Your Kid Will Actually Want to Use - April 10th, 2014 [April 10th, 2014]
- Stanford Scientist Creates $5 Chemistry Set Inspired By Music Box - April 10th, 2014 [April 10th, 2014]
- Chemistry - Wikipedia, the free encyclopedia - April 10th, 2014 [April 10th, 2014]
- Chemistry.com | An Online Dating Site for Singles - April 10th, 2014 [April 10th, 2014]
- thermo - Video - April 10th, 2014 [April 10th, 2014]
- Sexy Chemistry of Siddharth and Shraddha in Villain! - Video - April 10th, 2014 [April 10th, 2014]
- lecture 29-part 5- Analytical Chemistry and Chromatography for Graduate Students - Prof Peter Carr - Video - April 10th, 2014 [April 10th, 2014]
- lecture 29-part 4- Analytical Chemistry and Chromatography for Graduate Students - Prof Peter Carr - Video - April 10th, 2014 [April 10th, 2014]
- c i - Video - April 10th, 2014 [April 10th, 2014]
- Jee-Main (AIEEE) 2014 - Chemistry- Q22 - Video - April 10th, 2014 [April 10th, 2014]
- Moles calculations examples - IGCSE Chemistry - Video - April 10th, 2014 [April 10th, 2014]
- Form 2 chemistry calculation with MOLES - IGCSE Chemistry - Video - April 10th, 2014 [April 10th, 2014]
- Physical Chemistry Lab: Parallel First Order Reactions - Video - April 10th, 2014 [April 10th, 2014]
- UNedited Chemistry Project By The Dream Team - Video - April 10th, 2014 [April 10th, 2014]
- we - Video - April 10th, 2014 [April 10th, 2014]
- Teacher of Chemistry - April 15th, 2014 [April 15th, 2014]
- Head of Chemistry - April 15th, 2014 [April 15th, 2014]
- About.com Chemistry - Chemistry Projects, Homework Help ... - April 15th, 2014 [April 15th, 2014]
- PARKnSHOP 'Chemistry Class' Mrs Wong's Academy - Video - April 15th, 2014 [April 15th, 2014]
- AP chemistry kinetics lab green food coloring/bleach - Video - April 15th, 2014 [April 15th, 2014]
- The Chemistry of Flubber - Video - April 15th, 2014 [April 15th, 2014]
- Chemistry Cooking Video - Video - April 15th, 2014 [April 15th, 2014]
- Chemistry Intro Animation Videos HD 2014 - Video - April 15th, 2014 [April 15th, 2014]
- Chemistry Today: An Out of Class Chemistry Project - Video - April 15th, 2014 [April 15th, 2014]
- Chemistry - Naming Ionic Compounds - Video - April 15th, 2014 [April 15th, 2014]
- Chemistry - Stoichiometry - Video - April 15th, 2014 [April 15th, 2014]
- Chemistry - Hybridization - Video - April 15th, 2014 [April 15th, 2014]
- Arjun Kapoors speaks about his chemistry with Alia Bhatt in 2 states - Video - April 15th, 2014 [April 15th, 2014]
- Chemistry Official Promo - Video - April 15th, 2014 [April 15th, 2014]
- Leah4Sci's Awesome Free Online Organic Chemistry I and II Workshops! - Video - April 15th, 2014 [April 15th, 2014]
- org - Video - April 15th, 2014 [April 15th, 2014]
- What is the Difference between Process Free and Chemistry Free Plates? - Video - April 15th, 2014 [April 15th, 2014]
- Stanford bioengineer creates $5 chemistry set - Video - April 15th, 2014 [April 15th, 2014]
- Reduction of Ketones and Aldehdyes Made Easy! - Organic Chemistry - Video - April 15th, 2014 [April 15th, 2014]
- Catch Salman and Daisy's sizzling chemistry in the superhit Jai Ho! - Video - April 15th, 2014 [April 15th, 2014]
- Chemistry Lab Technician - April 15th, 2014 [April 15th, 2014]
- Science teacher Imogen Herrick wins ExCel Award at Academy @ Shawnee - April 15th, 2014 [April 15th, 2014]
- equlibrium - Video - April 15th, 2014 [April 15th, 2014]
- Veazie police officer lauded for saving UMaine students life - April 16th, 2014 [April 16th, 2014]
- IGCSE Chemistry - Video - April 16th, 2014 [April 16th, 2014]
- Chemistry - Chemical Kinetics (11 of 30) Finding the Order - Using Initial Rates - Video - April 16th, 2014 [April 16th, 2014]
- CHEMISTRY TUTORIAL:Colligative Properties and Van't Hoff - Video - April 16th, 2014 [April 16th, 2014]
- Quantum Chemistry - Schrodinger Eq / Particle in a Box Review - Video - April 16th, 2014 [April 16th, 2014]
- Science Nation - Solar Fuels: A grand challenge of 21st century chemistry - Video - April 17th, 2014 [April 17th, 2014]
- Making Sense: A' Level Chemistry Made Easy! (Extended) - Video - April 17th, 2014 [April 17th, 2014]
- Making Sense: A' Level Chemistry Made Easy - Video - April 17th, 2014 [April 17th, 2014]
- Artificial Chemistry - Video - April 17th, 2014 [April 17th, 2014]
- "Materials of the Future"- Chemistry of Materials Video Contest - Video - April 17th, 2014 [April 17th, 2014]
- "We can do something about [global warming]." Nobel Laureate Mario Molina (1995 Chemistry) - Video - April 17th, 2014 [April 17th, 2014]
- Chemistry - Chemical Kinetics (1 of 30) Definition - Video - April 17th, 2014 [April 17th, 2014]
- Chemistry: A Molecular Approach at eCampus.com - Video - April 18th, 2014 [April 18th, 2014]
- Chemistry - Reaction Prediction and Precipitate Solubility - Video - April 18th, 2014 [April 18th, 2014]
- Brady Hoke: Michigan has shown great chemistry during offseason - April 19th, 2014 [April 19th, 2014]
- Brady Hoke says Michigan football team has shown great chemistry during offseason - April 19th, 2014 [April 19th, 2014]
- IIT Delhi Fire Incident Blast At Chemistry Lab - Video - April 19th, 2014 [April 19th, 2014]
- [Chemistry] [Chemistry II] - 14 - Reaction Rates Concept Video Part I Intro - Video - April 19th, 2014 [April 19th, 2014]
- Chemistry - Polarity - Video - April 19th, 2014 [April 19th, 2014]
- Basic Organic Chemistry Nomenclature of Alkanes and Bonding of Non-Metals - Video - April 19th, 2014 [April 19th, 2014]
- Introducing Green Chemistry into the High School - Video - April 21st, 2014 [April 21st, 2014]
- Chemistry - Ionic and Covalent Bonds - Video - April 21st, 2014 [April 21st, 2014]
- Tucson, AZ | Continuous News and Weather - April 22nd, 2014 [April 22nd, 2014]