http://studysciences.com Make Sciences more interesting Wed, 06 Jan 2010 23:55:51 +0000 http://wordpress.org/?v=2.8.4 en hourly 1 http://studysciences.com/organic-chemistry/chemistry-quiz-for-christmas/ http://studysciences.com/organic-chemistry/chemistry-quiz-for-christmas/#comments Tue, 01 Dec 2009 12:41:40 +0000 Jim Clark http://www.studysciences.com/?p=533

Chemistry Quiz Rules 0. Read rule 15 now. 1. When you wish to take a quiz, a. obtain one from the classroom quiz repository, or from your teacher...

Using worksheets to prepare for quizzes in chemistry Why worksheets rather than lectures? You will recognize that much of subject matter in our chemistry program is taught without lecture. It is not that...

Ambiguity on Chemistry Our students entering chemistry appear well prepared to deal with certainties in a scholarly fashion. If A = B and B = C then A...

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All you have to know about Bonding Chemistry Bond is the word we use when we speak of what holds things together. It is useful to organize the universe into the different types...

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Lewis Dot Structure Flow Chart Given the following structures to be drawn: N, Be+2 , F-1 , CaF2 , CH3CH3, CH2CH2, PO4-3, K2SO4, H3PO4 1. Look for isolated atoms: [N] is an atom...

Lewis Dot Structures Worksheet 1 of 5 atoms Draw only outer electrons that fill in the A groups. Maximize the number of unpaired electrons. Examples simple ions Atoms gain or lose...

Lewis Dot Structures Worksheet 2 of 5 simple covalent molecules A covalent bond is a pair of electrons (usually one from each atom) shared between two nuclei. In a correct structure,...

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Fighting Malaria with Magnetic Radiation Malaria is one of the most deadly infectious diseases in the world, second only to tuberculosis. Worldwide, up to 500 million people suffer from malaria,...

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Chemical Damage due to Cigarette Smoke Two Nails in the Coffin of Coffin Nails Recent research has shed more light on the biological and chemical consequences of exposure to cigarette smoke. In the first study, reported in the October...

Biosensors Chemical Canaries in Biological Coal Mines Chemists have been making important contributions in the exciting field of biosensors. A biosensor is a device that recognizes a target molecule in a sample...

Exposure to Indoor Pollutants We usually think of automobiles and factories as the greatest sources of pollution. The Clean Air Act of 1970, revised in 1990, has succeeded in...

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Carbon and Nanotubes In 2000, we reported on new research on buckyballs, spherical forms of carbon that were first discovered in 1985. In 1991, physicist Sumio Iijima discovered...

1996 Nobel Prize in Chemistry Recognizes Discoverers of Buckyballs The Three Faces of Carbon Most students of chemistry are familiar with the common allotropic forms of carbon: diamond and graphite. The 1996 Nobel Prize in Chemistry went to Robert...

New Materials Containing Cages, Cobalt Zeolites Synthesized Zeolites, or molecular sieves, occur naturally and can also be synthesized in the laboratory. The unusual properties of these aluminosilicates and aluminophosphates are a result...

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Biosensors Chemical Canaries in Biological Coal Mines Chemists have been making important contributions in the exciting field of biosensors. A biosensor is a device that recognizes a target molecule in a sample...

Molecules That Read Grooving on DNA in a Minor Way For several years now, chemists and biologists have been intrigued with DNA “antisense” technology. For example, chemists have designed modified RNAs which, through complementary base-pairing,...

Self-Assembling Supermolecules Communities of Affectionate Molecules The ionic bond and the covalent bond hold atoms together; however, weaker, albeit very important, types of forces provide weaker, noncovalent [...]...

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Carbon Nanotubes Synthesized for Many Applications Single-walled nanotubes (SWNTs) are tubes of carbon atoms linked by conjugated single and double bonds; they resemble a sheet of graphite rolled up to form...

1996 Nobel Prize in Chemistry Recognizes Discoverers of Buckyballs The Three Faces of Carbon Most students of chemistry are familiar with the common allotropic forms of carbon: diamond and graphite. The 1996 Nobel Prize in Chemistry went to Robert...

The Role of Iron in Fixing Carbon Ironing Out the Carbon Balance Phytoplankton, microorganisms found in the oceans, fix carbon from CO2 by photosynthesis and thus play a key role in regulating the carbon dioxide level in...

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Molecular Modeling Success, Methane Monooxyenases Methane monooxygenases (MMOs) are enzymes found in organisms that use methane as their sole source of carbon and energy. The structure of the active site...

Biosensors Chemical Canaries in Biological Coal Mines Chemists have been making important contributions in the exciting field of biosensors. A biosensor is a device that recognizes a target molecule in a sample...

Chemical Alteration of Cell Surfaces Cellular Velcro The molecules at the surfaces of cells govern or modulate many important biological phenomena, such as cell growth, cell differentiation (the determination of cell type),...

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