chemical reaction

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chemical reaction,

n rearrangement of atoms or ions accompanying energy change. A catalyst, such as heat or an enzyme, may alter the rate of reaction.
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The observed chemical reactions occurred in the absence of enzymes but were made possible by the chemical molecules found in the Archean sea.
The researchers believe their results could impact a variety of fields including molecular electronics, biology and energy science through the development of new types of chemical reactions.
After about 10 minutes, the researchers added magnetic beads designed to latch on to those strands whose molecules had undergone a chemical reaction.
However, if precursor molecules for making proteins, RNA, and DNA came from space, life-creating chemical reactions within Earth's primordial soup could have greatly accelerated.
The trouble, says electric-parts supplier Batson, is that the chemical reactions inside the battery eventually stop.
Chemical Reactions - Introduction - Chemical Reactions - Properties - Distillation & Reflux - Crystallization - Drying - Filtration - Process Flow Diagrams (PFDs) - Water Types & Testing - Water Impurities & Treatment
Researchers are finding that bacteria living on the seafloor may be key players in the chemical reactions that slowly transform the rocks there, and in the process, help balance ocean chemistry.
Two chemical reactions take place to produce the burst of color you see in the sky.
The MMR chemical reactors, while relatively new, have demonstrated their ability to perform continuous chemical reactions in varied applications which yield, with unparalleled precision, controlled size, purity, product uniformity and pharmacokinetic properties.
coli that can distinguish between very similar crystal faces of zeolites--porous inorganic crystals that are used to separate molecules and catalyze chemical reactions.
IRad's in-situ plasma source allows film-forming chemical reactions to proceed at temperatures that are significantly lower than those required for thermal CVD.
The same process worked for palladium and platinum, precious metals well known for catalyzing chemical reactions.