Sentences with word «reactant»

The protesters argue that because the amounts of reactants still in the shaft are unknown, no - one can rule out a further blast.
A new paper, presented at the SolarPACES Annual Conference proposes using ceria particles not only as the redox reactant in hydrogen production, but for also for heat transfer and storage.
Ordinary chemical synthesis relies on thermal agitation to bring reactant molecules in solution together in the correct orientation and with sufficient energy to cause the desired reaction.
The main areas covered in this work booklet are: Relative formula mass Balancing equations Empirical formula Yield Reacting masses Conservation of mass Limited reactants Concentration Moles Avogadro number Within the booklet are a range of different activities for students to work through to help them remember the content.
In particular, Hur's computational studies helped settle a long - standing question over whether all enzymes catalyze reactions by stabilizing a chemical intermediate called the «transition state,» which appears during the conversion of reactants into products.
Ferritin: This lab is normally run to look at stored iron levels, but it's also considered acute phase reactant, and when high it's a sign of inflammation.
In a conventional MOCVD system, semiconductors are created as reactant gases flow over a substrate, parallel to its surface.
It's a liquid - based puzzle platformer with «optimized liquid simulation featuring flowing water, scalding lava and steam, reactant chemicals, glowing goo, the mysterious «protoplasm,» and more.»
Before Pope, Hansen, Bayes, Friedl and Sander, others had tried to figure out the amount of ClOOCl in the light path by mass balance, starting from the initial reactant concentrations and using absorption spectroscopy in various regions of the spectrum to assign concentrations of the stable species where known.
A metal catalyst works by causing reactants to bind to its surface, a process known as adsorption.
Various genes have been identified to be associated with the calcification mechanism and are involved in the transport of CaCO3 reactants.
Identification of the precise bond configuration of the intermediate species has allowed determining the sequence of chemical transformations along the pathway from reactants via intermediates to end products and unraveling the microscopic mechanisms behind that intricate dynamical behavior.
Like some enzymes, they can do work on reactant molecules to drive reactions not otherwise thermodynamically favored.
The products and reactants needed for the 4 different acyl chloride reactions The reaction mechanism for Acyl Chlorides is not covered in this single lesson powerpoint but another resource.
The process of bond breaking and bond making to convert reactants to products during a chemical reaction will be discussed.
«People experiencing apathetic boredom reported few positive emotions, but also few negative emotions, unlike reactant boredom.
In cases for which reactant and product (A, B, P, Q) concentrations are not held constant but are allowed to follow the usual (nonlinear) equations which govern ordinary diffusion, development of spatial order is to be expected, if the chemical equations of the Brusselator apply.
To Arnold that residue was like a flashing «caution» sign, an indication that potentially toxic impurities and leftover reactants had failed to separate from the brew.
But over time he became expert at using solvents to wash the impurities and reactants away, and his compounds increasingly came to form translucent, icelike crystals that indicated a high level of purity.
Traditionally, industrial processes use heterogeneous catalysts, where reactants pass through a bed or gauze of solid catalyst.
Wester and colleagues used two crossed beams that bring the neutral reactant molecules and the attacking halogen ions to collision.
«You need to have some type of closed system to be sure that the different reactants of the metabolism, or different mechanisms, can interact with each other and also have a kind of Darwinian evolution.
Those enzymes are added as a kind of cocktail mixture, and they run into each other randomly to create the necessary reactants.
Hans Bechtel, a research scientist at Berkeley Lab who works at the ALS infrared beamlines, added, «You can simultaneously see reactants and the products formed in reactions.»
The reactions converted nonfluorescent reactants to highly fluorescent products, allowing the researchers to watch the process unfold using high - resolution fluorescence microscopy methods.
By understanding the details of this motion, one can determine the amount of energy needed to transform reactants into products in a chemical reaction, or the color of light absorbed by a molecule, and ultimately accelerate the design of new drugs and materials, better catalysts and more efficient energy sources.
The defect in the SAM was sized so that only two organic reactant molecules would fit and would only attach with the desired alignment.
Enzyme - like molecular machines can hold reactants in the best relative positions as bonds are strained or polarized.
«This provides exceptional mechanical, thermal, and chemical stability as well as high surface area and full accessibility to diffusing reactants
For two classes, catalysis in narrow pores of mesoporous particles and catalysis on metallic surfaces exposed to high pressure, crowding prevents reactants (and products) from moving enough to mix.
It's ability to generate byproducts when it scavenges free radicals and related reactants, that are also free radical scavengers thereby greatly exaggerating the antioxidant potential of melatonin.
But after vacuuming, you will want to use a pesticide that has two primary reactants.
The design of prototypes on a large size scale is needed to identify the critical effects that bubbles, reactant input and product output flows, optical issues, and other such issues will have on the performance of a solar - fuels generator.
For these applications, one unit of fuel energy is equivalent to at least one unit of electricity (probably more because the fuel is often a critical reactant in the process).
CRP is a very non-specific acute phase reactant, so it isn't the best way to rule out silent inflammation.
But most lab reactions use homogeneous catalysts (in the same liquid phase as reactants and products).
For given values of system parameters (temperature, reactant concentration, etc.), each oscillation will be a duplicate of the previous one, once an initial «warm - up» period is over.
Injecting stock solution aliquots of the catalyst and reactants into a carrier solvent stream let the authors vary the main solvent efficiently and scale up the optimal conditions for product isolation.
For instance, in the case of the Brusselator, there is a single steady - state solution if the concentrations of reactants (A and B) is not large, 13 relative to the concentrations of products (P and Q).
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