Sentences with phrase «during chemical reactions»

We can watch them change during a chemical reaction, and sometimes there are surprises.
In order to fully understand the dynamics during a chemical reaction, scientists must be able to study all movements of atoms and molecules on their basic time scale.
As a rule, molecules are only made when numerous atoms are bonded together during a chemical reaction.
The transfer of electrons during a chemical reaction in lead - acid car batteries produces a potential of more than 2 volts.
Just like a super slow - motion shot in a sports event or a documentary, these films will show the exact sequence of movements of the molecules during chemical reactions with a precision and level of detail that have never before been achieved.»
Nitrosamines and HCAs are often confused, since both occur during a chemical reaction with lean muscle meat.
Then, they reassembled the balls and sticks in a new pattern, illustrating how molecules form new substances during a chemical reaction without creating or destroying any atoms.
Likewise, the femtosecond «flashbulb» enabled scientists to observe phenomena never before seen in freeze - frame: vibrating molecules, the binding of atoms during chemical reactions, and other ultrasmall, ultrafleeting events.
The artificial pump is able to syphon off some of the energy that changes hands during a chemical reaction and uses it to push the rings together.»
This gives us a direct insight into the elementary processes during a chemical reaction,» reported Dr Torsten Berndt from TROPOS.
The latter can be imagined as chemical tools which fulfil various tasks during chemical reactions.
In the high school unit, Roseman noted, similar atomic and molecular models are also used but in conjunction with bar graphs and energy transfer diagrams to help students understand that the energy changes they observe during chemical reactions are associated with changes in the arrangement of atoms.
«This new curriculum unit is being designed to take on high school - level ideas about atom rearrangement during chemical reactions that build on ideas that are introduced in a companion unit that we developed for middle school students.
«Being able to observe how molecules exchange electrons during a chemical reaction opens the door to completely new types of studies of a number of fundamental biological and chemical processes.»
In the international edition of the journal Angewandte Chemie they report in detail on what happens on the gold surface during the chemical reaction.
«The world's shortest laser pulse: Seeing electron movement during chemical reactions
An uneven distribution of aluminum in the fresh zeolite catalyst causes an uneven distribution of coke deposits during chemical reactions.
This high resolution in time and space allows researchers to take snapshots of what is happening during chemical reactions, information that usually has to be inferred based on the final product.
Professor Gai studies dynamic atomic processes in reacting solids during chemical reactions.
Formation of pyruvate during this chemical reaction may be important in the provision of antioxidant benefits from this allium vegetable.
The process of bond breaking and bond making to convert reactants to products during a chemical reaction will be discussed.
In order to fully understand the dynamics during a chemical reaction, scientists must be able to study all movements of atoms and molecules on...
This unprecedented method of extracting the movements of electrons during a chemical reaction is a breakthrough in connecting traditional depictions of chemical mechanism with state - of - the - art quantum chemical calculations.
During the chemical reaction that would power the battery, the tri-anion would make the battery conductive by moving from one of its electrodes to the other.
During the chemical reaction they studied — the hydrogenation of propylene to propane — parahydrogen is part of the propane molecule and is converted into observable nuclear magnetism to enhance the MRI signal.
By shrinking the scale of laser spectroscopy down to mere attoseconds, the researchers say that the movements of atoms and electrons during chemical reactions can be more closely tracked.
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