Sentences with phrase «molecules during chemical reactions»

Tolstikhin and his colleagues are working in the field of attophysics — a science which looks at very fast processes (1 attosecond, as = 10 ^ -LRB--18) s) such as the restructuring of electron shells or the displacement of atomic nuclei in molecules during chemical reactions.

Not exact matches

«When a new substance forms during a chemical reaction, many students think that the atoms and molecules have actually changed into something new, whereas they simply rearranged, that the mass increase of plants is due to minerals in the soil, or that cell division alone accounts for animal growth,» said Cari Herrmann Abell, a senior research associate at Project 2061.

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.

«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.»

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.

Performing chemistry experiments in a new way, they observed a key molecule that appears briefly during a common chemical reaction in the atmosphere.

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.