Jūsų pirkinių krepšelis tuščiasParduotuvė
Animacijoje parodyti pagrindiniai dirvožemio taršos šaltiniai
Ši animacija rodo pagrindinius oro taršos šaltinius: žemės ūkio, pramonės ir miesto oro tarša.
This animation shows the electron configuration of the calcium atom.
Carbon is bound in organic substances during photosynthesis, while during breathing, it is released into the atmosphere.
This animation demonstrates the structure of nitrogen molecules, with one sigma and two pi bonds holding the atoms together.
The difference between the temperature of the polar and equatorial zones causes atmospheric circulation which is affected by a number of factors, including...
Major phases in the history of theories and views about the structure of the atom.
Combining a conventional internal combustion engine propulsion system with an electric propulsion system reduces emission.
Aluminium smelting is the process of extracting aluminium from alumina by electrolysis.
Energy released during nuclear fission can be used for civilian or military purposes.
Human activity increases the greenhouse effect and leads to global warming.
The ozone layer filters the Sun´s harmful UV radiation, therefore it is indispensable for life on Earth.
A phase transition is the change of a substance from one state of matter to another.
In benzene there are sigma bonds and delocalised pi bonds between carbon atoms.
A compound formed as white smoke during the combustion of phosphorus.
One of the oxoacids of nitrogen. Colourless, moderate acid with a pungent odour, that exists only in aqueous solution.
Fatty acid molecules consist of a polar head and a non-polar tail, therefore they are suitable for removing fat stains.
Metals forming hexagonal metallic lattices are rigid and difficult to machine.
During the substitution reaction the hydrogen atoms of methane are substituted with chlorine atoms, the by-product is hydrogen chloride.
Hydrogen atoms within hydrogen molecules are held together by a covalent bond.