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The difference between the temperature of the polar and equatorial zones causes atmospheric circulation which is affected by a number of factors, including...
A phase transition is the transformation of a substance from one state of matter to another.
Carbon is bound in organic substances during photosynthesis, while during breathing, it is released into the atmosphere.
In benzene there are sigma bonds and delocalized pi bonds between carbon atoms.
This animation shows the electron configuration of the calcium atom.
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.
This animation demonstrates the structure of nitrogen molecules, with one sigma and two pi bonds holding the atoms together.
Fatty acid molecules consist of a polar head and a non-polar tail, therefore they are suitable for removing fat stains.
One of the oxoacids of nitrogen. Colorless, moderate acid with a pungent odor, that exists only in aqueous solution.
A compound formed as white smoke during the combustion of phosphorus.
Limestone is a widely and diversely used material.
Colorless, moderate acid, only known in aqueous solution.
Polymerized ethylene is known as polyethylene, a type of plastic.
The design and structure of modern houses play an important role in environmental protection.
Ammonium chloride is the result of the reaction of ammonia and hydrogen chloride