Vodka was discovered around the year 1893 in Russia, under the name of "aguinha" (vodka in Russia...

In the illustration above we see what looks like pieces of snow that are on fire. Is this really ...

O boronis a semimetal belonging to the 3A family or group 13, with five protons in its structure....

The act of serving drinks in the company of friends is very old and, of course, when done in mode...

There are papers for all purposes, for personal hygiene, for studies and for transmitting informa...

THE Brazil's recent foreign policy is characterized by the categorical stance that the country ha...

The hydration of alkynes is a reaction of addition of water molecules in an acidic medium in the ...

The fuels used in most cars are gasoline and ethanol. The complete combustion of these two fuels ...

At ordinary batteries are called Leclanché batteries named after its inventor, the French chemist...

The oxidation number (NOX) of an atom in a molecule or a polynuclear ion corresponds to the charg...

At optical fibers are flexible filaments capable of transmitting light from a light emitter to a ...

Did you know that ammonia is among the five most produced substances in the world? And was his di...