Question 1 from 11: What measures the Mohs scale, invented in 1812 by the German mineralogist Friedrich Mohs?
Question 2 from 11: How are called the alkanes, saturated hydrocarbons with simple chains and chemical formula CnH2n + 2?
Question 3 from 11: Who is the French physicist and mathematician, considered to be one of the founders of classical electromagnetism, from which comes the name of the unit of measurement of the current intensity?
Question 4 from 11: What is the instrument used to measure voltages in electrical circuits?
Question 5 from 11: What is the process by which an atom, ion or molecule loses electrons?
Question 6 from 11: What American scientist invented the nylon in 1934?
Question 7 from 11: What name has the instrument used to measure atmospheric pressure?
Question 8 from 11: What is the chimic name of the phenomenon which impliesthe transformation from the solid state directly to the gassing state, without passing through the liquid state?
Question 9 from 11: What mineral with the chemical formula FeS2 has a tone like golden and is sometimes referred to as "the gold of the stupidity", being confusing for those who excite it?
Question 10 from 11: What name is given to metals that shows a high resistance to oxidation and corrosion in wet air?Many of these metals are precious, for example: rhodium, palladium etc.
Question 11 from 11: What name is given to metals that shows a high resistance to oxidation and corrosion in wet air?Many of these metals are precious, for example: rhodium, palladium etc.