X2(so4)3
Aluminum is a metal whose oxide is reduced only by carbon. When aluminum oxide is reduced by carbon, it forms aluminum and carbon dioxide.
The acid with the formula HNO3 is called nitric acid.
I expect you mean, toluene, whose chemical formula is C7H8. Please see the link.
The name of the acid with the formula H2CO3 is carbonic acid.
The correct name for the acid with the chemical formula H2SO4 is sulfuric acid.
Where M represents a generic metal the formula is M(OH)3
The chemical formula for blue vitriol (copper sulphate pentahydrate) is CuSO4.
There is no chemical formula for a metal. Metals are elements, whose chemical symbols are on the periodic table of the elements.
As Barium's atomic number is 56 and as it has 2 electrons in its outer shell (this is also due to the fact that it is in Group 2) its valency is 2. It loses 2 electrons to attain the electronic configuration of Xenon whose atomic number is 54, so it is electropositive and is a metal.Therefore its valency is 2+. As Barium's atomic number is 56 and as it has 2 electrons in its outer shell (this is also due to the fact that it is in Group 2) its valency is 2. It loses 2 electrons to attain the electronic configuration of Xenon whose atomic number is 54, so it is electropositive and is a metal.Therefore its valency is 2+.
C2h6
They are the noble gases whose outermost (valency) orbitals are full.
Valency is the number of hydrogen atoms that can combine with [or displace] one atom of the element [or radical] to form a compound. For example, one atom of hydrogen combines with one atom of chlorine to form hydrogen chloride [HCl]; so, the valency of chlorine [chloride] is one. Similarly, the valency of the nitrate radical [NO3] in the compound nitric acid [HNO3] is 1, and the valency of the sulfate radical in the compound sulfuric acid [H2SO4] is 2. For elements that do not combine with hydrogen, the valency is the combining power of the element with another element whose valency is known. Valency may also be defined as the number of electrons that an atom donates or accepts to form the duplet state (i.e., 2 electrons in outermost shell) or octet state (i.e., 8 electrons in outermost shell). The valency of an element [or radical] is always a whole number. Elements [or radicals] with valency one are monovalent, those with valency two are divalent, and those with valency three are trivalent
iron is the metal whose food is made
Gold is a soft valuable metal whose purity is measured in carats.
Metal value is determined by the purity of the metal. It is a commodity whose price depends on supply and demand.
formula
Formula