nH2O typically refers to a complex where "n" represents the number of water molecules attached to a particular compound. It is commonly used in chemistry to indicate a hydrated form of a substance.
Silicon dioxide and dihydrogen oxide (water)
Rust is also called oxidized iron. Also dehydrated iron hydroxide: Fe2O3.nH2O
Kieselguhr is a rock not a chemical compound with a chemical formula.
Fe2O3.H2O
Opal is a mineraloid gel. It is made, oddly enough, almost entirely of opal. It is also completely free of birefringence, and has virtually no pleochroism. Opal is basically silica. Saying opal is made of opal is like saying quartz is made of quartz, or tiger eye is made of tiger eye. It's the unique structure of the silica that makes it become opal. The Japanese have made a nice man made opal using silica and zirconium oxide. Si02nH20
The meaning of nH2O is a n (unknown) number of crystallization water molecules.
The chemical name of NH2O-4 is tetrahydroxidoammonium.
No, NH2O is not a compound. It is a molecular formula representation for ammonia (NH3) with an additional hydrogen atom attached (H2O), which is not a stable or common compound.
The molecular formula for hydrated silica is SiO2 • nH2O, where n represents the number of water molecules attached to each silicon dioxide unit.
Rust is formed fro Fe2O3.nH2O and Fe(OH)3.
Rust is hydrated iron oxides: Fe2O3.nH2O + FeO(OH).
Rust is formed from Fe2O3.nH2O and Fe(OH)3.
Fe2O3.nH2O is the most common type of rust that you may recognise.
Silicon dioxide and dihydrogen oxide (water)
Limonite is an iron ore; the approximative composition is FeO(OH).nH2O.
Rust is also called oxidized iron. Also dehydrated iron hydroxide: Fe2O3.nH2O
The chemical formula for rust is Fe2O3.nH2O. Rust is formed when iron reacts with oxygen in the presence of water.