The compound CoCl₂ · 4 H₂O is called cobalt(II) chloride tetrahydrate. In this compound, cobalt is in the +2 oxidation state, and the "tetrahydrate" indicates that there are four water molecules associated with each formula unit of cobalt(II) chloride. This hydrated form is often used in various chemical applications and as a color indicator.
The iconic compound name for Sn(NO2)4 is tin(IV) nitrite. In this compound, tin has a +4 oxidation state, which is indicated by the Roman numeral IV in the name. The nitrite ion (NO2^-) is present in a quantity of four, balancing the charge of the tin cation.
The systematic name for Ca(NO3)2·4H2O is calcium nitrate tetrahydrate. In this compound, calcium (Ca) is combined with two nitrate ions (NO3) and four water molecules (H2O), indicating the presence of water of hydration. The "tetra" prefix signifies that there are four water molecules associated with each formula unit of calcium nitrate.
The name of the compound CBr4 is Carbon Tetrabromide. The ending of the second element is changed from 'ine' to 'ide'. Since this is a covalent compound of two nonmetals, the 4 is used on the bromide.
H2O
Chemical Spider mention the name 2λ4-Diazathia-1,2-diene-1,3-diyldisulfanide.
The formula for cobaltous chloride is CoCl2. It consists of one cobalt atom bonded to two chloride atoms.
[Cu(NH3)4]SO4.H2O is tetraamminecopper(II) sulphate monohydrate. Note: sulphate is also spelled as sulfate.
The oxidation number of carbon in COCl2 is +2. In this compound, oxygen has an oxidation number of -2, and chlorine has an oxidation number of +1. Since the overall charge of COCl2 is zero, the oxidation number of carbon must be +2 to balance out the charges.
A hydratd ionic solid is one that contains water. THis used to be called water of crystallisaion. Tthe formulae of such ionic solids is written as say CoCl2.(H2O)6. Sometimes the water molecules are grouped around the cation and are said to be coordiated to it. Sometimes water molecule(s) are not bound to the cation. An example of a salt with both sorts is CoCl2.(H2O)6. In this 4 water molecules and two chloride ions surround the Co2+ ion and two water molecules are not coordinated.
The compound name for Pb(OH)4 is lead(IV) hydroxide.
If you form 4 H2O you form 4 stochiometric equivalents of water
The name of the compound Pb3(PO4)4 is lead(IV) phosphate.
The compound is lead(IV) nitrate, with the formula Pb(NO3)4.
carbon tetrachloride
The systematic name for Ca(NO3)2·4H2O is calcium nitrate tetrahydrate. In this compound, calcium (Ca) is combined with two nitrate ions (NO3) and four water molecules (H2O), indicating the presence of water of hydration. The "tetra" prefix signifies that there are four water molecules associated with each formula unit of calcium nitrate.
Two molecules of cobalt chloride have 2 Co atoms and 4 Cl atoms.
What is the name of the following organic compound?