If you think to an anhydrous salt this is a salt which doesn't contain any water in the crystalline structure.
RaCO3 is a salt composed of the metal cation Ra2+ and the carbonate anion CO32-. It is neither an acid nor a base, but rather a salt.
acid anhydride
An anhydride is not an acid and not a base.
Trifluoromethanesulfonic anhydride = (CF3SO2)2O
Nitrogen Dioxide-NO2 is also called as mixed anhydride.
An anhydride is a compound formally derived from another by the loss of a water molecule.
The product of the reaction between anthracene and maleic anhydride is known as anthracene-maleic anhydride adduct. This adduct is commonly used in the synthesis of dyes, polymers, and other organic compounds.
Nitric acid does not form the anhydride but dinitrogen penta oxide is theoretical anhydride of nitric acid.2HNO3 = N2O5 + H2O==========No. From the Wikipedia article on nitrogen pentoxide:N2O5 was first reported by Deville in 1840, who prepared it by treating AgNO3 with Cl2.Therefore, nitrogen pentoxide is the anhydride of nitric acid.
Your question has the names right in it. Maybe it's the chemical formulas you want. In that case, salicylic acid is C7H6O3 and acetic anhydride is C4H6O3.
Ethanoic anhydride can no longer be oxidized by any oxidizing agent.
An acid anhydride is an organic compound that has two acyl groups bound to the same oxygen atom. Usually, the acyl groups come from the same caboxylic acid, he formula for the anhydride being (RC(O))2O + H2O
The chemical reaction mechanism between maleic anhydride and anthracene involves a Diels-Alder reaction, where the maleic anhydride acts as the dienophile and the anthracene acts as the diene. This reaction forms a cyclic compound called anthracene-maleic anhydride adduct.