Does acetic anhydride reacts with acetic acid?

As an anhydride, It can be prepared by dehydrating its acid, i.e. Acetic acid, by strong dessicant such as Tetraphosphorus decaoxide (P4O10) : P4O10 + 12 CH3COOH ----> 4 H3PO4 + 6 (CH3CO)2O

Yes, on heating above 1000 Celsius acetic acid forms the acetic anhydride which on reaction with phenol forms the phenyl acetate.

Yes it think they will react, if Acetic acid is hot and concentrated, and iron is in form of steel wool. It will produce Iron(III) acetate and hydrogen, and left over will be small amount of carbon....

There is no reaction. Acetic acid is a kind of carboxylic acid.

Yes.Acetic Anhydride:MF: C4H6O3MW: 102.1CAS #: 108-24-7Glacial Acetic Acid:MF: C2H4O2MW: 60.1CAS # 64-19-7