Can acetic acid be substituted for acetic anhydrous?

Glacial acetic acid is simply pure or very nearly pure acetic acid. It's formula would simply be CH3CO2H.

Glacial acetic acid refers to Concentrated Acetic acid(98 - 100 %). Whereas, the term Acetic acid can refer to any concentrations(25% or 50% or any, even 100%).answ2. The addition of Glacial to the...

pure acetic acid freezes a bit below comfortable room temperature so that means that when the lab is cold, acetic acid will freeze into pretty white crystal that resemble glaciers

Chloroacetic acid is stronger.

Yes it can be, but the reaction might be slower