Acid-anhydrides that formsacids when dissolved in water are

Answer 1

Do you have any choices.
I call them non-metallic oxides; e.g., P2O5 forms H3PO4.
N2O5 forms HNO3
N2O3 forms HNO2
SO3 forms H2SO4
SO2 forms H2SO3
CO2 forms H2CO3
etc

Answer 2

Last post since DrBob222 has replied.

Answer 3

Understood! If you have any more questions in the future, feel free to ask.