1. The problem statement, all variables and given/known data Which of the following oxides reacts with water giving a mixture of 2 acids? (1) CO2 (2) NO2 (3) SO2 (4) P2O5 (5) ClO2 2. Relevant equations n/a 3. The attempt at a solution I know that, CO2 would give carbonic acid only, NO2 would probably give nitrous + nitric acid(so this could be the answer?), SO2 would give sulphurous acid, P2O5 would give phosphuric(5) acid for ClO2,I don't know how it reacts with water.would we get HClO or/& HClO2 or/& HClO3 or/& even HClO4? Hope someone can help me determine the answer. Thank you.