What is the pH at 25 ∘C of water saturated with CO2 at a partial pressure of 1.10 atm ? The Henry's law constant for CO2 at 25 ∘C is 3.1×10−2mol/L3.1×10−2mol/L-atm. The CO2 is an acidic oxide, reacting with H2O to form H2CO3

Two solids are mixed in a flask and stirred. after a few minutes, the flask becomes cold. which of the following best describes this reaction? a. an exothermic reaction b. a combustion reaction c. an endothermic reaction d. a decomposition reaction