1. THE CO2-H2O SYSTEM. Carbonic acid is a weak acid of great importance in natural waters. ... reacts with water to form carbonic acid: CO2(aq) H2O(l) H2CO30 ...
... , Europium, zirconium, lutetium, vanadium, And lanthanum and osmium and astatine and radium, And gold and protactinium and indium and gallium, And iodine and ...