Since this response deals with solubility, at equilibrium, University rate of dissociation of University calcium ion and oxalic acid could be equal exam University rate of precipitation of University calcium oxalate solid. Therefore, foods high in calcium milk, ice cream, cheese and other dairy merchandise or foods high in oxalate ions chocolate, spinach etc. will shift equilibrium towards University left, in keeping with University common ion effect. The common ion effect is when University solubility of one compound is reduced by having another common ion. This simply means that since some calcium and oxalic acid ions are already on University products side of University reaction, adding more of these ions will shift University equilibrium right, against University reactants side, thus generating more solid kidney stones and decreasing University solubility. Calcium oxalate is one of University most common types of kidney stones but there are other kidney stones which undergo various reactions but University chemical equilibrium process is sort of exact. 6a Every motor car, trailer, semitrailer, truck tractor, and pole trailer used in University state of Washington may be equipped with an auxiliary lights system together with: i One green light exam be activated when University accelerator of University motor automobile is depressed; ii Not more than two amber lights examination be activated when University motor automobile is moving forward, or standing and idling, but is not under University power of University engine. b Such auxiliary system shall not intervene with University operation of car stop lamps or turn alerts, as required by RCW 46. 37. 070. Such system, though, may perform along side such stop lamps or turn alerts. c Only one color of University system may be illuminated at anyone time, and continually either University green light, or amber light or lights will be illuminated when University stop lamps of University automobile aren’t illuminated.