A particulate snapshot of an aqueous mixture is verbally described as follows.
• Twelve light-gray spheres, each unpaired, are dispersed in the solution.
• Twelve black double-spheres are dispersed separately; each double-sphere consists of two identical black spheres joined together.
• Twelve green spheres are paired with the light-gray spheres to form touching pairs.
• Twelve blue spheres are entirely unassociated with any other spheres.
After thorough mixing, numerous tight pairs composed of one light-gray sphere and one green sphere settle out of solution as a solid, while all other species remain dispersed.
(a) Identify the aqueous ions represented by the light-gray, black, green, and blue spheres, based on typical inorganic ion colors used in particulate models (light-gray = Ag^+, black = NO3^−, green = Cl^−, blue = Na^+).
(b) Using appropriate solubility rules, predict the identity and physical state of the species that precipitates from the solution. Justify your prediction.
(c) Write the balanced molecular equation, the complete ionic equation, and the net ionic equation for the reaction that has occurred.