Water typically exist in its gaseous state in the atmosphere. Fog contains droplets of liquid water suspended in the air. Thus to produce a fog, vapor in the air would undergo condensation with a state change from gas to liquid.
Intermolecular interactions between water molecules strengthen as the vapor condenses to produce a liquid. The condensation of vapor thus involves a production of energy. With all the extra intermolecular interactions, molecules in the fog would find it more difficult to move around and therefore see a decrease in their motion.
Answer:
Explanation: A yellow precipitate o lead iodide is formed. see equation of reaction below:
→ ![PbI2 + 2K(NO3)2](https://tex.z-dn.net/?f=PbI2%20%2B%202K%28NO3%292)
Th PbI2 is the insoluble yellow precipitate