Final answer:
Solubility properties are related to a compound's ability to dissolve, influenced by temperature and pressure, and are used to classify compounds as soluble or insoluble in a specific solvent.
Step-by-step explanation:
Solubility properties are related to the ability to dissolve. This characteristic describes the extent to which a substance can form a homogeneous mixture with a solvent such as water. Compounds can have a range of solubility from highly soluble, which means they dissolve readily, to insoluble, where they do not dissolve or do so very slightly. The solubility of substances is affected by temperature and, for gases, by pressure as well. For example, increasing temperature generally increases solubility for solids and liquids but decreases solubility for gases—a concept described by Henry's law.
To classify the solubility of given compounds:
- Zn(NO3)2 is soluble because all nitrates are soluble.
- PbBr2 is slightly soluble or insoluble in water, but its solubility increases with temperature.
- Sr3(PO4)2 is generally insoluble in water based on common solubility rules.
These classifications utilize solubility rules, which are general guidelines predicting which ionic compounds are likely to be soluble in water.