Question

question 7 1 pts substance will when solution conditions are such that its concentration exceeds its solubility. evaporate dissolve precipitate explode question 8 1 pts substances with relatively low solubilities are said to be. hygroscopic miscible metastatic insoluble

Explanation:

• For Question 7: When a substance's concentration exceeds its solubility in a solution, it forms a solid (precipitate) as it can no longer stay dissolved. Evaporate refers to liquid turning to gas, dissolve is the opposite (substance going into solution), and explode is an extreme reaction not related to solubility - concentration excess.
• For Question 8: Substances with low solubilities are called insoluble (though in reality, very few are truly completely insoluble, but in this context of relative low solubility, insoluble is the term). Hygroscopic means absorbing moisture from air, miscible refers to liquids mixing well (like ethanol and water), and metastatic is a medical term (related to cancer spreading).

Answer:

Question 7: C. precipitate
Question 8: D. insoluble