Answer the following question given this paragraph: Many solutes dissolve in water because water is a very polar compound. Q: Water's very polar compound causes most solutes to do what? A:
OPTIONS:
- gel
- combine
- repel
- dissolve

Answer: dissolve

Answer the following question given this paragraph: Selective precipitation can also be used in qualitative analysis. In this method, reagents are added to an unknown chemical mixture in order to induce precipitation. Certain reagents cause specific ions to precipitate out; therefore, the addition of the reagent can be used to determine whether the ion is present in the solution. Q: In qualitative analysis, reagents are added to an unknown chemical mixture in order to induce what? A:
OPTIONS:
- motion
- sunlight
- erosion
- precipitation

Answer: precipitation

Answer the following question given this paragraph: Descriptive statistics and graphs help organize data so patterns and trends are more apparent. Descriptive statistics include the mean and range. Types of graphs include bar, circle, and line graphs. Q: Bar, circle, and line are all types of what? A:
OPTIONS:
- theories
- maps
- algorithms
- graphs

Answer:
graphs