*Question*
Answer the following question given this paragraph: Temperature affects the solubility of solutes in all three states. Pressure also affects the solubility of gases. Q: What is the factor that affects the solubility of solutes in all three states? Choices: - oxygen - color - heat - temperature A:
**Answer**
temperature

*Question*
Answer the following question given this paragraph: Amines are molecules that contain carbon-nitrogen bonds. The nitrogen atom in an amine has a lone pair of electrons and three bonds to other atoms, either carbon or hydrogen. Various nomenclatures are used to derive names for amines, but all involve the class-identifying suffix ine as illustrated here for a few simple examples:. Q: What term is used to describe molecules that contain carbon-nitrogen bonds? Choices: - compounds - ions - nitrites - amines A:
**Answer**
amines

*Question*
Answer the following question given this paragraph: Streak is the color of the powder of a mineral. To do a streak test, you scrape the mineral across an unglazed porcelain plate. The plate is harder than many minerals, causing the minerals to leave a streak of powder on the plate. The color of the streak often differs from the color of the larger mineral sample, as Figure below shows. Q: What is the color of the powder of a mineral? Choices: - gray - organic - blue - streak A:
**Answer**
streak

*Question*
Answer the following question given this paragraph: Sodium and chloride ions have equal but opposite charges. Opposite electric charges attract each other, so sodium and chloride ions cling together in a strong ionic bond. You can see this in row 2 of the Figure above . (Brackets separate the ions in the diagram to show that the ions in the compound do not actually share electrons. ) When ionic bonds hold ions together, they form an ionic compound. The compound formed from sodium and chloride ions is named sodium chloride. It is commonly called table salt. You can see an animation of sodium chloride forming at this URL: http://www. visionlearning. com/library/module_viewer. php?mid=55. Q: Sodium and chloride ions have equal but what charges? Choices: - path - positive - simple - opposite A:
**Answer**
opposite