12. Which of the following operations usually makes a substance dissolve faster in a solvent? A. agitation C. Crushing of substance to a powder B. raising the temperature D. all of the above 13. An ionic compound has a solubility of 30g per 100 mL of water at room temperature. A solution containing 70 g of the compound in 250 mL of water at the same temperature is: A Saturated solution B. supersaturated C. unsaturated D. suspension solution 14. The oceans are an example of A an anhydrous B. a liquid C. a gaseous D. a solid 15. The amount of solute that can be dissolved in a specific amount of solvent at a given temperature is its A. Concentration B. Density C. dilute D. Solubility
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Answer:
1. D
2.A
3.A
4.B
Explanation:
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