Question

PEOPLE HELP I DONT WANT TO FAIL John hypothesized that dissolving salt into water produced a chemical reaction because the salt completely disappeared in the water. He dissolved 10 grams of salt into 500 mL of pure water. After leaving the beaker in the sunlight a few days, the water completely disappeared and salt crystals were left in the bottom of the beaker. Based on this observation, John knew his hypothesis was incorrect because- O A. the salt failed to completely dissolve in the water. B. the sunlight caused the chemical reaction to stop. C. the temperature of the pure water was below room temperature. O D. the salt and water were separated by a physical process. ​

Answer 1

D. salt and water do not produce a chemical reaction, rather a physical one, thats why the salt stays behind after the water disappears... because it never changed other than its physical appearance