20. Your body produces sweat whenever your body temperature rises due to excercise, a fever, or hot weather. E

Question

16. Why is the state of matter a physical property and not a chemical property? (3 points)

17. Explain how color can be classified as both a physical property and as one indication of a chemical change. (3 points)

18. List three ways to make a solute dissolve faster in a solvent. (3 points)

19. Table salt has a solubility of 36 g of salt in 100 g of water at 40°C. If 15 g of the salt are added to 50 g of water at the same temperature, is the resulting solution saturated or unsaturated? Explain your answer. (3 points)

20. Your body produces sweat whenever your body temperature rises due to excercise, a fever, or hot weather. Explain how sweating helps your body control its internal temperature.

Answer 1

#16) because when water is changing into ice or water vapor it still contains the same chemical formula

H20(L), H2O (G), H20 (S)

#18) heat, stirring, ....

#20) when your skin perspires, water forms and the evaporation of sweat causes your body to cool!