It is always feasible that a substance will dissolve in water when:
A. Enthalpy is positive and entropy is negative.
B. Enthalpy is negative and entropy is negative.
C. Enthalpy is negative and entropy is positive.
D. Enthalpy is positive and entropy is positive.

Yes you are correct use the scientific method

Ans. : frostbite is when exposure to cold temperatures causes freezing to the skin or other tissues. it most commonly affects the hands, feet, and face. the longer areas are exposed to cold, typically the worse the frostbite. the water temperature used for rewarming a frostbitten part should be : (102 -105) f degrees.