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.

i think it A

Explanation:

- "the choice that is not an indicator of a chemical change is "state of matter changes". more common than not, chemical reactions produce energy in the form of light or heat. along with energy, they also produce a new substance called the product that could be in any state of matter (solid, gas, or liquid)."