As NH4Cl dissolves in water, and cools the solution, a. delta H is negative, and delta S is negative
b. delta H is positive, and delta S is negative
c. delta H is negative, and delta S is positive
d. delta H is positive, and delta S is positive

with this one i know the answer in craters one reason i looked it up and i learned about it there is my evidence

it’s previous models   because when i picked that son of a gun’s answer it was wrong look for previous models because they might make it a different letter  

answer; 4 electrons;