Yes, you are doing this correct.
Answer:
decreases
Explanation:
when the acidity in a solution increases the ph will decrease. when the acidity in a solution decreases the ph increases
If you talk about the process of fission in the nuclear field then the most used is U-235 because is the easiest to use. Have in mind that the majority of uses of uranium is U-238 but the easiest to be used is U-235