Answer:
The relationship of pH and concentration of H+ ion is pH = -lg[H+]. So the concentration of H+ is 10^(-2). And [OH-][H+]=10^(-14). pOH + pH = 14. So the right answer is A.
Gas to solid ( a ) is correct i think
Answer:
A. 22.41
Explanation:
goodluck man, just typing a little bit more for the 20 words
Exothermic is the right answer my friend
The answer is A, underground