The problem ask to calculate of find the atmospheric pressure of water having a boiling point of 81 degree. Base on my calculation i came up with an answer of 292 mm HG. I hope you are satisfied with my answer and feel free to ask for more if you have clarification and question
The answer is b weathering
Answer:
Cu(NO3)2 + BaS ==> Ba(NO3)2 + CuS
Explanation:
Ba(NO3)2 + CuSO4 = BaSO4 + Cu(NO3)2 (Barium nitrate + Copper (II) sulfate)
charge of elements increases by one as you move from left to right.
I believe it would be the second one. Because it is asking how to prevent it before it happens so it would not be a or d and c would not be good because you do not want to smell chemicals.