Answer:
0.7 g/ml. Whichever material matches that closest is the right one.
there are 2 copper atoms on the left side of the arrow, but none on the other side. there are also 7 oxygen atoms on the left hand side, but only 5 on the right hand side of the arrow.
HCl(aq) + KOH(s) --> KCl(aq) + H2O(l)
Answer: option D. triple bond and one lone pair
Explanation: