The definition of a transition metal is that it must have an incompleted sub-level in one or more of its oxidation states. As zinc has a completed sub-level at all oxidative states, so it can't be considered a transition metal.
Answer:
The answer is D
Explanation:
for a p e x
SO2 this is my answer
..wkkwks
9 days, or 3 half-lives
5.2x10^5=520000
6.5x10^4=65000
65000/520000=1/8, or 3 half-lives
3x3=9 days
I'm not the greatest at Chem but this seems more like math than Chem :)
the anserw should be 665KJ
3 atoms
2 hydrogen atoms and 1 oxygen atom
