Answer:
the answer is very correct as AgNO3 and Cu(NO3)2
Answer:
see below
Explanation:
The rate constant is missing in question, but use C(final) = C(initial)e^-kt = 0.200M(e^-k·10). Fill in k and compute => remaining concentration of reactant
Searching "electron configuration of chromium on google images will easily provide you with the answer.
I think it’s A, because all of these are related to fossil fuel somehow.