Answer:
7.146
Explanation:
use the equilibrium equation
2. The coefficients represent to molar ratios in a balanced equation.
Mezoic era began 252m years ago and ended 6.6m years ago.
It was a time of geological and biological transition. During this era the continents began to drift to their present configuration.
3 of the largest mass extinction occurred at this era. One which include the dinosaurs.
I hope this helped. :)
