Nitrogen dioxide, a pollutant that contributes to photochemical smog, is formed by a series of two reactions. N2(g)+O2(g)⇌2NO(g) Kc1=4.3×10−25 2NO(g)+O2(g)⇌2NO2(g) Kc2=6.4×109 N2(g)+2O2(g)⇌2NO2(g) Kc(overall)=? Choose the equilibrium constant expression for the overall reaction.

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Cobalt (co)hoped i

The answer is sucrose.

Large asteroid and comet impacts. because they can have a huge impact on the environment, such as a loss of land, and crust on the earth with the big holes they produce. on the other hand, volcanic eruptions can also cause change within the environment by producing land, but im actually not quite sure which one would be a better answer, hopefully you read this and didnt just flat out choose the first sentence i have spoken! your welcome~