1. Put the layers of Earth in order from densest to least dense.
A. Crust, Mantle, Inner core, Outer Core
B. The inner core, Mantle, Outer core, Crust
C. Crust, Mantle, Outer core, Inner Core
D. The inner core, Outer core, Mantle, Crust
2. Which layer plays the greatest role in the movement of tectonic plates?
A. Crust
B. Mantle
C. Outer core
D. Inner core

Consider this equilibrium: n29) + o2(g) + 2no(c).nitrogen gas and oxygen gas react when placed in a closed container. as the reaction proceeds towards equilibrium, what happens to the rate of thereverse reaction?

The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 9 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of tthe table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 9 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.

Ab c or d ? i’m not sure what the answer is