From the following data ,determine of formation for diborane(B2H2(g), at 25 B2H2(g) 3O2(g)(B2O3(S)3H2O(g) ,=-1941kJ
2B(s) O2(g) (B2O3(s) ,=-2368 kJ
H2(g) O2(g) (H2O(g) , =-241.8 kJ​

Motivation cannot be developed with practice; a person either possesses it or they do not.

In which layer of earth do most earthauakes occur a_ inner core b_outer core c_mantle d_crust

Diffraction is when light is bent around obstructions. which of the these observation about clouds would indicate diffraction? a) after rain storms, you can sometimes see rainbows. b) clouds are white or gray and cannot be seen through. c) on a cloudy day, the temperature tends to be cooler than a sunny day. d) the edges of dark clouds appear lighter. this