Visible light comes from which one of the sun's layers?
O
A. The radiative zone
OB. The corona
O
C. The core
O
D. The photosphere
O
E. The convection zone

Nitric oxide (no) can be formed from nitrogen, hydrogen and oxygen in two steps. in the first step, nitrogen and hydrogen react to form ammonia: n2(g) + 2 h_2(g) rightarrow 2 nh_3 (g) delta h = -92. kj in the second step, ammonia and oxygen react to form nitric oxide and water: 4 nh_3(g) + 5 o_2(g) rightarrow 4no(g) + 6 h_2o(g) delta h = -905. kj calculate the net change in enthalpy for the formation of one mole of nitric oxide from nitrogen, hydrogen and oxygen from these reactions. round your answer to the nearest .

This classification of drug typically changes the brain's chemistry and reduces its ability to create its own endorphins.

In a copper wire, a temperature increase is the result of which of the following