What is the charge for a nitrogen ion?

A) 3-

B) 1-

C) 2-

D) 2+

In apex! a liquid heated beyond a certain temperature becomes

Light waves can move through , but they travel fastest when they move through a(n) .

The activation energy for the reaction no2(g)+co2(g)⟶no(g)+co(g) is ea = 300 kj/mol and the change in enthalpy for the reaction is δh = -100 kj/mol . what is the activation energy for the reverse reaction?