The mechanism for the reaction described by the equation 2 N 2 O 5 ( g ) ⟶ 4 NO 2 ( g ) + O 2 ( g ) 2N2O5(g)⟶4NO2(g)+O2(g) is suggested to be ( 1 ) N 2 O 5 ( g ) k 1 ⇌ k − 1 NO 2 ( g ) + NO 3 ( g ) ( 2 ) NO 2 ( g ) + NO 3 ( g ) k 2 −→ NO 2 ( g ) + O 2 ( g ) + NO ( g ) ( 3 ) NO ( g ) + N 2 O 5 ( g ) k 3 −→ 3 NO 2 ( g ) (1)N2O5(g)⇌k−1k1NO2(g)+NO3(g)(2)NO2 (g)+NO3(g)→k2NO2(g)+O2(g)+NO(g)(3)N O(g)+N2O5(g)→k33NO2(g) Assuming that [ NO 3 ] [NO3] is governed by steady-state conditions, derive the rate law for the production of O 2 ( g ) .

One student said that the investigation was not valid (a fair test). write a plan for the investigation that includes improvements to the method and apparatus

Why do the strengths of london (dispersion) forces generally increase with increasing molecular size? choose one: a. heavier atoms have stronger attractions for each other than lighter atoms. b. dispersion forces are all equal in magnitude; there is no size dependence. c. dispersion forces arise from the attraction between the nuclei of atoms, and larger molecules have larger nuclei. d. dispersion forces arise from dipoles caused by the electron distribution being distorted. larger molecules have more electrons and, therefore, more distortions and a bigger force. e. dispersion forces depend on distance. larger molecules are farther apart and so the forces are smaller.

What makes up a film badge? layers of photographic film covered in black paper. an electrolyte paste spread across a plastic sheet. a thin film of salts and other chemicals on clear acetate. a panel of photographic film exposed to the air. ✓