Consider a fuel cell that uses the reaction of ethanol with oxygen to produce electricity. ch 3 ch 2 oh ( l ) + 3 o 2 ( g ) ⟶ 2 co 2 ( g ) + 3 h 2 o ( l ) use thermodynamic data to determine the value of e ∘ cell for this cell at 25 °c .

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line

Once similarity and one difference between a mixture of elements and a mixture of compounds

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.