Classify the following substituents according to whether they are electron donors or electron acceptors relative to hydrogen by the resonance and the inductive mechanisms. a = acceptor d = donor n = no effect 1. Inductive effect d . Resonance effect a . 2. Inductive effect a . Resonance effect d . 3. Inductive effect a . Resonance effect d .

Which is the best for showing percentages of different types of cars sold(gas hybrid , electric , other ) in the united states ?

In a classical model of the hydrogen atom, the electron moves around the proton in a circular orbit of radius 0.053 nm. what is the electron's orbital frequency? what is the effective current of the electron?

Two charged particles, q1 and q2, are located on the x-axis, with q1 at the origin and q2 initially at x1 = 12.2 mm. in this configuration, q1 exerts a repulsive force of 2.62 µn on q2. particle q2 is then moved to x2 = 18.0 mm. what is the force (magnitude and direction) that q2 exerts on q1 at this new location? (give the magnitude in µn.)