Select the statements that best describe the properties of an intramolecular Sn2 reaction mechanism.

a. stereospecific: 100% inversion of configuration at the reaction site

b. not stereospecific

c. bimolecular at rate-determining step

d. unimolecular at rate-determining step

e. first order

f. second order

g. rate is governed by steric effects

h. rate is governed by the stability of the carbocation that is formed

Ablock of mass m = 2.5 kg is attached to a spring with spring constant k = 790 n/m. it is initially at rest on an inclined plane that is at an angle of 28 degrees with respect to the horizontal, and the coefficient of kinetic friction between the block and the plane is k = 0.14. in the initial position, where the spring is compressed by a distance of a = 0.18 m, the mass is at its lowest position and the spring is compressed the maximum amount. take the initial gravitational energy of the block as zero. b) if the spring pushes the block up the incline, what distance, l, in meters will the block travel before coming to rest? the spring remains attached to both the block and the fixed wall throughout its motion.

If a simple machine reduces the strength of a force, what must be increased?

What causes the development of most clouds and precipitation in the atmosphere?