Draw the lewis structure of the azide ion that minimizes formal charge (it does not form a triangle). draw the molecule by placing atoms on the grid and connecting them with bonds. include all lone pairs of electrons. use square brackets to denote the overall charge.

Asolid cylinder is concentric with a straight pipe. the cylinder is 0.5 m long and has an outside diameter of 8 cm. the pipe has an inside diameter of 8.5 cm. the annulus between the cylinder ad the pipe contains stationary oil. the oil has a specific gravity of 0.92 and a kinematic viscosity of 5.57 x 10-4 m2/s. most nearly, what is the force needed to move the cylinder along the pipe at a constant velocity of 1 m/s?