Think about the chemicals present in your home, particularly those in your cleaning supplies, under your sink, or in your garage. Describe one of those chemicals and identify how it may be harmful to a person or the environment. Describe what color and GHS icon should be applied to all labeling for this substance.

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?