Groundwater was contaminated by a spill, and benzene and vinyl chloride remain in the water, each at a concentration of 2.0 mg/L. The groundwater is used as a potable water supply for a town of 75,000 people. Calculate the LADD for a male who weighs 80 kg and who lives in this town for 70 years, and drinks only the groundwater with no removal of these chemicals.

Easy definition for atom and atomic mass

Match the following vocabulary terms to their definitions. 1. amount of energy required to change 1 gram of material from the solid to the liquid state at its melting point 2. a measure of the kinetic energy of the particles of a substance 3. the amount of heat energy required to raise the temperature of 1 gram of liquid water from 14.5°c to 15.5°c 4. amount of energy required to change 1 gram of material from the liquid to the gaseous state at its boiling point 5. the amount of energy required to change 1 gram of a substance 1°c a. temperature b. latent heat of vaporization c. latent heat of fusion d. calorie e. specific heat

Given that 1 mi = 1760 yd, determine what conver- sion factor is appropriate to convert 1849 yd to miles; to convert 2.781 mi to yards.