24. Perform the following metric-English conversions: A. 800.0 m to yards:
B. 0.375 kg to lb:
C. 1250 mL to gallons:
D. 1.52 x 10^3 ds to min:

Transportation is the largest single source of air pollution in the united states. air pollution can harm the environment and human health. which technology could offer a solution to this problem? mufflers that reduce noise motors that run on electricity tires that improve gas mileage

Based on its chemical properties, identify the position of each chemical family on the periodic table.

Consider the following reactions. (note: (s) = solid, (l) = liquid, and (g) = gas.) mg(s) + ½o2(g) → mgo(s) + 146 kcal/mole h2(g) + ½o2(g) → h2o(g), δh = -57.82 kcal/mole what type of reaction is represented by the previous two examples?