based on your previous experiences, list the following substances in order from the lowest density to the highest. explain your reasoning. lead pipe, water, pine 2" by 4" board, styrofoam peanuts

In a floral arrangement, the focal area is often

1. list three scientific reasons cockroaches may fly.

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?