What conclusion can you draw when you compare the density of the materials found on Earth's surface (.3000 kg/m3) with the density of Earth as a whole (0.5400 kg/m3)?

For which one of the following reactions is the value of δh° rxn equal to δh° f for the product? a. 2 h2 (g) + o2 (g) → 2 h2o (l) b. n2 (g) + o2 (g) → 2 no (g) c. 2 h2 (g) + o2 (g) → 2 h2o (g) d. h2o (l) + 1/2 o2 (g) → h2o2 (l) e. none of the above

What three things determine the shape and size of a puddle when water is poured out onto a surface

Identify the electromagnets with poles that are reversed from the electromagnet shown above