What evidence is there for plate tectonics? A. Topographic maps that show elevation.
B. Evidence from drilling into the Earth.
C. Satellite images that show the outlines of the plates.
D. The geologic events that occur at plate boundaries such as earthquakes and volcanic eruptions.
2

How many grams of ammonia would be produced by the decomposition of 16.93 mlof hydrazine? (the density of hydrazine is 1.021g/ml)

Ablock of aluminum is dropped into a graduated cylinder with an initial volume of water at 75ml and the volumes rises to 90ml. if the block has a mass of 40.5 g what is its density ?

Assignment directions: pick one of the following chemists and perform a bit of research on him/her. answer the following questions. alice hamilton             rosalind franklin marie curie             gertrude b. elion ada yonath             henry cavendish robert boyle             antoine lavoisier mario j. molina             svante arrhenius