Me quick by answering these science questions.

1. why is it better to use data from three or more seismic stations to find the epicenter of an earthquake?

2. list the properties of p waves and s waves

3. what conclusion would you draw if a seismogram from a particular seismic station showed only p waves?

For the following dehydrohalogenation (e2) reaction, draw the zaitsev product(s) resulting from elimination involving c3–c4 (i.e., the carbon atoms depicted with stereobonds). show the product stereochemistry clearly. if there is more than one organic product, both products may be drawn in the same box. ignore elimination involving c3 or c4 and any carbon atom other than c4 or c3.

Describe the forces both attractive and repulsive that occur as two atoms move closer together.

What is a substance? a. a physical property of matter b. a chemical property of matter c. an element or compound that cannot be physically separated d. characteristics used to tell the difference between mixtures