In this experiment, the (1. length of the track. 2. height of the track. 3. width of the track.) was intentionally manipulated. This was the independent variable. The dependent variable measured was the (1. speed of the car. 2. height of the track. 3. distance traveled.)

Which is the layer underground where all empty spaces are filled with a combination of air and water ?

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.

Which of the following methods uses the decay of atomic particles in an object to find its exact age? a. fossil dating b. geologic dating c. radioactive dating d. relative dating