4. Classify the following sedimentary rocks as clastic, chemical, or biochemical:
conglomerate, rock gypsum, fossiliferous
limestone, and rock salt.

Butadiene undergoes a reaction at a certain temperature in the gas phase as follows: 2c4h6(g) --> c8h12(g) the following data were collected for this reaction: time (min) [c4h6] (m) 0 0.36 15 0.30 30 0.25 48 0.19 75 0. determine the order of the reaction and the rate constant. 1st order and k = 4.3x10 -4 s-1 1st order and k = 2.3x10-4 s-1 2nd order and k = 4.3x10-4 s-1 2nd order and k = 2.3x10-4 s-1 zero and k = 4.3x10-4 s-1

Which three statements represent the benefits of performing experiments using computer simulations?

Which of the following is the molecular formula for a simple sugar? a. cooh b. h2o c. oh d. c6h12o6