Scientists today know a great
deal about ocean floor topography. Only 50 years ago, however, most scientists
believed that the ocean floor was a flat and featureless environment. Which of the following technologies or tools played the largest role in altering this thinking?
A - seismometer
B - sonar
C - particle accelerator
D - magnetometer

Agas has a volume of 0.7 l at 300 mmhg. what would be the new volume at 900 mmhg

List the two type of transporst that the cell in orde to transport molecules acroos the membrane

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