Sally wants to see which fertilizer makes tomato plants grow the tallest. she use 3 types (a, b, c) and leaves one group in soil without any fertilizer. identify the independent variable, dependent variable, and the control group in this experiment.

Which type of bonding involves the complete transfer of a valence electron from a less electrogrative atom to a more electronegative one

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 of the dna typing techniques do you think you would choose if you had to analyze a dna sample? why?