Giraffes are herbivores that initially had shorter necks. they are found in grasslands and areas where trees grow tall. to feed on leaves from y’all trees, giraffes has to stretch their necks. this behavior paved the way for of giraffes with longer necks. a giraffes long neck is a adaption

Evaluate this exponential expression,8. (2 + 3)2 – 42

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

Achemist has dissolved a certain substance in water. the chemist knows that more of the substance could be dissolved into the water before it stops dissolving. therefore