En la combustión del butano c4h10 (g), éste se combina con el oxígeno o2 (g) del aire, transformándose en dióxido de carbono co2 (g) y agua h2o (l). a. escribe y ajusta la ecuación química. b. si se queman 150 g de butano, calcula cuántos gramos de oxígeno se necesitan para tener una combustión completa. c. cuántos moles de dióxido de carbono se forman

african americans demonstrated their newly found freedom by relocating often in search of relatives whom they had been separated from during slavery. others established schools to educate freed people and they built institutions such as churches and political organizations to advocate for their rights.

< > according to newton's third law of motion, forces always act in equal but opposite pairs. another way of saying this is for every action, there is an equal but opposite reaction.< >

a gas, having a molecular weight of 13 kg/kmol and a kinematic viscosity of 0.25 cm2/s, flows through a pipe 0.25 m internal diameter and 5 km long at the rate of 0.4 m3/s and is delivered at atmospheric pressure.