Crude oil is a mixture of many liquids. the crude enters the bottom of a tall column where it's heated the substances rise up the column until they cool down and condense back to liquids. the components of oil can be separated because of differences in which property

What does the symbol (–hfus) indicate in a phase change?

Elements in group 2 are all called alkaline earth metals. what is most similar about the alkaline earth metals?

Which of your 24 wells had indications that a chemical reaction occurred? how were you able to tell that a chemical reaction occurred? which of your 24 wells had indications that a physical reaction occurred? how were you able to tell that a physical reaction occurred? report on both mixing and evaporation. make a general statement about whether your hypotheses were validated or rejected. must your hypotheses be correct for this to be a successful laboratory?