Crude oil is a mixture of many liquids. the crude oil enters the bottom of a tall column, where the mixture is heated. the substances rise up the column until they cool down and condense back to liquids.

the components of crude oil can be separated because of differences in which property?
a/density
b/magnetism
c/boiling point
d/physical state

Why is the bond angle in a water molecule less than the bond angle of methane? a. the central oxygen atom in water has two lone pairs of electrons, whereas the central carbon atom in methane has no lone pairs. b. the central hydrogen atom in water has one lone pair of electrons, whereas the central carbon atom in methane has two lone pairs. c. the central oxygen atom in water has four lone pairs of electrons, whereas the central carbon atom in methane has only one lone pair. d. the central oxygen atom exerts more repulsive force on surrounding atoms than the central carbon atom in methane does. reset next

How many grams of magnesium metal will react completely with 8.3 liters of 5.5m hcl? show all work

Which suspect most likely committed the robbery and how do you know