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

Clouds form when water vapor to form small droplets. a. humidifies b. condenses c. evaporates d. precipitates

Atank contains 240 liters of fluid in which 10 grams of salt is dissolved. brine containing 1 gram of salt per liter is then pumped into the tank at a rate of 6 l/min; the well-mixed solution is pumped out at the same rate. find the number a(t) of grams of salt in the tank at time t.

Chlorophyll a had the molecular formula c55h72mgn4o5 how many atoms are in this molecule