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level: Separating mixtures

Questions and Answers List

level questions: Separating mixtures

Question	Answer
Is separating oxygen from water the same as separating parts from a mixture?	no
Is separating salt from sea water the same as separating parts from a mixture?	yes
Is separating oil from salad dressing the same as separating parts from a mixture	yes
Is separating iron from a collection of sand the same as separating parts from a mixture?	yes
Is separating sodium from a handful of salt the same as separating parts from a mixture?	no
Is separating dirt from water that is not clean the same as separating parts from a mixture?	yes
Which situation illustrates the quickest example of diffusion?	Opening a packet of coffee and letting the smell out
Which situation illustrates the slowest example of diffusion?	Placing a stone on top of another stone
Which of the following is a method of separating a mixture through filtration?	Separating a solid and a liquid by passing a mixture through a series of smaller and smaller openings; the liquid will pass through the holes and the solid will not.
Which of the following is a method of separating a mixture through evaporation?	Heating a solution until it becomes a gas, leaving behind the previously dissolved solid.
Which of the following is a method of separating a mixture through distillation?	Heating a liquid until it becomes a gas, then trapping and cooling the gas, leaving behind a separate solid and liquid.
Which of the following is a method of separating a mixture through chromatography?	Placing a substance on filter paper, putting the paper in a solvent and watching to see how, and how quickly, the substance and solvent reacts.