How do you seperate these folowing mixtures?
2. iron and sulfur
3. sand and water
4. yellow and red components in an ink mixtures
5. brown and green colored M&M's
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Answer:
1. Soak the mixture in water, let the sugar dissolve and then just pour the sugary water in to a cup. Let all the water dry away, you'll be left with just sugar.
2. (if the two things don't react first) Use a magnet to grab the iron out. Or if you're adventurous, melt the sulfur into a liquid and strain it out.
3. Use a sieve to strain the water out (or distill it and condense the water!)
4. blot the ink mix on to filter paper, in the middle. hold one end of the paper in water (or a strong solvent like acetone). Let the water/solvent get soaked up the paper and move past the inks. The two inks will not be 'carried' by the liquid (mobile phase in chromatography speak) at the same speed and the two colours will separate in time.
5. use your fingers and eyes to accuratley identify the differences in light radiating from the candies, then grasp all the M&M's of one colour and move them to a new bowl.
1. u may use evaporation
2. magnet
3. decantation and filtration
4. chromatography
5. well, just pick it..haha
:-)
1) mix the mixture into water to dissolve the sugar and filter the solution to get the sand
2) use a magnet to attract the iron out, what's left is the sulfur
3) filtration: place a filter paper onto a funnel and pour the mixture through the funnel into a beaker
4) chromatography: place a drop of ink mixture onto a chromatography paper & soak it into ethanol. the color pigments will be separated
5) well, for this you may have to use your fingers
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