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- 1. Multiple Choice
Name the separation technique used to recover the salt from seawater.
evaporation
distillation
filtration
decanting
- 2. Multiple Choice
Two or more substances mingled together, but not chemically combined are known as a __________
residue
solution
distillate
mixture
- 3. Multiple Choice
In a coffee machine, the ground coffee is separated from the coffee solution by using..
sand paper
filter paper
toilet paper
tissue paper
- 4. Multiple ChoiceWhich one of the following would you use to separate sand from iron filings?a bar magnetfilter paperchromatography paperalum
- 5. Multiple Choice
Water and alcohol are easily separated by distillation because of their ______________
different melting points
different colours
different densities
different boiling points
- 6. Multiple ChoiceMaking a mixture results in ___________________ only.chemical reactionsseparate partsphysical changestwo subtances
- 7. Multiple ChoiceTo separate iron filings and sulfur what method should you use?
filtration
sorting
magnet
boiling
- 8. Multiple Choice
Mixtures of dyes can be separated by means of..
crystallization
sublimation
chromatography
sedimentation
- 9. Multiple ChoiceWhich separation technique uses the apparatus shown in the diagram?filtrationcrystallisationdistillationchromatography
- 10. Multiple ChoiceA saturated solution:is always coldas a lot of water in itwill not dissolve any more solventwill not dissolve anymore solute
- 11. Multiple ChoiceWhat is the process of separating at which the components move at different rates?centrifugationchromatographyheatingdecantation
- 12. Multiple Choice
Name the separation technique shown in the diagram.
evaporation
distillation
filtration
- 13. Multiple Choice
Solid particles which are left on filter paper after filtration is called the
filtrate
residue
solvent
solute
- 14. Multiple Choice
Pure water can be separated from inky water by simple distillation because:
Water and ink have different boiling points
Water evaporates leaving the ink particles behind
Ink evaporates leaving the water behind
- 15. Multiple Choice
What is the correct order for obtaining salt from a mixture of sand and salt?
Dissolving in water - filtration - evaporation
Evaporation - filtration - dissolving in water
Filtration - dissolving in water - evaporation
- 16. Multiple Choice
If you wanted to make pure drinking water from sea water, what process would you use?
Filtration
Distillation
Evaporation
Chromatography
- 17. Multiple Choice
What is the name of the liquid that ends up in the beaker after the process of filtration?
Residue
Filtrate
Solution
Mixture
- 18. Multiple Choice
What is the boiling point of ethanol?
65 degrees
73 degrees
78 degrees
100 degrees
- 19. Multiple Choice
Name the piece of apparatus labelled A.
Boiling flask
Biglie Condenser
Liebig Condenser
Beaker
- 20. Multiple Choice
Which 3 things have been set up incorrectly in this diagram?
beaker is too high
water in/out wrong way
heat source is positioned incorrectly
flask too full
thermometer in sea water
- 21. Multiple Choice
These are the results of a chromatography experiment.
Which colour has the most dyes in it?
blue
green
yellow
brown
purple
- 22. Multiple Choice
These are the results of a chromatography experiment.
Which dye appears in most colours?
blue
green
yellow
brown
purple
- 23. Multiple Choice
What is 6 and 7?
6: water in / 7: water out
6: water out / 7: water in
- 24. Multiple Choice
Bonus: What is the name of apparatus 2?
conical flask
flat-bottom flask
round-bottom flask
long-neck flask
wide-neck flask
- 25. Multiple ChoiceThis picture represents:ElementCompoundMixture of ElementsMixture of Compounds
- 26. Multiple ChoiceNo matter what you do, sand will not dissolve in water, sand is _________ ?dissolvedsolubleinsolubleaqueous
- 27. Multiple Choice
What is A?
solute
solvent
solution
solid
- 28. Multiple Choice
What is C?
solute
solvent
solution
solid
- 29. Multiple Choice
Which ink is most soluble?
Blue
Red
Yellow
Green
- 30. Multiple Choice
What is another name for combustion?
Burning
Reduction
Displacement
- Answer choicesTagsAnswer choicesTags