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Flashcards

8E

HRYN red 8Summer Exam English 41 cards

what does a still diagram look like?

Cards in this deck (41)

  1. 1what is a mixture?one or more things together
  2. 2what is filtering?separating a mixture
  3. 3residuethe slid trapped in filter paper
  4. 4what can filtering not sepatate?dissolved solids
  5. 5what is a soluble?a substance that dissolves
  6. 6what is a insoluble?something that will not disslove
  7. 7what is a solution?a solid dissolved in a liquid together
  8. 8what is a solvent?in a solution a solvent is the liquid
  9. 9what is a solute?the solid in the solution
  10. 10what is a solution always?transparent if it is cloudy or opaque it is not a sloution
  11. 11what is the mass of the solution?the solvent plus the solute equal the solution.
    solvent+solute=solution
  12. 12what can we use to explain what happens when something dissolves?particles
  13. 13what happens when a solid disolves into a liquid? particlesthe particles come away from each other and mix with the solvent.
  14. 14why cant the particles of a solid be trapped by the filtering paper?the partilces are too small to be trapped by the filter paper and that is why filtering cannot be separated from a disssolved solid from a solution.
  15. 15what is saturated?when a solid can no longer dissolve.
    it contains as much solid as it possibly can.
    otherwise it would just sink to the bottom and not disolve.
  16. 16what effeccts the amount of solid dissolvestempature as it more solid dissolves in hotter water
  17. 17what does water also have in it?chemicals from rocks as the water flows over them and these dissolved chemicals give the water its taste.
  18. 18how can we see what chemicals there are in water?we evaporate the water and leave behind the chemicals that were dissolved in it.
  19. 19saltsthe chemicals that are left behind from water.
  20. 20what are quality standards?standards that are set by the government to make sure the drinking water is safe and is why samples of water need to be taken to labs recently to make sure its safe.
  21. 21what is hard water?water with certain chemicals that stop soap making a later/layer
  22. 22what is soft water?water that does not contain certain chemicals to stop soap from making layers.
    so water that lets soap make layers
  23. 23what is rock salt? and how do u get it?mined salt in underground large caverns. can also be removed by pumping water into the ground. water dissolves into the water which then is pumped back to the surface and is heated to evaporate the water.
  24. 24what is Chromatography?is a way of separeating diffrent substances that are dissolved in a solution. can be used to find what coulor are mixed together.
  25. 25what is chromatography maninly used for?for police and there investagation slike finding samples of blood or skin and comparing them with a suspect. if it is a match, thery were at the scene of the crime.
  26. 26what is pure water?water that contains nothing but water
  27. 27what is distillation?separating a solvent form solutes by eveaporating the solvent and then condensing it.
  28. 28what does a still diagram look like?what does a still diagram look like?
  29. 29how do people get water that live by the sea?they use big pwerplants and remove the salt by desalination and then goes through pipes to your homes.
  30. 30how do other countries get there water?through rivers, dams...
  31. 31what are compounds?substances that can be split up into simpler substances
  32. 32what are effects of lime water on oxygen?nothing
  33. 33what are the effects of lime water with hydrogen?nothing
  34. 34what is the effect of lime water with carbon dioxide?it makes the water milky
  35. 35what is the effect of a burning splint with carbon dioxide?it goes out/puts the flame out
  36. 36what is the effect of a burning splint with oxygen?it glows brighter
  37. 37what is the effect of a burning splint with hydrogen?it makes a squeeky pop!
  38. 38what happends if there is sulfat? in a liquid?the liquid will go a white cloudy substances
  39. 39what is the flame test?testing for a substance depending on the colour it comes out in the fire
  40. 40what is the filtration progress importance?to provide clean healthy water and to reduce desises more than 80%
  41. 41what is the importace of chlorination?to kill microbes that cause bad diseases
    good for our teeth

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Description
8Summer Exam (Science) Flashcards on 8E, created by HRYN red on 22/04/2018.
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HRYN red
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  • Created by HRYN red · Nov 7, 2017
  • Copied by HRYN red · Apr 22, 2018
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