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C2 Topic 3

ljo99 6 preguntas

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Preguntas del test (6)

  1. 1What are the properties of diamond?
    1. Afour strong covalent bonds
    2. Bthree strong covalent bonds and one weak bond
    3. Cthree dimensional network structure
    4. Dlayered structure
    5. Every hard
    6. Flayers slide and rub off easily
    7. Gpoor electrical conductor
    8. Hgood electrical conductor
    9. Iused in cutting tools
    10. Jused to make electrodes and lubricate moving parts
  2. 2Label the diagramImagen de la pregunta 2
    1. Astrongly
    2. Bweakly
    3. Chigh
    4. Dlow
    5. Ewater
    6. Fcharged
    7. Gno charged
    8. Hgraphite
    9. Icarbon
    10. Jdoesn't
    11. Kdoes
    12. Lweak
    13. Mstrong
  3. 3Miscible liquids are liquids that do not mix but separate into layers
    1. AVerdadero
    2. BFalso
  4. 4How would you separate a miscible liquid?
    1. Aa separating funnel
    2. Bfractional distillation
    3. Cdistillation
  5. 5Oxygen and nitrogen gas are produced by [blank_start]fractional[blank_end] distillation of air:
    -[blank_start]dust[blank_end], water [blank_start]vapour[blank_end] and carbon dioxide are removed from the air
    -air is cooled to -[blank_start]200[blank_end]c and all gases become liquids
    -the temperature is gradually allowed to rise, and at about -[blank_start]196[blank_end]c [blank_start]nitrogen[blank_end] vaporises and is collected as a gas
    -the remaining liquid is mostly [blank_start]oxygen[blank_end]
    1. Afractional
    2. Bdust
    3. Cvapour
    4. D200
    5. E196
    6. Fnitrogen
    7. Goxygen
  6. 6[blank_start]Chromatography[blank_end] can be used to separate and i[blank_start]dentify[blank_end] components in substances such as colours in foods.
    Different colours move different [blank_start]distances[blank_end] up the paper. A developed [blank_start]chromatogram[blank_end] shows a spot for each substance in a mixture.
    The distance travelled by a component is described using Rf values; Rf values = distance travelled by [blank_start]component[blank_end] / distance travelled by [blank_start]solvent[blank_end]
    1. AChromatography
    2. Bdentify
    3. Cdistances
    4. Dchromatogram
    5. Ecomponent
    6. Fsolvent

Información

Descripción
GCSE (C2) Triple Science Test sobre C2 Topic 3, creado por ljo99 el 14/04/2016.
Autor
ljo99
Idioma
English
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