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  1. mennakhaled

    chemistry 1c

    that's wrong! it 's Na+e--->Na and 2CL- - 2E --->CL2 !!!
  2. mennakhaled

    chemistry 1c

    Draw to squares the second is starting in the middle of the first one and join between them with lines thats how to draw the cube
  3. mennakhaled

    chemistry 1c

    It's easy just draw a cuboid and draw empty large balls at the vertices and in the middle and black small balls between each two large balls and and just join them :)
  4. mennakhaled

    chemistry 1c

    which ion has given the green ppt?
  5. mennakhaled

    chemistry 1c

    hahahaha i will ;) do the same :)
  6. mennakhaled

    chemistry 1c

    That's so cool (A) Thanks :)
  7. mennakhaled

    chemistry 1c

    wow cool thanks:)
  8. mennakhaled

    chemistry 1c

    don't you know any news about the grades boundary *chemistry* i hope getting star but am losing more than ten marks :/
  9. mennakhaled

    chemistry 1c

    what you guys did in the sillicon question i wrote it has strong covalent bonds between molecules and need high energy to overcome because it's giant macromolecule and silicon is metalloid which have high melting point
  10. mennakhaled

    Grades boundary for CIE English Examinations!

    Heyyy(: i want to the grade boundry for english examinations CIE :/ Iam hoping to get a good grade
  11. mennakhaled

    chemistry 1c

    so-.-?
  12. mennakhaled

    chemistry 1c

    no sorry but if you wanna ask any question we can discuss it and answer it
  13. mennakhaled

    chemistry 1c

    i wrote it's free of minerals and salts and it's pure water
  14. mennakhaled

    chemistry 1c

    i got it 1.2 tonnes too
  15. mennakhaled

    chemistry 1c

    to form slang to remove impurites
  16. mennakhaled

    chemistry 1c

    what about x in the end of the exam =7?
  17. mennakhaled

    chemistry 1c

    goggles if the water while heating splashed out
  18. mennakhaled

    chemistry 1c

    i think yes, i wrote it reacts with silver nitrate and also wrote a stupid part it is concentrated lol i dunno how i wrote it i think we will get marks for the first part
  19. mennakhaled

    chemistry 1c

    iam amazing lol! thanks so much :)
  20. mennakhaled

    chemistry 1c

    Replay pls:s
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