« previous next »
Pages: 1 ... 4 5 [6] 7 8 ... 25   Go Down

Author Topic: CHEMISTRY PAPER 1 HERE  (Read 38405 times)

....

  • Guest
Re: CHEMISTRY PAPER 1 HERE
« Reply #75 on: June 11, 2009, 10:56:52 am »
Quote from: simba on June 11, 2009, 10:46:57 am
hey guyz will somebody help me in this question number 25 november 06.....

Copper is low in the reactivity series, and doesn't react with acids or steam/cold water.
Magnesium reacts with steam and acids but not with cold water unless crushed.
Calcium reacts with all, acids, steam and cold water.
Thus, only calcium and magnesium react to form hydrogen.
Logged

Offline Priceless

  • SF Master
  • ******
  • Posts: 2071
  • Reputation: 1591
Re: CHEMISTRY PAPER 1 HERE
« Reply #76 on: June 11, 2009, 10:57:07 am »
cmon....lol....sounds wrong?....just go wid ur facts n knowledge ;) :D
Logged
Don't say "God I have tooo many problems" but say "Problems I have God!"   Gud Luck 2 all 4 xams. Hope v all du well.....fingers crossed LOL

Offline nourz

  • Newbie
  • *
  • Posts: 3
  • Reputation: 0
Re: CHEMISTRY PAPER 1 HERE
« Reply #77 on: June 11, 2009, 10:59:30 am »
Quote from: shaxter8 on June 11, 2009, 04:33:11 am
GUYS, WHERE CAN I GET CHEMISTRY PAPER1 PAST PAPERS FROM 1993-2002?

did u get the markschemes for them? if yes from where? i rlyy need them!
Logged

Offline MR.BooMBastiC

  • SF Farseer
  • *******
  • Posts: 4573
  • Reputation: 2621
  • Gender: Male
Re: CHEMISTRY PAPER 1 HERE
« Reply #78 on: June 11, 2009, 11:00:23 am »
in da last question of yellow oxide..
there should be another option
E."NONE OF THE ABLOVE"

and i would choose E...lolzzzzzzzzz

wr r u cocky......... :(
Logged

....

  • Guest
Re: CHEMISTRY PAPER 1 HERE
« Reply #79 on: June 11, 2009, 11:00:36 am »
Quote from: Priceless on June 11, 2009, 10:54:50 am
yes shafiq...im pretty sure abt sodium.....ionic compounds is da bonding b/w a metal n a non-metal....

n i-insane.....lol....i guess itz iron den but not sure though......thnkz though...all da best :)
All the best to you too!
Logged

Offline Priceless

  • SF Master
  • ******
  • Posts: 2071
  • Reputation: 1591
Re: CHEMISTRY PAPER 1 HERE
« Reply #80 on: June 11, 2009, 11:03:10 am »
lol....mr bombastic....i thnk i wud hv don't da same thng...rite behind ya :P :D

n Take care guyz....all da best 2 u all ;)
Logged
Don't say "God I have tooo many problems" but say "Problems I have God!"   Gud Luck 2 all 4 xams. Hope v all du well.....fingers crossed LOL

Offline girl_92

  • SF Geek
  • ****
  • Posts: 318
  • Reputation: 152
  • Gender: Female
Re: CHEMISTRY PAPER 1 HERE
« Reply #81 on: June 11, 2009, 11:04:21 am »
Quote from: shafiq_92libra on June 11, 2009, 10:51:42 am
Quote from: sweetest angel on June 11, 2009, 10:25:35 am
1) SODIUM SINCE ITS DA ONLY METAL
2) "D" SINCE hydroxide is colourless gas...copper pink solid!!
3)can u post the paper...i remeba doin' it buh cnt give xact explanation unless sure of answer!

you ppl sure
i think it shud b chlorine cos hcl is an ionic compound in liquid
dude no offence but r u sure u r appearin for a chem paper 2morrow because it doesnt luk like how can hcl be ionic
« Last Edit: June 11, 2009, 11:10:10 am by madee »
Logged
some people sleep to dream while othrs wakeup to follow dem im the second type how abt u

Offline astarmathsandphysics

  • SF Overlord
  • *********
  • Posts: 11271
  • Reputation: 65534
  • Gender: Male
  • Free the exam papers!
Re: CHEMISTRY PAPER 1 HERE
« Reply #82 on: June 11, 2009, 11:04:37 am »
Quote from: nourz on June 11, 2009, 10:59:30 am
Quote from: shaxter8 on June 11, 2009, 04:33:11 am
GUYS, WHERE CAN I GET CHEMISTRY PAPER1 PAST PAPERS FROM 1993-2002?

did u get the markschemes for them? if yes from where? i rlyy need them!

check your email in half an hour
Logged

Offline shafiq_92libra

  • SF Citizen
  • ***
  • Posts: 238
  • Reputation: 478
Re: CHEMISTRY PAPER 1 HERE
« Reply #83 on: June 11, 2009, 11:06:18 am »
lol im sure im appearing lol
im great wid organic and most of da hard stuff
bt i suck at acids bases and da ionic stuff ><
bt hcl is ionic
Logged
Manifest Destiny

Offline girl_92

  • SF Geek
  • ****
  • Posts: 318
  • Reputation: 152
  • Gender: Female
Re: CHEMISTRY PAPER 1 HERE
« Reply #84 on: June 11, 2009, 11:08:10 am »
Quote from: shafiq_92libra on June 11, 2009, 11:06:18 am
lol im sure im appearing lol
im great wid organic and most of da hard stuff
bt i suck at acids bases and da ionic stuff ><
bt hcl is ionic
ionic bonds are formed onli between metals n non metals n HCL is not ionic bcoz neither is hydrogen a metal n nor is chlorine
Logged
some people sleep to dream while othrs wakeup to follow dem im the second type how abt u

Offline shafiq_92libra

  • SF Citizen
  • ***
  • Posts: 238
  • Reputation: 478
Re: CHEMISTRY PAPER 1 HERE
« Reply #85 on: June 11, 2009, 11:09:40 am »
okay but hcl does dissosciate into ions
Logged
Manifest Destiny

Offline shafiq_92libra

  • SF Citizen
  • ***
  • Posts: 238
  • Reputation: 478
Re: CHEMISTRY PAPER 1 HERE
« Reply #86 on: June 11, 2009, 11:11:19 am »
but you guys are ryt sodium is da answer >< anyways i shud study ciao ppl
Logged
Manifest Destiny

Offline girl_92

  • SF Geek
  • ****
  • Posts: 318
  • Reputation: 152
  • Gender: Female
Re: CHEMISTRY PAPER 1 HERE
« Reply #87 on: June 11, 2009, 11:11:42 am »
Quote from: shafiq_92libra on June 11, 2009, 11:09:40 am
okay but hcl does dissosciate into ions
i didnt get u how is tht suppose to make it an ionic compounds all strong acids disassocite completely in to der ions tht means all acids are ionic compounds
Logged
some people sleep to dream while othrs wakeup to follow dem im the second type how abt u

....

  • Guest
Re: CHEMISTRY PAPER 1 HERE
« Reply #88 on: June 11, 2009, 11:14:31 am »
All i remember is, we once, in paper 3, had to draw a sodium hydride structure, with formula NaH. So that should be ionic then.
Logged

Offline girl_92

  • SF Geek
  • ****
  • Posts: 318
  • Reputation: 152
  • Gender: Female
Re: CHEMISTRY PAPER 1 HERE
« Reply #89 on: June 11, 2009, 11:15:51 am »
Quote from: i-insane on June 11, 2009, 11:14:31 am
All i remember is, we once, in paper 3, had to draw a sodium hydride structure, with formula NaH. So that should be ionic then.
yes it is
Logged
some people sleep to dream while othrs wakeup to follow dem im the second type how abt u
Pages: 1 ... 4 5 [6] 7 8 ... 25   Go Up
« previous next »