Qualification > Sciences
CHEM AND BIO HELP AND TIPS HERE
Baladya:
--- Quote from: Ivo on June 05, 2010, 07:46:32 pm ---Nah, good diagram and explanation! Thanks!!! ;D Just another thing, so electrons flow from the negative pole to the positive pole through the external circuit in wires, whereas ions move through the electrolyte?
--- End quote ---
yes
Vin:
--- Quote from: Nidzzz on June 05, 2010, 07:31:39 pm ---can any 1 exactli show hw u do we this question
Draw a diagram to show the arrangement of the valency electrons in one molecule
of the covalent compound hydrogen sulphide.
Use o to represent an electron from a sulphur atom.
Use x to represent an electron from a hydrogen atom
:-\
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Hydrogen Sulfide = H2S
H - 1
S - 2, 8, 6
would be something like..
oo
o o
H S H
x x
oo
$H00t!N& $t@r:
can some1 pls explain why theres no reaction when potassium hydroxide decomposes :-\
Vin:
--- Quote from: 7ooD on June 05, 2010, 07:28:52 pm ---thx vin so anything above mg doesnt react wiz double bonds like alkenes but can u explain reason for that plz and for other question i meant q 5 c iii nov 07 just one more last thing can anyone upload a guide for finding limiting reagent from equation :D
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Have a look at this!
http://wiki.answers.com/Q/How_do_you_solve_limiting_reagent_problems
^^ a lot but read the starting part..
CatAly$t:
somebody pls explain to me this...
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