Qualification > Sciences
Chemistry paper 1 help
The Golden Girl =D:
--- Quote from: blackberry on May 24, 2010, 05:59:15 pm ---y doesnt copper react directly wid hcl to form copper chloride?
--- End quote ---
cuz copper is below hydrogen in the reactivity series ...it can't displace Hydrogen ..therefore ..no reaction ;)
Weaam:
i know im asking too much, im just panicking real hard :-[
so can anyone please tell me the products when:
Acid + Metal -->
Acid + Base -->
Acid + Metal Carbonate -->
How metal nitrates breakdown
and how the boiling and melting points change down group of group VII
Really sorry for the trouble :(
blackberry:
--- Quote from: the golden girl on May 24, 2010, 06:01:19 pm ---cuz copper is below hydrogen in the reactivity series ...it can't displace Hydrogen ..therefore ..no reaction ;)
--- End quote ---
thank you!!!this question's been roaming on my mind since 6 months!!!
The Golden Girl =D:
--- Quote from: weaam on May 24, 2010, 06:03:09 pm ---i know im asking too much, im just panicking real hard :-[
so can anyone please tell me the products when:
Acid + Metal -->metal salt + hydrogen
Acid + Base -->metal salt+ water
Acid + Metal Carbonate -->metal salt +carbon dioxide+water
How metal nitrates breakdown
and how the boiling and melting points change down group of group VII
Really sorry for the trouble :(
--- End quote ---
as we go down the group of halogen , m.p. and b.p. is increasin
metals of group 1 , well they give u following:
metal nitrate ( exceot for Li)--> metal nitrite + oxygen
metals for group two (and Li) and transition metals give u :
metal nitrate --> metal oxide + nitrogen gas + oxygen
(remeber group TWO means TWO gases ...group ONE means ONE gas given off ;) )
don't panic ...relax and have faith and god and have sonfidence in urself mate ;)
The Golden Girl =D:
--- Quote from: blackberry on May 24, 2010, 06:07:18 pm ---thank you!!!this question's been roaming on my mind since 6 months!!!
--- End quote ---
i used to too :P..but then i asked and said ( i'm gonna get to the bottom of this and i did ::))
np 8)
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