Qualification > Sciences
CHEM AND BIO HELP AND TIPS HERE
MasterMath:
--- Quote from: mdwael on June 06, 2010, 02:56:40 pm ---metal+water=metal hydroxide the hydrogen? in summer 2003 p3 it says its metal hydroxide and hydrogen but why not metal oxide?theyre talking about metals caesium barium and lanathium
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Any metal Above Ca reacts to give a hydroxide and H2.. im talking about the order in reactivity series..
Raywin:
--- Quote from: Helium on June 06, 2010, 02:14:26 pm ---All the same......
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THANKSS.. ;D
CatAly$t:
--- Quote from: Helium on June 06, 2010, 02:38:49 pm ---Yes when having a balanced equation it's a ratio..
Get it, i can post an example :)
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what the hell r u talking abt??
Vin:
--- Quote from: Adzel on June 06, 2010, 02:54:42 pm ---Can someone please draw the structure of the alloy BRASS :)
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^^Basically for ALL alloys(depending upon number of metals), By the way you don;t have to know the structures.
Ivo:
--- Quote from: Raywin on June 06, 2010, 02:09:27 pm ---Guys, a silly doubt :P Whats the difference between Heat, Roast and burn in air.. ??? Thanks.
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Roasting in air (just means heating very strongly in air).
Heating is not as strong as roasting (by miles).
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