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Chemistry Help HERE ONLY !!
unknown 101:
--- Quote from: kim on May 30, 2009, 02:14:01 pm ---hey guys wassup?
ok i hav a few questions
1-how does the structure of metal explain why it is malleable?
2-suggest an explanation why exposure to atmospheric pollution changes basic lead (11)carbonate into lead(11)sulphate
3-ethanol can be made from starch.this can be broken down by enzymes to simple sugars with formulae of the type shown
ho-(box)-oh
what other method changes starch into simple sugar?
sum1 help me
--- End quote ---
1) cuz when force is applied, the ion layers slip, but the delocalized electrons move into new positions preventing shattering
2)because atmospheric pollution may contain sulphuris acid( in acid rain) which reacts with the lead(II) carbonate forming
lead(II) sulphate + water + carbon dioxide
3)by acid hydrolysis ( boiling the starch with acid)
crypsAnity:
@ nid
Chemistry by Richard Harwood .. umm those typical books by cambridge??
crypsAnity:
yeah and ts k.. im not worrying much.. hehe i love chemmmm!! lol .. shouldnt say much .. may God help me revise well.. lol
nid404:
--- Quote from: kim on May 30, 2009, 02:14:01 pm ---hey guys wassup?
ok i hav a few questions
1-how does the structure of metal explain why it is malleable?
2-suggest an explanation why exposure to atmospheric pollution changes basic lead (11)carbonate into lead(11)sulphate
3-ethanol can be made from starch.this can be broken down by enzymes to simple sugars with formulae of the type shown
ho-(box)-oh
what other method changes starch into simple sugar?
sum1 help me
--- End quote ---
1.force between particles is strong but non-directional. The layers in the metal can slip and new bonds can form, which is why they r malleable.
2.i think it's a simple reaction between the two. sulphate displaces the carbonate
3.acid hydrolysis of starch
thukon:
@ nid. Thanks.
I have another question. It says simple sugars are shown by HO-[ ]-OH. So are they diols? And does this mean that all diols are simple sugars? Or does it mean that all simple sugars are diols?
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