Qualification > Sciences
Chemistry Help HERE ONLY !!
thukon:
@ kim. just take the average in a kind of way. If u know what i mean.
@ nid. Thanks a lot. I guess u logged off but ill ask anyway so anyone can reply. All simple sugars are called glycols? And do complex sugars like starch have any special names? or can i call them polymers?
unknown 101:
--- Quote from: thukon on May 30, 2009, 02:51:06 pm ---@ kim. just take the average in a kind of way. If u know what i mean.
@ nid. Thanks a lot. I guess u logged off but ill ask anyway so anyone can reply. All simple sugars are called glycols? And do complex sugars like starch have any special names? or can i call them polymers?
--- End quote ---
complex sugars like starch are usually called polysaccharides
godfather93:
--- Quote from: kim on May 30, 2009, 02:47:44 pm ---hey u guyz know those questions where they give the boiling points of sum alkanes and then ask to predict the boiling pt of one of them
how do u dat?
--- End quote ---
@ kim - to find the boiling point there r 2 cases -
1) they give u graph to draw and u have to predict the boiling point - in that case u have to continue the graph line in the same trend and read the value on the graph (known as extrapolation)
2) they give u table and tell u to predict the boiling point - then 4 sure there will be some linear trend shown by the boiling points given in the table.
hope u understand
@thukon - simple sugars like glucose and sucrose are called monosaccharides
maltose and fructose are "bigger" molecules known as disaccharides
starch and cellulose are complex molecules known as polysaccharides
Nanavel:
Questions :
1) wha are the 2 uses of the 5 halogen atoms ??
2) explain by giving its structure why diamond is so hard ?? [4]
3) explain the structure of Diamond ??
4) describe the structure of germanium ?
unknown 101:
--- Quote from: godfather93 on May 30, 2009, 03:01:37 pm ---
--- Quote from: kim on May 30, 2009, 02:47:44 pm ---hey u guyz know those questions where they give the boiling points of sum alkanes and then ask to predict the boiling pt of one of them
how do u dat?
--- End quote ---
@ kim - to find the boiling point there r 2 cases -
1) they give u graph to draw and u have to predict the boiling point - in that case u have to continue the graph line in the same trend and read the value on the graph (known as extrapolation)
2) they give u table and tell u to predict the boiling point - then 4 sure there will be some linear trend shown by the boiling points given in the table.
hope u understand
@thukon - simple sugars like glucose and sucrose are called monosaccharides
maltose and fructose are "bigger" molecules known as disaccharides
starch and cellulose are complex molecules known as polysaccharides
--- End quote ---
or they sometimes give u a table that has the boiling points, in that case u do second orgnic substance- first, third - 2nd , u see how much the difference is and if its constant, then u add the constant to the previous substance, if its not just do any reasonable prediction
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