Qualification > Sciences
CHEM AND BIO HELP AND TIPS HERE
Ghost Of Highbury:
5g) Manganese Oxide/Catalysr, reasons : Black solid(Transition Metals have color), Effervescence because of Oxygen released as it speeds up the breaking with H2O2, glowing splint relit because of oxygen again.
Q6) This is a very common question, learn the steps to extract a color from a solution.
Add water, crush the berries, finally, decant it to remove the insoluble waste. U can also warm it.
b) use the indicator in an acid, base and a neutral solution , if its an effective indicator it shud give out three different colors.
CatAly$t:
does anybody know who got A* in chemistry??
i've never heard anybody got an A* in chem....
is it ossible to get an A* or is it very hard??
saywhatsaykobe:
Many have gotten A stars. You are an assured an A* if u get 90 or above...
Ghost Of Highbury:
There are many who get A* in Chemistry, i got an A* too. Yes, above 90%ile, i got 95%ile.
CatAly$t:
--- Quote from: A@di on May 04, 2010, 11:19:03 am ---There are many who get A* in Chemistry, i got an A* too. Yes, above 90%ile, i got 95%ile.
--- End quote ---
woww man!! so now i can ask u questions....
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