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    i need help with come up with a method which would allow me to get the solution to change colour under a minute
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    Have high concs and warm it?
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    Use less thiosulfate ...
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    ok thank you guys
 
 
 
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Updated: November 4, 2017
Poll
Do you like carrot cake?

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

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