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what are the coloured compounds i need to know for chemistry 0620
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chemistry 0620 (all colour compound you need to know )
- Thread starter karimz96
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all transition meals have coloured compounds....
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but thier are compound like CU change when heated or dehydrated from where can i study the 
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do you mean when ammonia or sodium hydroxide add into the matter right ?
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Its there in syllabus in the appendix.
and you have to know color change in Copper (2) sulphate as well as cobalt chloride when hyrated
For copper 2 suplhate
Turns from white to blue when water is added (anhydrous to hydrous)
For Cobalt Chloride
Turns from blue to pink when water added. (anhydrous to hydrous)
You can heat the hydrated salt to make it anhydrous
and you have to know color change in Copper (2) sulphate as well as cobalt chloride when hyrated
For copper 2 suplhate
Turns from white to blue when water is added (anhydrous to hydrous)
For Cobalt Chloride
Turns from blue to pink when water added. (anhydrous to hydrous)
You can heat the hydrated salt to make it anhydrous