#1
I can't believe I'm resorting to this but I need help with these chemistry questions. ANy ideas/answers would be greatly appreciated.

Iron(III) cation is a common impurity in water-even distilled water-because the water is usually passed though iron pipes. If this impurity is present it appears as a horizontal streak rather than as a spot. Why?


If the colored chloride and ammonia complexes of metal cations are left for an extended period of time, they fade away. Why?
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#2
Quote by GL1564
this impurity is present it appears as a horizontal streak rather than as a spot. Why??


What? Appears were?
#3
those are the exact wordings?

for the second one it sounds like the impurities are diluting in the solution so you can't see them anymore.
#4
I'm not really sure about this, but if you ever need info on slipping somebody a litte cyanide, arsenic, chlorine gas, or pretty much anything evil, I'm your man
#5
Those were the exact wordings
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