when ferrus sulphate crystals are burnt (by a bunen burner) then the green color changes to what color??

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when ferrus sulphate crystals are burnt (by a bunen burner) then the green color changes to what color??

then the green color of the ferrus sulphate crystals changes to what color??

2007-03-07 01:49:24 · 2 answers · asked by trisha 2 in Science & Mathematics ➔ Chemistry

2 answers

Iron has two stable oxidation states, Fe2+ and Fe3+.
Ferrous iron is Fe2+. Burning it oxidises it to Fe3+, ferric iron- which forms brown or red compounds. (Rust for example).

2007-03-07 01:56:58 · answer #1 · answered by Ian I 4 · 0⤊ 0⤋

bright yellow.

2007-03-07 09:54:22 · answer #2 · answered by myyahoo! 2 · 0⤊ 0⤋