Peggy asked in 科學及數學化學 · 1 decade ago

what are the colours of these?

what are the colours of:

I2(Iodine)

Br2(Bromine)

Cl2(Chlorine)

when they are in aqueous solutions

and when they exist as gases?

1 Answer

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  • 1 decade ago
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    Iodine vapour is violet, and its aqueous solution is brown.

    Bromine vapour is brown, and its aqueous solution is brown.

    Chlorine gas is pale yellowish green, and its aqueous solution is very pale yellowish green.

    =

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