Question

what does this double arrow mean in above pic

Answer 1

$<b>Hay!!</b>$



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$The\:two\:arrows\: ( \uparrow \uparrow) means \:that\: in \:the\: \\above \: question \:Calgon \:disassociates\: to \: \\ give\: vapour.$



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Answer 2

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$\mathfrak{\green{ANSWER:}}$

The two arrows means that in above question calgon disassociates to give vapour.

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