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Write an ionic equation for this reaction...

Iodine is extracted commercially from seawater with chlorine gas. Seawater contains very small quantities of dissolved iodide ions, which are oxidised to iodine by the chlorine gas.

Write an ionic equation for the reaction that has taken place.

Please help! I have no idea where to even start, my mind's gone totally blank o_O

Reply 1

EierVonSatan

Write out what it tells you so far:

iodine ions + chlorine gas -----> iodine

and finish it :ninja2:

Reply 2

Pride

write the word equation of what they just told you. It's wordy, but think logically, it's quite self-explanatory. It's a displacement reaction involving halogens.

iodide ions + chlorine ---> iodine + chloride ions

so, just like it says in the textbook you have under displacement reactions, it's 2I^- + Cl₂ --> I₂ + 2Cl^-

Reply 3

Smellydebra

@tarvitzenjääta