Chemistry

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In blueprinting, there are to reactions that occur.
The first one: Fe^3+ + C204^-2 (oxalate) -> Fe^2+ + CO3
must occur with light.

Can the second reaction described by the chemical equation below occur without light?

Fe^2+ + Fe (CN)6^-2 -> Fe3[Fe(CN)6]2

Please explain why, thank you!

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