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What is the net ionic equation of the following reactions? 1) Solid Cr2O3 and 6M HCl...

What is the net ionic equation of the following reactions?

1) Solid Cr2O3 and 6M HCl

2) 6M NaCN is added to a solution containing [HgI4]2-. Note: you may want to check a table of Kf constant.

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