AP Chemistry Lab Manual - PC\|MAC

In the reaction between a free halogen X2 and a halide ion Y-, the free halogen gains electrons is reduced to its halide ion X2 + 2e- ( 2X-. The original halide ion is oxidized to the free halogen state. ... HBr. HF. HNO2. HCN. You have exposed electrodes of a light bulb in a solution of sulfuric acid such that the light bulb is on. You add a ... ................
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