Or you want a quick look:
This is an oxidation-reduction (redox) reaction:
2 HI + 2 e- → 2 H (reduction)
Ba - 2 e- → BaII (oxidation)
H2O is an oxidizing agent, Ba is a reducing agent.
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Reactants:
- Ba
- Names: Barium , Ba , Element 56
- Appearance: Yellowish-to-white lustrous solid in various forms
- H2O – Water, oxidane
- Other names: Water (H2O) , Hydrogen hydroxide (HH or HOH) , Hydrogen oxide
- Appearance: White crystalline solid, almost colorless liquid with a hint of blue, colorless gas
Products:
- Ba(OH)2
- Names: Barium hydroxide , Caustic baryta , Barium hydroxide lime , Ba(OH)2
- Appearance: White solid
- H2
- Names: Dihydrogen , Hydrogen , H2
- Appearance: Odourless colourless compressed gas
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2 + H2 – Balanced equation){kind=link}