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Hydroiodic Acid

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Contents

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Key Stage 4

Meaning

Hydroiodic Acid is an acid with the chemical formula HI.

About Hydroiodic Acid

Hydroiodic Acid reacts with metals and bases to produce Iodide salts.

Hydroiodic Acid and Metals

Hydroiodic Acid + Sodium → Sodium Iodide + Hydrogen
2HI + 2Na → 2NaI + H2
Hydroiodic Acid + Magnesium → Magnesium Iodide + Hydrogen
2HI + Mg → MgI2 + H2
Hydroiodic Acid + Aluminium → Aluminium Iodide + Hydrogen
6HI + 2Al → 2AlI3 + 3H2

Hydroiodic Acid and Metal Oxides

Hydroiodic Acid + Sodium Oxide → Sodium Iodide + Water
2HI + Na2O → 2NaI + H2O
Hydroiodic Acid + Magnesium Oxide → Magnesium Iodide + Water
2HI + MgO → MgI2 + H2O
Hydroiodic Acid + Aluminium Oxide → Aluminium Iodide + Water
6HI + Al2O3 → 2AlI3 + 3H2O

Hydroiodic Acid and Metal Hydroxides

Hydroiodic Acid + Sodium Hydroxide → Sodium Iodide + Water
HI + Na2OH → NaI + H2O
Hydroiodic Acid + Magnesium Hydroxide → Magnesium Iodide + Water
2HI + Mg(OH)2 → MgI2 + 2H2O
Hydroiodic Acid + Aluminium Hydroxide → Aluminium Iodide + Water
3HI + Al(OH)3 → AlI3 + 3H2O

Hydroiodic Acid and Metal Carbonates

Hydroiodic Acid + Sodium Carbonate → Sodium Iodide + Carbon Dioxide + Water
2HI + Na2CO3 → 2NaI + CO2 + H2O
Hydroiodic Acid + Magnesium Carbonate → Magnesium Iodide + Carbon Dioxide + Water
2HI + MgCO3 → MgI2 + CO2 + H2O
Hydroiodic Acid + Aluminium Carbonate → Aluminium Iodide + Carbon Dioxide + Water
6HI + Al2(CO3)3 → 2AlI3 + 3CO2 + 3H2O
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