Question: Hydrocyanic acid (HCN) is a weak acid and a deadly poisonous compound-in the gaseous form (hydrogen cyanide) it is used in gas chambers. Why is

Hydrocyanic acid (HCN) is a weak acid and a deadly poisonous compound-in the gaseous form (hydrogen cyanide) it is used in gas chambers. Why is it dangerous to treat sodium cyanide with acids (such as HCl) without proper ventilation?

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