Which of the listed salts does hydrochloric acid react with: sodium sulfate, iron (2) sulfide, potassium silicate, aluminum nitrate?
| February 17, 2021 | education
1) HCl + Na2SO4 → the reaction does not proceed, since neither gas, nor precipitate, nor weak electrolyte are formed.
2) 2HCl + FeS → FeCl2 + H2S (iron (II) chloride, hydrogen sulfide; the exchange reaction, the reaction proceeds, since gas is formed in the form of hydrogen sulfide).
3) 2HCl + K2SiO3 → 2KCl + H2SiO3 (potassium chloride; silicic acid; exchange reaction, the reaction proceeds, since a precipitate is formed in the form of silicic acid).
4) HCl + Al (NO3) 3 → the reaction does not proceed, since neither gas, nor precipitate, nor weak electrolyte are formed.
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