Question

H2→HCl→BaCl2→Ba(OH)2→BaSo4​

Answer 1

Ответ:

H2+Cl2=2HCl

2HCl+Ba=BaCl2+H2

BaCl+HOH=Ba(OH)2+H2+Cl2

Ba(OH)2+H2SO4=BaSO4+2H2O

Answer 2

The series of chemical reactions you've provided involves the transformation of hydrogen gas (H2) into barium sulfate (BaSO4) through several steps. Let's break down each step in the process:

1. H2 (Hydrogen gas) → HCl (Hydrochloric acid): Hydrogen gas (H2) can be reacted with chlorine gas (Cl2) to form hydrogen chloride (HCl). The balanced chemical equation for this reaction is: H2 + Cl2 → 2HCl

2. HCl (Hydrochloric acid) → BaCl2 (Barium chloride): Hydrochloric acid (HCl) can be reacted with barium carbonate (BaCO3) or barium hydroxide (Ba(OH)2) to form barium chloride (BaCl2) through a double displacement reaction. The balanced chemical equation for this reaction is: HCl + BaCO3 → BaCl2 + H2O + CO2 OR 2HCl + Ba(OH)2 → BaCl2 + 2H2O

3. BaCl2 (Barium chloride) → Ba(OH)2 (Barium hydroxide): Barium chloride (BaCl2) can be reacted with sodium hydroxide (NaOH) to form barium hydroxide (Ba(OH)2) through a double displacement reaction. The balanced chemical equation for this reaction is: BaCl2 + 2NaOH → 2NaCl + Ba(OH)2

4. Ba(OH)2 (Barium hydroxide) → BaSO4 (Barium sulfate): Barium hydroxide (Ba(OH)2) can be reacted with sulfuric acid (H2SO4) to form barium sulfate (BaSO4) through a double displacement reaction. The balanced chemical equation for this reaction is: Ba(OH)2 + H2SO4 → BaSO4 + 2H2O

So, the overall series of reactions from H2 to BaSO4 is as follows: H2 + Cl2 → 2HCl HCl + Ba(OH)2 → BaCl2 + 2H2O BaCl2 + 2NaOH → 2NaCl + Ba(OH)2 Ba(OH)2 + H2SO4 → BaSO4 + 2H2O

This series of reactions demonstrates the transformation of hydrogen gas into barium sulfate through the intermediates of hydrochloric acid and barium chloride.