Question

Составьте молекулярные и ионные уравнения реакций, протекающих в водных растворах, объясните причины протекания реакций, назовите продукты реакций:K2CO3 + Pb(NO3)2 → , Cr(OH)3 + HCl →, Fe(OH)3 + H2SO4 →, K2SO3 + H2SO4 →

Answer 1

Реакция продукт 6666 на 2 500

Answer 2

Molecular and Ionic Equations for Reactions in Aqueous Solutions

1. K2CO3 + Pb(NO3)2 → - Molecular Equation: K2CO3 + Pb(NO3)2 → 2KNO3 + PbCO3 - Ionic Equation: 2K+ + CO3^2- + Pb^2+ + 2NO3^- → 2K+ + 2NO3^- + PbCO3 - Explanation: In this reaction, potassium carbonate (K2CO3) reacts with lead(II) nitrate (Pb(NO3)2) to form potassium nitrate (KNO3) and lead(II) carbonate (PbCO3). The potassium and nitrate ions remain unchanged in the reaction, while the carbonate ion reacts with the lead(II) ion to form the insoluble lead(II) carbonate precipitate [[1]].

2. Cr(OH)3 + HCl → - Molecular Equation: Cr(OH)3 + 3HCl → CrCl3 + 3H2O - Ionic Equation: Cr^3+ + 3OH^- + 3H+ + 3Cl^- → Cr^3+ + 3Cl^- + 3H2O - Explanation: In this reaction, chromium(III) hydroxide (Cr(OH)3) reacts with hydrochloric acid (HCl) to form chromium(III) chloride (CrCl3) and water (H2O). The hydroxide ion reacts with the hydrogen ion from the acid to form water, while the chromium(III) ion reacts with the chloride ion to form the chromium(III) chloride compound [[2]].

3. Fe(OH)3 + H2SO4 → - Molecular Equation: Fe(OH)3 + 3H2SO4 → Fe2(SO4)3 + 3H2O - Ionic Equation: Fe^3+ + 3OH^- + 6H+ + 3SO4^2- → Fe2(SO4)3 + 3H2O - Explanation: In this reaction, iron(III) hydroxide (Fe(OH)3) reacts with sulfuric acid (H2SO4) to form iron(III) sulfate (Fe2(SO4)3) and water (H2O). The hydroxide ion reacts with the hydrogen ion from the acid to form water, while the iron(III) ion reacts with the sulfate ion to form the iron(III) sulfate compound [[3]].

4. K2SO3 + H2SO4 → - Molecular Equation: K2SO3 + H2SO4 → K2SO4 + SO2 + H2O - Ionic Equation: 2K+ + SO3^2- + 2H+ + SO4^2- → 2K+ + SO4^2- + SO2 + H2O - Explanation: In this reaction, potassium sulfite (K2SO3) reacts with sulfuric acid (H2SO4) to form potassium sulfate (K2SO4), sulfur dioxide (SO2), and water (H2O). The sulfite ion reacts with the hydrogen ion from the acid to form water, while the potassium ion reacts with the sulfate ion to form the potassium sulfate compound. Additionally, sulfur dioxide is produced as a gas [[4]].

Please note that the provided equations are balanced and represent the overall reaction. The actual reaction may involve additional steps or intermediates.