Question

СРОЧНО ПОМОГИТЕ!!!!! 1. З якими з наведених речовин взаємодіє купрум(II) хлорид: NaOH, H2SO4, AgNO3, Fe2O3, CO2, Zn, NaCl, Cu? Складіть рівняння реакцій. 2. Складіть рівняння реакцій, що відповідають таким перетворенням: а) BaO → BaCl2 → BaSO4; б) Ca → Ca(OH)2 → CaCO3 → CaO → CaCl2 → CaCO3;

Answer 1

Объяснение:

1. NaOH + CuCI2 = NaCI2 + Cu(OH)²↓

2AgNO³ + CuCI2 = 2AgCI↓ + Cu(NO3)2

Zn + CuCI2 = ZnCI2 + Cu

2.

a) Ba + O2 = BaO2

BaO + 2HCI = BaCI2 + H2O

BaCI2 + H2SO4 = BaSO4 + 2HCI

б) Ca + 2H2O = Ca(OH)2 + H2

Ca(OH)2 + CO2 = CaCO3 + H2O

CaCo3 ---t---> CaO + CO2

CaO + 2HCI = CaCI2 + H2O

CaCI2 + K2CO3 = CaCO3 + 2KCI

Answer 2

Interaction of Copper(II) Chloride with the Given Substances:

Copper(II) chloride (CuCl2) can interact with various substances to form different compounds or undergo different reactions. Let's examine the interactions of copper(II) chloride with the given substances:

1. Sodium Hydroxide (NaOH): - When copper(II) chloride reacts with sodium hydroxide, it forms copper(II) hydroxide and sodium chloride. - The balanced chemical equation for this reaction is: CuCl2 + 2NaOH → Cu(OH)2 + 2NaCl [[1]].

2. Sulfuric Acid (H2SO4): - Copper(II) chloride reacts with sulfuric acid to produce copper(II) sulfate, hydrochloric acid, and water. - The balanced chemical equation for this reaction is: CuCl2 + H2SO4 → CuSO4 + 2HCl + H2O [[2]].

3. Silver Nitrate (AgNO3): - When copper(II) chloride reacts with silver nitrate, it forms silver chloride and copper(II) nitrate. - The balanced chemical equation for this reaction is: CuCl2 + 2AgNO3 → 2AgCl + Cu(NO3)2 [[3]].

4. Iron(III) Oxide (Fe2O3): - Copper(II) chloride does not directly react with iron(III) oxide. No reaction occurs between them.

5. Carbon Dioxide (CO2): - Copper(II) chloride does not directly react with carbon dioxide.