Question

Закінчіть рівняння реакції і розставте коефіцієнти. Вкажіть типи реакції. 1. Ca + HCl→______2. Cuo + H²SO⁴→_______3. NaOH + HNO³→_______4. BaCl² + H²SO⁴→________​

Answer 1

Объяснение:

1. Ca + 2HCl → СаCl2 + H2 реакция замещения.

2. CuО + H2SO4 → CuSO4 + H2O реакция обмена.

3. NaOH + HNO3 → NaNO3 + H2O реакция обмена, нейтрализации.

4. BaCl2 + H2SO4→ BaSO4↓ + 2HCl реакция обмена.

Answer 2

Balancing Chemical Equations and Reaction Types

1. Balancing the Equations: - The balanced chemical equations for the given reactions are as follows: 1. Ca + 2HCl → CaCl2 + H2 2. CuO + H2SO4 → CuSO4 + H2O 3. 2NaOH + HNO3 → NaNO3 + H2O 4. BaCl2 + H2SO4 → BaSO4 + 2HCl

2. Types of Reactions: - The types of reactions for the given equations are: 1. Single Replacement Reaction: In the first reaction, calcium (Ca) replaces hydrogen (H) in hydrochloric acid (HCl) to form calcium chloride (CaCl2) and hydrogen gas (H2). 2. Acid-Base Neutralization Reaction: The second reaction is an acid-base neutralization reaction where copper oxide (CuO) reacts with sulfuric acid (H2SO4) to produce copper sulfate (CuSO4) and water (H2O). 3. Double Replacement Reaction: The third reaction is a double replacement reaction where sodium hydroxide (NaOH) reacts with nitric acid (HNO3) to form sodium nitrate (NaNO3) and water (H2O). 4. Precipitation Reaction: The fourth reaction is a precipitation reaction where barium chloride (BaCl2) reacts with sulfuric acid (H2SO4) to produce barium sulfate (BaSO4) and hydrochloric acid (HCl).

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