Question

Доберіть коефіцієнти у схемах реакцій, укажіть їхні типи: 1) KOH+H₂SO4 → K₂SO4+H₂O 2) Al+O2 → Al2O3 3) H₂SiO3 → H₂O + SiO₂ 4) Fe2O3 +H2 →Fe+H2O 5) NiCl2 + NaOH → Ni(OH)2 + NaCl 6) Fe+ Cl2 →FeCl3 7) CuCO3 → CuO + CO₂ 8) AgNO3 + Cu → Cu(NO3)₂ + Ag​

Answer 1

Ответ:

Объяснение:

1) 2 KOH + H2SO4 → K2SO4 + 2 H2O -реакция обмена

2) 4 Al + 3 O2 → 2 Al2O3 -реакция соеденения

3) H₂SiO3 → H₂O + SiO₂ -реакция разложения

4) Fe2O3 + 3 H2 → 2 Fe + 3 H2O -реакция замещения

5) NiCl2 + 2 NaOH → Ni(OH)2↓ + 2 NaCl -реакция обмена

6) 2 Fe + 3 Cl2 → 2 FeCl3 -реакция соеденения

7)CuCO3 → CuO + CO₂↑ -реакция разложения

8)Cu + 2 AgNO3 → 2 Ag + Cu(NO3)2 -реакция замещения

Answer 2

Ответ:

Вот, надеюсь уравнения вам понятны

Answer 3

Coefficients and Types of Reactions in the Given Chemical Equations

1) KOH + H₂SO4 → K₂SO4 + H₂O - Type of reaction: Acid-base neutralization reaction - Balanced equation: 2KOH + H₂SO4 → K₂SO4 + 2H₂O [[1]]

2) Al + O2 → Al2O3 - Type of reaction: Combination reaction - Balanced equation: 4Al + 3O2 → 2Al2O3 [[2]]

3) H₂SiO3 → H₂O + SiO₂ - Type of reaction: Decomposition reaction - Balanced equation: H₂SiO3 → H₂O + SiO₂ [[3]]

4) Fe2O3 + H2 → Fe + H2O - Type of reaction: Redox reaction - Balanced equation: Fe2O3 + 3H2 → 2Fe + 3H2O [[4]]

5) NiCl2 + NaOH → Ni(OH)2 + NaCl - Type of reaction: Double displacement reaction - Balanced equation: NiCl2 + 2NaOH → Ni(OH)2 + 2NaCl [[5]]

6) Fe + Cl2 → FeCl3 - Type of reaction: Combination reaction - Balanced equation: 2Fe + 3Cl2 → 2FeCl3 [[6]]

7) CuCO3 → CuO + CO₂ - Type of reaction: Decomposition reaction - Balanced equation: CuCO3 → CuO + CO₂ [[7]]

8) AgNO3 + Cu → Cu(NO3)₂ + Ag - Type of reaction: Single displacement reaction - Balanced equation: 2AgNO3 + Cu → Cu(NO3)₂ + 2Ag [[8]]

Please note that the coefficients and types of reactions provided above are based on the given chemical equations and are sourced from search results.