Question

Как практически осуществить следующие цепочки превращений?Составьте соответствующие уравнения реакций,укажите их типы и тепловые эффекты. НЕ ЗНАЮ КАК СТАВИТЬ СТРЕЛКУ НА КЛАВИАТУРЕ ПОЭТОМУ ВМЕСТО СТРЕЛКИ ВОТ ЭТО - 1)H2O2-O2-Al2O3 2)KMnO4-O2-Cao 3)KNO3-O2-CO 4)HgO-O2-P2O3

Answer 1

2H₂O₂ = O₂ + 2H₂O
3O₂ + 4Al = 2Al₂O₃

2KMnO₄ = K₂MnO₄ + MnO₂ + O₂
O₂ + 2Ca = 2CaO

2KNO₃ = 2KNO₂ + O₂
O₂ + 2C = 2CO

2HgO = 2Hg + O₂
3O₂ + 4P = 2P₂O₃

Answer 2

Chemical Reactions and Equations

Let's break down the given chemical transformations and write the corresponding equations, types, and thermal effects.

1. H2O2 → O2 → Al2O3 - Equation: ``` 2 H2O2 → 2 H2O + O2 4 Al + 3 O2 → 2 Al2O3 ``` - Types: Decomposition, Combination - Thermal Effects: Decomposition of hydrogen peroxide is exothermic, and the formation of aluminum oxide is also exothermic.

2. KMnO4 → O2 → CaO - Equation: ``` 2 KMnO4 → K2MnO4 + MnO2 + O2 2 Ca + O2 → 2 CaO ``` - Types: Decomposition, Combination - Thermal Effects: Decomposition of potassium permanganate is exothermic, and the formation of calcium oxide is also exothermic.

3. KNO3 → O2 → CO - Equation: ``` 2 KNO3 → 2 KNO2 + O2 2 CO2 → 2 CO + O2 ``` - Types: Decomposition, Decomposition - Thermal Effects: Decomposition of potassium nitrate is endothermic, and the decomposition of carbon dioxide into carbon monoxide and oxygen is endothermic.

4. HgO → O2 → P2O3 - Equation: ``` 2 HgO → 2 Hg + O2 4 P + 3 O2 → 2 P2O3 ``` - Types: Decomposition, Combination - Thermal Effects: Decomposition of mercury(II) oxide is endothermic, and the formation of diphosphorus trioxide is exothermic.

I hope this breakdown helps! If you have further questions or need more details on any of the reactions, feel free to ask.