Question

Б) Закончите уравнения химических реакций, определите восстановитель и окислитель. Назовите продукты реакций. 1. Al + N2 → 2. Cu + Cl2 → 3. Zn + O2 → 4. Na + H2O → 5. K + S → 6. Ca + H2SiO3 →

Answer 1

1) не идет
2)Cu+Cl2=CuCl2 (хлорид меди 2)
Хлор окислитель, медь восстановитель
3)2Zn+O2=2ZnO
(оксид цинка)
Кислород окислитель, цинк восстановитель
4)2Na+2H2O=2NaOH+H2 (гидроксид натрия и водород)
Водород окислитель, натрий восстановитель
5)2K+S=K2S
(сульфид калия)
Сера окислитель, калий восстановитель
6)не идет

Answer 2

Balancing Chemical Equations and Identifying Redox Reactions

1. Al + N2 → - The balanced chemical equation for the reaction between aluminum and nitrogen is: ``` 2 Al + N2 → 2 AlN ``` - In this reaction, aluminum is oxidized, and nitrogen is reduced. Aluminum is the reducing agent, and nitrogen is the oxidizing agent. - The products of the reaction are aluminum nitride.

2. Cu + Cl2 → - The balanced chemical equation for the reaction between copper and chlorine is: ``` Cu + Cl2 → CuCl2 ``` - In this reaction, copper is oxidized, and chlorine is reduced. Copper is the reducing agent, and chlorine is the oxidizing agent. - The product of the reaction is copper(II) chloride.

3. Zn + O2 → - The balanced chemical equation for the reaction between zinc and oxygen is: ``` 2 Zn + O2 → 2 ZnO ``` - In this reaction, zinc is oxidized, and oxygen is reduced. Zinc is the reducing agent, and oxygen is the oxidizing agent. - The product of the reaction is zinc oxide.

4. Na + H2O → - The balanced chemical equation for the reaction between sodium and water is: ``` 2 Na + 2 H2O → 2 NaOH + H2 ``` - In this reaction, sodium is oxidized, and water is reduced. Sodium is the reducing agent, and water is the oxidizing agent. - The products of the reaction are sodium hydroxide and hydrogen gas.

5. K + S → - The balanced chemical equation for the reaction between potassium and sulfur is: ``` 2 K + S → K2S ``` - In this reaction, potassium is oxidized, and sulfur is reduced. Potassium is the reducing agent, and sulfur is the oxidizing agent. - The product of the reaction is potassium sulfide.

6. Ca + H2SiO3 → - The balanced chemical equation for the reaction between calcium and silicic acid is: ``` Ca + H2SiO3 → CaSiO3 + H2 ``` - In this reaction, calcium is oxidized, and silicic acid is reduced. Calcium is the reducing agent, and silicic acid is the oxidizing agent. - The products of the reaction are calcium silicate and hydrogen gas.