cho ví dụ chứng minh rằng oxi là một đơn chất phi kim rất hoạt động

2 câu trả lời

O2 là một phi kim rất hoạt động.

Oxi có khả năng tác dụng được với phi kim:

C+O2->CO2

Oxi có khả năng tác dụng với kim loại

3Fe+2O2->Fe3O4

Ví dụ: Oxi tác dụng với hầu hết các chất ở nhiệt độ cao:

4P + 5O2 −to→ 2P2O5; C + O2 −to→ CO2

3Fe + 2O2 −to→ Fe3O4; S + O2 −to→ SO2

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