Question

A)Cu+Al2O3-->... б)CH4+O2--> в)Al2S3+O2--> г)Na+H2O--> д)SO2+...-->Na2SO3+... г)BaSO3+...-->SO2+...

Answer 1

A)Cu+Al2O3=> реакция не пойдёт
Б)СH4+2O2=>CO2+2H2O
В)2Al2S3+9O2=>2Al2O3+6SO2
Г)2Na+2H2O=>2NaOH+H2
Д)SO2+2NaOH=>Na2SO3+H2O
Г)BaSO3+H2SO4(конц.)=>BaSO4+
SO2+H2O

Answer 2

A) Cu + Al2O3 --> ... The reaction between copper (Cu) and aluminum oxide (Al2O3) is a redox reaction. Copper is a reducing agent, while aluminum oxide is an oxidizing agent. The reaction can be represented as follows:

2Cu + Al2O3 --> 2Al + 3CuO

In this reaction, copper reduces the aluminum oxide to aluminum, while it itself gets oxidized to copper(II) oxide.

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