Question

Урівняй: 1) Mg--->MgS--->SO2--->SO3 2) H2S--->SO2

Answer 1

1)H2S +Mg→MgS +H2 о

2MgS+O2→2MgO+SO2

2SO2+O2 →(кат)2SO3

2)2H2S + 3O2→2SO2 + 2H2O

Answer 2

The given sequences represent chemical reactions:

1. Mg → MgS → SO2 → SO3
2. H2S → SO2

To balance these reactions, let's go through each one step by step:

1. Mg → MgS → SO2 → SO3

• First reaction: Mg → MgS Mg + S → MgS

• Second reaction: MgS → SO2 MgS + O2 → Mg + SO2

• Third reaction: SO2 → SO3 2SO2 + O2 → 2SO3

So, the balanced overall reaction is:

2Mg + O2 → 2MgO

2. H2S → SO2

• First reaction: H2S → H2 + S H2S → H2 + S

• Second reaction: S + O2 → SO2 2S + 2O2 → 2SO2

So, the balanced overall reaction is:

2H2S + 3O2 → 2H2O + 2SO2