Question

Write the formula of the acid formed by the direct combination reaction of Sulphur dioxide with oxygen.​

Answer 1

Answer:

A reaction between calcium and oxygen to form calcium oxide. 2Ca+O_2\ →\ 2CaO2Ca+O

2

→ 2CaO

When limestone is heated CaCO_3\ →\ CaO+CO_2CaCO

3

→ CaO+CO

2

When electricity is passed through water 2H_2O\ →\ 2H_2+O_22H

2

O → 2H

2

+O

2

Displacement reaction Zn+CuSO_4\ →\ Cu+ZnSO_4Zn+CuSO

4

→ Cu+ZnSO

4

Zinc displaces copper because it is more reactive.

Neutralization of acid with base to form salt & water Ca(OH)_2+H_2SO_4\ →\ CaSO_4+2H_2OCa(OH)

2

+H

2

SO

4

→ CaSO

4

+2H

2

O

Double decomposition reaction: AgNO_3+NaCl\ →\ AgCl+NaNO_3AgNO

3

+NaCl → AgCl+NaNO

3

Answer 2

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$2SO_2 + O_2$ → $2SO_3$