i pls help me identify the Bronsted-Lowry acid, Bronsted-Lowry base, and conjugates in each chemical reaction

Question

1. HClO4+ H2O ⇆ H3O⁺ + ClO4^-
2. H2O+H2SO4 ⇆ HSO4^- + H3O⁺
3. H2O+HCO3^- ⇆ CO32^- +H3O^-
4. H2O+ H2O ⇆ H₃O+ OH^-

Answer 1

Bronsted Lowry acid are those substance which give proton(H⁺) in any solvent.

Bronsted Lowry base are those substance which accept proton(H⁺) in any solvent.

So,

i. HClO₄ is giving proton thus it is bronsted Lowry acid. Where H₂O is bronsted Lowry base.

ii. H₂SO₄ is giving proton thus it is bronsted Lowry acid. Where H₂O is bronsted Lowry base.

iii. HCO₃^- is giving proton thus it is bronsted Lowry acid. Where H₂O is bronsted Lowry base.

iv. It is self ionisation. H₂O is giving proton thus it is bronsted Lowry acid. Where H₂O is bronsted Lowry base.