Question

When an acid is dissolved in water (H2O), what element separates from the acid to bond with water to create H3O+?

1.Cl

2.Na

3.H

4.O

Answer 1

Answer: 3 H

An acid consists of a hydrogen {positive radical} and a halogen or negative radical. When it is dissolved in water, the ionic bond is broken and ions are separated. The free H+ radical gets attracted to Hydrogen of water H2O and so it forms H3O+. The ionic bond gets weaker in water as electromagnetic forces are weak in water as water is dielectric medium.