Write the major species in the water solution of each substance given. Write the hydronium ion as H+ and do not write coeffients with ions.

a. Ca(ClO4)2
b. HI
c. HC2H3O2

a. The major species are Ca²⁺ and ClO₄⁻.

b. The major species are H⁺ and I⁻.

c. The major species are H⁺ and C₂H₃O₂⁻.

Explanation:

Hello there!

In this case, according to the required, we need to firstly tell that both Ca(ClO4)2 and HI undergo a complete ionization as the former is an ionic salt and the latter is a strong acid. Moreover, the HC2H3O2 is a weak acid, so its dissociation is not complete. In such a way, we can proceed as follows:

a.

Thus, the major species are Ca²⁺ and ClO₄⁻.

b.

Thus, the major species are H⁺ and I⁻.

c.

Thus, the major species are H⁺ and C₂H₃O₂⁻.

Regards!

the density(ratio between mass and volume as m/v) decreases from top to bottom in periodic table group as the size increases and nuclear charge decreases. but in periods density increases from left to right as atom size decreases and nuclear charge increases.