Write the equations that represent the first and second ionization steps for selenic acid (H2SeO4) in water. (Use H3O instead of H .) First ionization step: H2O(l) Second ionization step: H2O(l)

First ionization step:

H₂SeO₄(aq) + H₂O(l)  →  H₃O⁺(aq) + HSeO₄⁻(aq)

Second ionization step:

HSeO₄⁻(aq) + H₂O(l)  →  H₃O⁺(aq) + SeO₄⁻²(aq)

Explanation:

Selenic acid is a dyprotic and a strong acid with the formula: H₂SeO₄.

When it reacts to water, it release two protons in two ionizations.

Finally it gives hydronium to the medium.

H₂SeO₄(aq) + H₂O(l)  →  H₃O⁺(aq) + HSeO₄⁻(aq)

HSeO₄⁻(aq) + H₂O(l)  →  H₃O⁺(aq) + SeO₄⁻²(aq)

in chemistry, adhesion and cohesion are attractive forces that exist between molecules. they hold the molecules together from each other. they are different in that adhesive force exists between molecules of different substance while cohesive force happens between molecules of same substance.

adhesion between water and glass causes water molecules at the edge of water and glass interface to climb up the wall in a narrow glass tube. this is called capillary action. cohesion is what gives glass its shape and causes water to form a droplet.

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