The compound calcium nitrate is a strong electrolyte. Write the reaction when solid calcium nitrate is put into water:

Question

I need help with this exercise, please.

The compound calcium nitrate is a strong electrolyte. Write the reaction when solid calcium nitrate is put into water.

I have three blank spaces to fill in.

Answer 1

Because it is a strong electrolyte, it will dissociate completely in water to produce the ions that make up the salt.

Calcium nitrate = Ca(NO₃)₂

When placed in water, this will dissociate as follows:

Ca(NO₃)₂ ==> Ca²⁺(aq) = 2NO₃^-(aq)

If you have 3 spaces to fill in, I can't imagine what they want in the 3rd space. Perhaps they want

Ca²⁺, NO₃^-, NO₃^- or maybe they want Ca²⁺, NO₃^-, H₂O. I'm not sure.