When an aqueous solution of silver nitrate is mixed with an aqueous solution of potassium
chloride which are the spectator ions?

and

Explanation:

The equation for the reaction is AgNO3(aq) + KCl(aq) ==> AgCl(s) + KNO3(aq)

With all the ions, it is

(aq) + (aq) + (aq) + (aq)  ==> AgCl(s) +

and do not change, so they are the spectator ions and are removed

The ionic equation is:

(aq) + (aq) ==> AgCl(s)

practical process described pest part of scientific investigation.

because practical knowledge is powerful then therotical knowledge.

"record the time to complete a chemical reaction" would most likely be part of a lab procedure.