Determine whether a solid forms when solutions containing the following salts are mixed. If so, write the ionic equation and the net ionic equation.
KCl and Na2S
To determine whether a solid forms when solutions containing the salts KCl and Na2S are mixed, we need to check if a precipitation reaction occurs. Precipitation reactions occur when two soluble salts combine to form an insoluble salt called a precipitate.
First, we need to determine the solubilities of KCl and Na2S. KCl is a soluble salt, meaning it dissolves completely in water. Na2S, on the other hand, is also a soluble salt and dissolves completely in water.
Since both KCl and Na2S are soluble salts, when their solutions are mixed, they will not react to form a solid precipitate. Hence, no solid will form when solutions containing KCl and Na2S are mixed.
Therefore, there is no ionic equation or net ionic equation to write for the mixing of KCl and Na2S solutions because no reaction occurs.
You need to study (and memorize) the solubilities of salts. Here is a simplified set of rules.
http://www.files.chem.vt.edu/RVGS/ACT/notes/solubility_rules.html