Precipitation Reactions & Net Ionic Equations

Front

What is a precipitation reaction?

Back

A precipitation reaction is a chemical reaction in which two soluble salts react in solution to form an insoluble salt, known as a precipitate.

Front

What is a net ionic equation?

Back

A net ionic equation shows only the species that actually participate in the reaction, omitting the spectator ions.

Front

What does the abbreviation (s) indicate in a chemical equation?

Back

The abbreviation (s) indicates that the substance is a solid.

Front

What is the role of spectator ions in a precipitation reaction?

Back

Spectator ions are ions that do not participate in the actual precipitation reaction and remain unchanged in the solution.

Front

How do you identify a precipitate in a chemical reaction?

Back

A precipitate can be identified as a solid that forms and separates from a solution during a chemical reaction.

Front

What is the complete ionic equation for the reaction of Pb(NO3)2 and KI?

Back

Pb^2+ + 2NO3^- + 2K^+ + 2I^- → PbI2(s) + 2K^+ + 2NO3^-.

Front

What happens when NaCl is dissolved in water?

Back

When NaCl is dissolved in water, it dissociates into individual sodium (Na^+) and chloride (Cl^-) ions.

Front

What is the result of mixing potassium bromide and ammonium sulfide?

Back

No precipitate is formed when potassium bromide and ammonium sulfide are mixed.

Front

What is the significance of writing (aq) in a chemical equation?

Back

(aq) indicates that the substance is dissolved in water, forming an aqueous solution.

Front

Which compound does not form ions in the complete ionic equation for the reaction of Pb(NO3)2 and KI?

Back

PbI2 does not form ions in the complete ionic equation.