How to Write Net Ionic Equations Applying Solubility Rules.

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Presentation transcript:

How to Write Net Ionic Equations Applying Solubility Rules

How to Write Net Ionic Equations Solve the problem, showing all steps Step 1: Predict the products of the double displacement reaction and ensure that the equation is balanced. Na 2 S + FeSO 4 → Na 2 SO 4 + FeS

How to Write Net Ionic Equations Step 2: Use “aq” and “s” to identify each species as being soluble and which will form precipitates This is known as the balanced molecular equation. Na 2 S (aq) + FeSO 4 (aq) → Na 2 SO 4 (aq) + FeS(s)

How to Write Net Ionic Equations Step 3: Write the ionic equation by breaking up soluble species into their ions. This is known as the complete ionic equation, total ionic equation, or ionic equation. 2Na + (aq) + S 2- (aq) + Fe 2+ (aq) + SO 4 2- (aq) → 2Na +( aq) + SO 4 2- (aq) + FeS(s)

How to Write Net Ionic Equations Step 4: Cancel out all spectator ions (ions that do not combine to form the precipitate) and rewrite the equation. 2Na + (aq) + S 2 -(aq) + Fe 2+ (aq) + SO 4 (aq) → 2Na+(aq) + SO 4 2- (aq) + FeS(s)

How to Write Net Ionic Equations This gives the net ionic equation (an equation that only has the ions that recombine to form the precipiate, as well as the precipitate product). S 2- (aq) + Fe 2+ (aq) → FeS(s)

How to Write Net Ionic Equations Solve the problem, showing all steps BaCl 2 + Na 3 PO 4 →

How to Write Net Ionic Equations Step 1: Predict the products of the double displacement reaction and ensure that the equation is balanced.

How to Write Net Ionic Equations Step 2: Use “aq” and “s” to identify each species as being soluble and which will form precipitates

How to Write Net Ionic Equations Step 3: Write the ionic equation by breaking up soluble species into their ions.

How to Write Net Ionic Equations Step 4: Cancel out all spectator ions and rewrite the equation.

How to Write Net Ionic Equations This gives the net ionic equation.