Double replacement reactions with net ionic and spectators
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This document discusses chemical equations and reactions. It explains word equations, formula equations, and ionic equations. Spectator ions that do not participate in the reaction are discussed. An example of a full and net ionic equation for a reaction between zinc fluoride and potassium carbonate is shown, identifying the spectator ions. Predicting products of other reactions is demonstrated.
Double replacement reactions with net ionic and spectators
- 1. Chemical Equations ! Word Equation – the names of the substances are given in words for you to interpret. Zinc plus Hydrochloric Acid yields Zinc chloride plus Hydrogen gas ! REACTANTS PRODUCTS
- 2. Chemical Equations ! Zinc plus Hydrochloric Acid yields Zinc chloride plus Hydrogen gas Zn(s) + HCl(aq) ____ + ____
- 3. Chemical Equations ! Zinc plus Hydrochloric Acid yields Zinc chloride plus Hydrogen gas Zn(s) + HCl(aq) ____ + ____
- 4. Chemical Equations ! Zinc plus Hydrochloric Acid yields Zinc chloride plus Hydrogen gas Zn(s) + HCl(aq) ____ + ____
- 5. Chemical Equations ! Zinc plus Hydrochloric Acid yields Zinc chloride plus Hydrogen gas Zn(s) + 2HCl(aq) ____ + ____
- 6. Interpreting chemical equations Al (OH)3 + 3HCl AlCl3 + 3 H2O SO WHAT DOES THIS MEAN???? One formula unit of aluminum hydroxide Reacts with 3 molecules of HCl To make one FU of aluminum chloride And three molecules of water
- 7. Ions in water solution When ionic substances dissolve in water their crystal lattice structure breaks up and they exist as IONS in water ! NaCl yields Na + plus Cl - KCl yields K+ plus Cl-
- 8. Ionic equations and spectators ! • Ionic equations simply show what is happening to the ions taking part in a reaction. • Spectator ions are those which do not actually participate in the reaction. • See solubility chart
- 9. Write the full and NET ionic equation which occurs when aqueous solutions of zinc fluoride and potassium carbonate react. ZnF2 (aq) + K2CO3 (aq) Zn CO3(s) + 2 KF(aq) Zn+2 + 2F-1 + 2K+ + CO3 -2 ZnCO3 (s) + 2K+ + 2F- Zn+2 + CO3 -2 ZnCO3 (s)
- 10. Predict the products When K reacts with MgF2 Mg + KF When Mg reacts with KF NO REACTION
- 11. Predict the products(assume reactants are aqueous) NaOH + KCl NaNO + KBr3 Ammonium Carbonate + Magnesium Chloride Magnesium carbonate as precipitate and ammonium ions and chloride ions as spectators