M2/3/5 - Ionic equations
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Write the ionic equation for nitric acid reacting with sodium hydroxide What type of reaction is this?
H+(aq) + OH-(aq) –> H2O(l) Neutralisation!
Write the ionic equation for hydrochloric acid reacting with magnesium carbonate What would you observe here?
2H+(aq) + CO32-(s) –> H2O(l) + CO2(g) Bubbles of gas and solid dissolving Remember - this is the qual test for carbonates!
Write the ionic equation for phosphoric acid reacting with potassium oxide What would you observe here?
2H+(aq) + O2-(s) –> H2O(l) Solid dissolving
Write the ionic equation for sulfuric acid reacting with ammonia
H+(aq) + NH3(aq) –> NH4+(aq)
Write the ionic equation for sulfuric acid reacting with Magnesium What type of reaction is this?
2H+(aq) + Mg(s) –> H2(g) + Mg2+(aq) Redox!
Write the ionic equation for barium nitrate reacting with sodium sulfate What would you observe here?
Ba2+(aq) + SO42-(aq) –> BaSO4(s) White precipitate Remember - this is the Qual test for Sulfates!
Write the ionic equation for silver nitrate reacting with sodium chloride What would you observe here?
Ag+(aq) + Cl-(aq) –> AgCl(s) White precipitate Remember - this is the Qual test for Halides!
Write the ionic equation for sodium hydroxide reacting with ammonium chloride What would you observe here?
OH-(aq) + NH4+ –> NH3(g) + H2O(l) Red litmus paper turns blue Remember - this is the Qual test for Ammonium!
Write the ionic equation for sodium hydroxide reacting with Copper (II) Chloride What would you observe here?
2OH-(aq) + Cu2+ –> Cu(OH)2(s) Blue precipitate forms Remember - this is the Qual test for Trans metal ions
Write the ionic equation for small amounts of ammonia solution reacting with Chromium (III) sulfate What would you observe here?
3OH-(aq) + Cr3+ –> Cr(OH)3(s) grey-green precipitate forms Remember - this is the Qual test for Trans metal ions Ammonia is an alkali so contains hydroxide ions when dissolved in water!