Topic 9 Reactions of Acids.

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Presentation transcript:

Topic 9 Reactions of Acids

Acids and Metal Carbonates Experiment Aim: To investigate the reaction between metal carbonate and acids. Method: Limewater Acid Metal Carbonate

Effect of gas produced on Results: Effect of gas produced on Reaction Limewater Sodium Carbonate + ________ Copper carbonate + _________ Conclusion: Carbonates react with acids to produce CO2(g) which is an acidic gas.

Acids and Metal Carbonates Carbonate rocks are used in a lot of buildings. When acid rain falls on these buildings the acid reacts with the carbonate in a neutralisation reaction. Metal Carbonate +Acid  Salt+Water+Carbon dioxide Calcium carbonate  Calcium chloride+ +Hydrochloric acid water+carbon dioxide CaCO3 + HCl  CaCl2 + H2O + CO2

Examples Calcium carbonate  Calcium nitrate + water + Nitric acid + carbon dioxide CaCO3 + 2HNO3  Ca(NO3)2 + H2O + CO2

Magnesium carbonate+  Magnesium chloride hydrochloric acid + water +carbon dioxide MgCO3 + HCl  MgCl2 + H2O + CO2 In these reactions the H+ of the acid reacts with the CO3- ions of the metal carbonate to form water and carbon dioxide. The H+ ion is replaced by the metal ion: Neutralisation reaction.