Required practical 1 Make up a volumetric solution and carry out a simple acid–base titration. 3.2.2 1.4 Explain the trends in atomic Students plot graphs of atomic June 2012 Limestone (RSC) 2, the alkaline radius and first ionisation radius and first ionisation energy, Unit 2 Q5 earth metals. energy. and explain the trends. June 2006 The trends in atomic Explain the melting point of Practical activities: Unit 1 Q5a 2 reactions: making a mind map radius, first ionisation the elements in terms of energy and melting their structure and bonding. Reactions of Mg–Ba with water and January 2005 point of the elements Mg with steam. Unit 1 Q5b Mg–Ba Describe the reactions of Mg– Ba with water. Testing solubilities of hydroxides January 2012 The reactions of the and sulfates by precipitation Unit 2 Q7 elements Mg–Ba with Describe the relative reactions water. solubilities of the hydroxides and sulfates. Test a variety of solutions with The use of magnesium NaOH/H2SO4 to identify unknown in the extraction of Recall the use of compounds. titanium from TiCl4 magnesium in the extraction of Ti Students write full and ionic The relative solubilities equations for these reactions and of the hydroxides of the Give the uses of Ca(OH)2. for a variety of other precipitation elements Mg–Ba in Mg(OH)2, CaO and BaSO4 reactions. water. Explain why BaCl2 solution The relative solubilities is used to test for sulfate of the sulfates. ions and why it is acidified. Uses of some Group 2 compounds.
Required practical 1 Make up a volumetric solution and carry out a simple acid–base titration. 3.2.2 2, the alkaline earth metals. The trends in atomic radius, first ionisation energy and melting point of the elements Mg–Ba The reactions of the elements Mg–Ba with water. The use of magnesium in the extraction of titanium from TiCl4 The relative solubilities of the hydroxides of the elements Mg–Ba in water. The relative solubilities of the sulfates. Uses of some Group 2 compounds. 1.4 Explain the trends in atomic radius and first ionisation energy. Explain the melting point of the elements in terms of their structure and bonding. Describe the reactions of Mg– Ba with water. Describe the relative solubilities of the hydroxides and sulfates. Recall the use of magnesium in the extraction of Ti Give the uses of Ca(OH)2. Mg(OH)2, CaO and BaSO4 Explain why BaCl2 solution is used to test for sulfate ions and why it is acidified. Students plot graphs of atomic radius and first ionisation energy, and explain the trends. Practical activities: Reactions of Mg–Ba with water and Mg with steam. Testing solubilities of hydroxides and sulfates by precipitation reactions Test a variety of solutions with NaOH/H2SO4 to identify unknown compounds. Students write full and ionic equations for these reactions and for a variety of other precipitation reactions. June 2012 Unit 2 Q5 June 2006 Unit 1 Q5a January 2005 Unit 1 Q5b January 2012 Unit 2 Q7 Limestone (RSC) 2 reactions: making a mind map
AQA-7404-B-SOW.DOCX