AQA Jun 2013 Paper 5 Q4

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do not write outside the box a magnesium oxide silicon dioxide and phosphorus v oxide are white solids but each oxide has a different type of structure and bonding state the type of bonding in magnesium oxide outline a simple experiment to demonstrate that magnesium oxide has this type of bonding type of bonding experiment marks b by reference to the structure of and the bonding in silicon dioxide suggest why it is insoluble in water marks wmp jun chem do not write outside the box c state how the melting point of phosphorus v oxide compares with that of silicon dioxide explain your answer in terms of the structure of and the bonding in phosphorus v oxide melting point in comparison to silicon dioxide explanation marks d magnesium oxide is classified as a basic oxide write an equation for a reaction that shows magnesium oxide acting as a base with another reagent marks e phosphorus v oxide is classified as an acidic oxide write an equation for its reaction with sodium hydroxide mark turn over wmp jun chem

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