AQA Jun 2017 Paper 1 Q6

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12 0 6 0 6 This question is about some Period 3 elements and their oxides. . 1 Write an equation for the reaction of phosphorus with an excess of oxygen.[1 mark] 0 6 . 2 0 6 . 3 0 6 . 4 Describe a test you could carry out in a test tube to distinguish between sodium oxide and the product of the reaction in Question 6.1 [3 marks] State the type of crystal structure shown in silicon dioxide and in sulfur trioxide. [2 marks] Silicon dioxide Sulfur trioxide Explain why silicon dioxide has a higher melting point than sulfur trioxide. [4 marks] *12* IB/M/Jun17/7405/1<br /> 130 6 . 5 Write an equation for the reaction of sulfur trioxide with potassium hydroxide solution. [1 mark] [1 mark] 0 6 . 7 0 6 . 6 Write an equation for the reaction of an excess of magnesium oxide with phosphoric acid. Draw the displayed formula of the undissociated acid formed when sulfur dioxide reacts with water. [1 mark] 13 Turn over for the next question *13* Turn overIB/M/Jun17/7405/1<br />

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