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AS CHEMISTRY Paper 1 JUNE 2021 - Inorganic and Physical Chemistry question paper

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AS CHEMISTRY Paper 1 JUNE 2021 - Inorganic and Physical Chemistry question paper This question is about magnesium and its compounds. 0 2 . 1 State one observation when magnesium reacts with steam. ... Give an equation, including state symbols, for this reaction. [2 marks] Observation Equation 0 2 . 2 Describe the bonding in magnesium. [2 marks] 0 2 . 3 Explain, in terms of structure and bonding, why magnesium chloride has a high melting point. [3 marks] 0 2 . 4 Give one medical use for magnesium hydroxide. [1 mark] 8'This question is about redox reactions. 0 3 . 1 State, in terms of electrons, the meaning of the term oxidising agent. [1 mark] 0 3 . 2 Cr2O7 2– can oxidise SO3 2– in acidic conditions to form Cr3+ and SO4 2– Deduce a half-equation for the oxidation of SO3 2– to SO4 2– Deduce a half-equation for the reduction of Cr2O7 2– to Cr3+ Deduce the overall equation for the oxidation of SO3 2– by Cr2O7 2– [3 marks] Half-equation for the oxidation of SO3 2– to SO4 2– Half-equation for the reduction of Cr2O7 2– to Cr3+ Overall equation Turn over for [Show More]

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