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Revision:Equations of reactions of period 3 elements with oxygen and chlorine

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TSR Wiki > Study Help > Subjects and Revision > Revision Notes > Chemistry > Equations of reactions of period 3 elements with oxygen and chlorine

Contents

Period 3 Elements with Oxygen

  • Sodium: \mathsf{4Na_{(s)} + O_{2(g)} \longrightarrow 2Na_2O_{(s)}}


  • Sodium: \mathsf{2Na_{(s)} + O_{2(g)} \longrightarrow Na_2O_{2(s)}}


  • Magnesium: \mathsf{2Mg_{(s)} + O_{2(g)} \longrightarrow 2MgO_{(s)}}


  • Aluminium: \mathsf{4Al_{(s)} + 3O_{2(g)} \longrightarrow 2Al_2O_{3(s)}}


  • Silicon: \mathsf{Si_{(s)} + O_{2(g)} \longrightarrow SiO_{2(s)}}


  • Phosphorus: \mathsf{P4_{(s)} + 5O_{2(g)} \longrightarrow P_4O_{10(s)}}


  • Sulphur: \mathsf{S_{(s)} + O_{2(g)} \longrightarrow SO_{2(g)}}


  • Sulphur: \mathsf{2S_{(s)} + 3O_{2(g)} \longrightarrow 2SO_{3(g)}}


Chlorine does not react directly with water but Cl2O does exist.

Period 3 Elements with Chlorine

  • Sodium: \mathsf{2Na_{(s)} + Cl_{2(g)} \longrightarrow 2NaCl_{(s)}}


  • Magnesium: \mathsf{Mg_{(s)} + Cl_{2(g)} \longrightarrow MgCl_{2(s)}}


  • Aluminium: \mathsf{2Al_{(s)} + Cl_{2(g)} \longrightarrow AlCl_{3(s)}}


  • Aluminium: \mathsf{2Al_{(s)} + 3Cl_{2(g)} \longrightarrow Al_2Cl_{6(g)}}


  • Silicon: \mathsf{Si_{(s)} + Cl_{2(g)} \longrightarrow SiCl_{4(l)}}


  • Phosphorus: \mathsf{2P_{(s)} + Cl_{2(g)} \longrightarrow 2PCl_{3(l)}}


  • Phosphorus: \mathsf{PCl_{3(s)} + Cl_{2(g)} \longrightarrow PCl_{5(s)}}


  • Sulphur: \mathsf{S_{(s)} + Cl_{2(g)} \longrightarrow SCl_{2(l)}}


Period 3 Elements with Water

  • Sodium: \mathsf{2Na_{(s)} + Cl_{2(g)} \longrightarrow 2NaCl_{(s)}}


  • Magnesium: \mathsf{Mg_{(s)} + H_2O_{(g)} \longrightarrow MgO_{(s)} + H_{2(g)}}


  • Chlorine: \mathsf{Cl_{2(g)} + H_2O \longrightarrow HOCl_{(aq)} + HCl_{(aq)}}


Sulphur, phosphorus and silicon don't react.


  • Aluminium: \mathsf{2Al_{(s)}+ Cl_{2(g)} \longrightarrow AlCl_{3(s)}}

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