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When Magnesium metal is burnt in air, it reacts with both oxygen and nitrogen gases giving a white solid. Write two equations for the reactions that take place. (2 marks)

Chemistry

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Answer

2Mg(s)+O2(g)⟶2MgO(s)2\text{Mg(s)} + \text{O}_2\text{(g)} \longrightarrow 2\text{MgO(s)}

3Mg(s)+N2(g)⟶Mg3N2(s)3\text{Mg(s)} + \text{N}_2\text{(g)} \longrightarrow \text{Mg}_3\text{N}_2\text{(s)}

Step-by-step solution

2 steps

Hapa kuna majibu kwa swali la 2:

Swali linauliza kuandika milinganyo miwili ya kemikali wakati chuma cha Magnesiamu (Magnesium metal) kinapochomwa hewani, kikijibu na gesi ya oksijeni na nitrojeni, na kutoa dutu nyeupe imara.

  1. Andika mlinganyo wa Magnesiamu ikijibu na Oksijeni.

    Magnesiamu (Mg) inajibu na oksijeni (O₂) kuunda oksidi ya magnesiamu (Magnesium oxide, MgO), ambayo ni dutu nyeupe imara.

    2Mg(s)+O2(g)⟶2MgO(s)2\text{Mg(s)} + \text{O}_2\text{(g)} \longrightarrow 2\text{MgO(s)}
  2. Andika mlinganyo wa Magnesiamu ikijibu na Nitrojeni.

    Magnesiamu (Mg) pia inajibu na nitrojeni (N₂) kuunda nitridi ya magnesiamu (Magnesium nitride, Mg₃N₂), ambayo pia ni dutu nyeupe imara.

    3Mg(s)+N2(g)⟶Mg3N2(s)3\text{Mg(s)} + \text{N}_2\text{(g)} \longrightarrow \text{Mg}_3\text{N}_2\text{(s)}

    Miliganyo miwili ni:

    1. 2Mg(s)+O2(g)⟶2MgO(s)\boxed{2\text{Mg(s)} + \text{O}_2\text{(g)} \longrightarrow 2\text{MgO(s)}}
    2. 3Mg(s)+N2(g)⟶Mg3N2(s)\boxed{3\text{Mg(s)} + \text{N}_2\text{(g)} \longrightarrow \text{Mg}_3\text{N}_2\text{(s)}}
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