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The product formed by burning sodium is dissolved in distilled water. Explain the observations made when a red and blue litmus papers are dipped in the solution formed.

Chemistry

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Step-by-step solution

3 steps

Huu hapa ni jibu la maswali yako:

Part a(i)

Kifaa V

Kifaa V kinatumika kushikilia chuma cha sodiamu na kukiweka kwenye mwali.
Kijiko cha kuunguza (Deflagrating spoon)\boxed{\text{Kijiko cha kuunguza (Deflagrating spoon)}}

Part a(ii)

Kifaa W

Kifaa W ni chombo kikubwa kinachoshikilia gesi ya oksijeni ambapo sodiamu inawaka.
Mtungi wa gesi (Gas jar)\boxed{\text{Mtungi wa gesi (Gas jar)}}

Part a(iii)

Rangi ya mwali

Sodiamu inawaka katika oksijeni na kutoa mwali wa rangi maalum.
Njano (Yellow)\boxed{\text{Njano (Yellow)}}

Part b· 3 steps

  1. Tambua bidhaa inayoundwa.

    Sodiamu inawaka katika oksijeni kuunda oksidi ya sodiamu.

    4Na(s)+O2(g)→2Na2O(s)4\text{Na(s)} + \text{O}_2\text{(g)} \to 2\text{Na}_2\text{O(s)}
  2. Eleza kinachotokea bidhaa inapoyeyushwa katika maji.

    Oksidi ya sodiamu ni oksidi ya kibasi. Inapoyeyushwa katika maji, huunda hidroksidi ya sodiamu, ambayo ni besi kali.

    Na2O(s)+H2O(l)→2NaOH(aq)\text{Na}_2\text{O(s)} + \text{H}_2\text{O(l)} \to 2\text{NaOH(aq)}
  3. Eleza uchunguzi wa karatasi za litmus.

    Hidroksidi ya sodiamu ni besi kali. Besi hubadilisha karatasi nyekundu ya litmus kuwa bluu na haziathiri karatasi ya bluu ya litmus.

    • Karatasi ya litmus nyekundu itageuka bluu.
    • Karatasi ya litmus bluu itabaki bluu. Hii ni kwa sababu hidroksidi ya sodiamu iliyoundwa ni besi kali.
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