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Falcelinnada kiimikada: oksaydhaynta

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Waxaan qeexi karaa falcelinnada oksaydhaynta, oo ay ku jiraan gubashada iyo mirashada, oo aan magacaabi karaa waxsoosaarka qaar ka mid ah falcelinnada oksaydhaynta.

Hordhac

Salaan, waxaan kula baranaynaa falcelinta kiimikada (chemical reactions), gaar ahaan oksaydhaysiga (oxidation). Casharkani wuxuu ka mid yahay cutubka "Fahamka falcelinta kiimikada", waa inaad hore u garanaysaa waxa uu yahay curiye (element) iyo iskudhis (compound).

Muuji qoraalka
Combustion requires fuel, heat and oxygen, and will not happen without one of them. When a substance reacts to combine with oxygen, this is called oxidation. Examples of oxidation are combustion and rusting. One of the products of oxidation is always an oxide, but the other products vary.

Warqadda shaqada

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Imtixaannada

  1. 1. Mid ka mid ah kuwan soo socda ayaa si fiican u sharxaya curiye (element)?

    • Walax ka kooban laba ama in ka badan noocyo atom oo kala duwan oo isku xidhan kiimiko ahaan.
    • Jawaabta saxda ah:Walax saafi ah oo ka kooban hal nooc oo atom kaliya.
    • Isku dhaf laba ama in ka badan oo walxo ah.
    • Walax aan isbedeli karin xaaladdeeda jireed.

  2. 2. Maxaa ku dhacaya wadarta cufka (mass) walxaha inta lagu jiro fal-celin kiimiko (chemical reaction)?

    • Wuu kordhaa.
    • Wuu yaraadaa.
    • Jawaabta saxda ah:Wuxuu ahaanayaa isku mid.
    • Wuxuu ku xidhan yahay fal-celinta.

  3. 3. {{}} waa walax ka kooban laba curiye (element) ama in ka badan oo isku xidhan kiimiko ahaan.

    • Jawaabta saxda ah:Isku-dhaf (compound)
    • Isku-qas (mixture)
    • Gaas (gas)
    • Xal aqueous (aqueous solution)

  4. 4. Waa maxay sababta ay muhiim u tahay in la raaco hababka badbaadada (safety protocols) ee shaybaarka (laboratory)?

    • Jawaabta saxda ah:Si looga hortago shilalka iyo dhaawacyada.
    • Si loo hubiyo natiijooyin sax ah oo tijaabooyinka laga helo.
    • Si loo ilaaliyo deegaanka.
    • Si loo dedejiyo tijaabooyinka.

  1. 1. Falcelinta oksaydhaysiga (oxidation) ee magnesium iyo oksijiin, kee baa ka mid ah waxyaabaha saxda ah ee soo baxa?

    • Magnesium chloride
    • Jawaabta saxda ah:Magnesium oxide
    • Magnesium hydroxide
    • Magnesium carbonate

  2. 2. Waa maxay saddexda shay ee lagama maarmaanka u ah in dabku (combustion) uu dhaco?

    • Jawaabta saxda ah:Shidaal (fuel)
    • Iftiin
    • Kulayl
    • Biyo
    • Ogsijiin (oxygen)

  3. 3. Waa maxay miridhku (rusting)?

    • Sameeca biyaha oo ku soo urura dusha birta.
    • Jawaabta saxda ah:Burburka (corrosion) birta ama steel marka ay jiraan biyo iyo oksijiin.
    • Dhalaalka birta marka heerkulku aad u sarreeyo.
    • Habka rinji lagu daadiyo dusha birta.
    • Falcelinta biraha iyo oksijiin si ay u sameeyaan bir-oksaydh (metal oxide).

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