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Falcelinnada kiimikada: roobabka

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Waxaan qeexi karaa waxa dhacaya inta lagu jiro falcelinnada roobabka, oo aan u qori karaa isla'egyo kiimikaad si aan u muujiyo kuwaas.

Hordhac

Soo dhawoow darsiga maanta. Casharkani wuxuu ku saabsan yahay falcelinta roobabka (precipitation reactions), oo qayb ka ah cutubka fahamka falcelinta kiimikada. Waa inaad hore u garanaysaa waxa milan (solution) iyo adke yihiin, sidoo kale waa inaad aqoon u leedahay sida isleegyada ereyada (word equations) loo qoro.

Muuji qoraalka
Precipitation reactions occur when two solutions combine to form an insoluble solid. The appearance of a precipitate is evidence that a chemical reaction has occurred. Precipitation reactions are important in water treatment, to remove unwanted substances from water. Precipitation reactions are used in qualitative analysis, to identify the presence of certain substances in a solution.

Warqadda shaqada

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Imtixaannada

  1. 1. Warro, fallaadhda (→) ee isla'egta kiimikada (chemical equation) maxay ka dhigan tahay?

    • Waxay la mid tahay
    • Waxay la falgashaa
    • Jawaabta saxda ah:Waxay isu beddeshaa
    • Waxay ka yar tahay

  2. 2. Run ama been? Marka uu walax ku milmo ethanol, waxay samayn doontaa xal aqueous (aqueous solution).

    • Run
    • Jawaabta saxda ah:Been

  3. 3. Waa maxay runta ku saabsan milanka (solubility)?

    • Dhamaan adkaha (solids) waxay ku milaan biyaha.
    • Gaasaska (gases) kaliya ayaa ku mila biyaha.
    • Jawaabta saxda ah:Qaar ka mid ah walxaha ayaa ku mila biyaha, qaarna ma milaan.
    • Dhamaan dareeraha (liquids) waa kuwo aan milmi karin.

  4. 4. Kimisteriga, maxaa loola jeedaa "precipitation" (roobabka kiimikada)?

    • Jawaabta saxda ah:Sameynta adke (solid) ka soo baxa xal (solution).
    • Roob, baraf, dhaxan, ama wadaxa ku dhaca dhulka.
    • Habka dareere (liquid) u isu beddelo gaas (gas).
    • Adkaynta dhagaxa dhalaalay (molten rock).

  1. 1. Waa maxay precipitate (walaxda adag ee soo baxda)?

    • Walax ku milma biyaha.
    • Gaas ka soo baxa falcelinta kiimikada.
    • Dareere si dhakhso ah u uumaya.
    • Jawaabta saxda ah:Adag aan milmin oo ka soo baxa marka laba xal isku falceliyaan.

  2. 2. Maxay loo isticmaalaa falcelinta roobabka (precipitation reactions) falanqaynta tayada (qualitative analysis)?

    • Si loo cabbiro tirada walaxda.
    • Jawaabta saxda ah:Si loo xaqiijiyo joogitaanka walaxda.
    • Si loo kordhiyo heerkulka xal (solution).
    • Si loo milo adkaha ku jira xalka.

  3. 3. Ereygee ayaa qeexaya tijaabo kiimikaad oo xaqiijinaysa joogitaanka walax, iyada oo aan la qiyaasin tiradooda?

    • Falanqaynta tirada (quantitative analysis)
    • Falanqaynta iftiinka (spectroscopic analysis)
    • Jawaabta saxda ah:Falanqaynta tayada (qualitative analysis)
    • Falanqaynta roobka (precipitation analysis)

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