Astaamaha falcelinnada kiimikada

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Waxaan qeexi karaa qaar ka mid ah isbeddellada muujinaya in falcelin kiimikaad ay dhacayso.

Hordhac

Soo dhaowow casharkayaga maanta ee la yiraahdo astaamaha falgalka kiimikada (chemical reaction). Kahor intaadan daawashada billaabin, waa inaad hore u garanaysaa faraqa u dhexeeya walaxda (substance) iyo isku dhafka (mixture), sidoo kale waa inaad aqoon u leedahay sida walxuhu u isbeddelaan marka la kululeeyo ama la qaboojiyo.

Muuji qoraalka

Characteristics of chemical reactions include changes in colour, bubbling, or a change of temperature. Bubbles appear when a gas is produced in a chemical reaction. In a chemical reaction, atoms rearrange themselves to form new substances. Generally, chemical reactions are irreversible.

Warqadda shaqada

weli lama diyaarin

Imtixaannada

1. Mid ka mid ah kuwan soo socda waa tusaale isbeddel kiimiko (chemical change)?
- Baraf dhalaalaya
- Biyo karkaraya
- Jawaabta saxda ah:Bir mirxaysa (rusting)
- Sonkor milmaysa
2. Mid ka mid ah kuwan soo socda ayaa matalaya isbeddel jireed (physical change)?
- Gubista qoryaha
- Dubista keega
- Jawaabta saxda ah:Milanka sonkorta ee biyaha
- Dheefshiidka cuntada
3. Waa maxay farqiga ugu weyn ee u dhexeeya isbeddelka jireed (physical change) iyo isbeddelka kiimikaad (chemical change)?
- Isbeddelka jireed wuxuu soo saaraa walxo cusub, isbeddelka kiimikaadna ma soo saaro.
- Jawaabta saxda ah:Isbeddelka kiimikaad wuxuu soo saaraa walxo cusub, isbeddelka jireedna ma soo saaro.
- Isbeddelka jireed waa mid aan laga noqon karin, isbeddelka kiimikaadna waa mid laga noqon karo.
- Isbeddelka kiimikaad wuxuu ku lug leeyahay oo kaliya isbeddelka xaaladda (state).

1. Waa maxay falcelin kiimikaad (chemical reaction)?
- Hab ay atamku (atoms) isku sii joogaan iyagoon isbeddelin
- Jawaabta saxda ah:Hab ay atamku (atoms) dib loogu habeeyo si ay u sameeyaan walxo cusub
- Isbeddel jireed (physical change)
- Isbeddel ku meel gaar ah
2. Isleeg kiimikaad (chemical equation) dhexdiisa, halkee ayay ku yaalaan alaabta (products) la soo saaro?
- Dhanka bidix
- Jawaabta saxda ah:Dhanka midig
3. Waa maxay waxa ay muujinayaan xumbooyinku (bubbles) marka ay dhacdo fal-celin kiimiko (chemical reaction)?
- Dareere ayaa uumayaya
- Jawaabta saxda ah:Gaas (gas) ayaa la soo saarayaa
- Adke (solid) ayaa milmayaya
- Walax ayaa dhalaalaysa
4. Waa maxay indho-indheyn (observation) had iyo jeer muujinaysa in falgal kiimiko (chemical reaction) dhacay?
- Jawaabta saxda ah:Roobka (precipitation)
- Milmaynta (dissolving)
- Xumbo-baxa (bubbling)
- Dhalaalka (melting)

Waxa ardaydu arkaan