Milmaynta

Cashar 3 / 11

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Muuqaalka casharka

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Bogagga casharka

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Faahfaahinta casharka

Natiijada casharka

I can use the particle model to explain both how solutions form and how solutions differ from a suspension.

Muuji qoraalka

Suspensions are not solutions, as solid particles can be seen, and eventually will settle over time. Forces of attraction between solute particles have to be overcome for something to dissolve. In a mixture, one particle may fit into spaces between another type, making the total volume less than expected. Not every substance can be dissolved (is soluble) in a solvent. Dissolving is not the same as melting, but both are physical processes.

Warqadda shaqada

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Imtixaannada

1. Mid ka mid ah weedhahan soo socda ayaa run ku ah xal (solution)?
- Waxay leedahay walxo (particles) indhaha lagu arki karo.
- Jawaabta saxda ah:Waxay ka kooban tahay laba ama in ka badan oo walxo ah oo si isku mid ah isugu dar ah heerka walxaha (particle level).
- Waxay u kala baxdaa lakabyo (layers) marka la istaago.
- Waxaa lagu samayn karaa oo keliya dareere (liquids).
2. Maxaa ku dhacaya wadarta cufka (mass) walxaha la isku daro?
- Waxay lumiyaan cufkooda.
- Waxay helaan cuf dheeri ah.
- Jawaabta saxda ah:Wadarta cufkoodu wuxuu ahaanayaa isku mid.
- Wadarta cufkoodu wuxuu noqonayaa nuskiisii.

1. Maxay tahay sababta loo aan u tixgelinayn isku-dar (suspension) inuu yahay xal (solution)?
- Waxay leedahay bar dhalaal ah oo go'an.
- Jawaabta saxda ah:Qaybaha adag waa la arki karaa waxayna degen karaan.
- Waxay beddeshaa xaalad heerkul kala duwan.
- Waxay ka kooban tahay wasakh (impurities).
2. Maxay tahay sababta ay u khaldan tahay in la yiraahdo walax kasta waxaa lagu milmi karaa dareere (solvent)?
- La'aanta kicinta (stirring).
- Jawaabta saxda ah:Farqiga u dhexeeya milanka (solubility).
- Heerkulka sare.
- Jiritaanka wasakhda (impurities).
3. Inta lagu jiro habka milista (dissolving process), maxay tahay sababta uu solute ugu milo solvent-ka?
- Xoogagga soo jiidashada ee u dhexeeya solute-ka iyo solvent-ka ayaa ka tabar yar kuwa solute-ka iyo solute-ka.
- Qaybaha solute-ka ayaa ka weyn qaybaha solvent-ka.
- Jawaabta saxda ah:Xoogagga soo jiidashada ee u dhexeeya solute-ka iyo solvent-ka ayaa ka tabar xooggan kuwa solute-ka iyo solute-ka.
- Qaybaha solute-ka kuma dhacaan qaybaha solvent-ka.
4. Maxay tahay sababta ay wadarta mugga (volume) isku dhafka uga yaraan karto wadarta mugga qaybihiisa kala duwan?
- Uumid (evaporation) ayaa dhacda.
- Jawaabta saxda ah:Walxaha (particles) waxay ku habboonaan karaan meelaha bannaan ee dhexdooda.
- Falcelin kiimiko (chemical reaction) ayaa yaraynaysa mugga.
- Qalad cabbir (measurement error).
- Qaar ka mid ah dareeraha ayaa daatay markii la samaynayay isku dhafka.

Waxa ardaydu arkaan

Tan waa isla casharka sida ardaygu u arko. Waxaad qayb kasta u dirsan kartaa ardayda.

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Nuxurkan waxaa leh Cashar, waxaana lagu daabacay shatiga furan.