Shaqo ficil: xal u dhigma oo ka sameysan kaabajka cas

Cashar 7 / 7

Muuqaalka casharka

0:00 / 0:00

Bogagga casharka

Faahfaahinta casharka

Natiijada casharka

Waxaan samayn karaa xal u dhigma oo ka sameysan kaabajka cas waxaana u isticmaali karaa in aan ku tijaabiyo xalalka si aan u ogaado inay yihiin aashito ama alkali.

Hordhac

Soo dhawoow casharka maanta. Waa cashar wax ku ool ah oo lagu eegayo samaynta milanka calaamadeeya (indicator) kaabashka guduudan, kaas oo qayb ka ah cutubka Acids iyo Bases. Kahor intaadan bilaabin, waa inaad hore uga warqabtaa fikradaha aasaasiga ah ee acid iyo alkali, iyo sida loo isticmaalo miisaanka pH (pH scale) si aad u kala saarto milannada kala duwan.

Muuji qoraalka

Red cabbage solution is pink or red in an acid, purple in a neutral solution, and green in an alkali. Different chemical indicators have their advantages and disadvantages. Universal indicator will turn many different colours depending on pH.

Warqadda shaqada

weli lama diyaarin

Imtixaannada

1. Waa kee mid ka mid ah weedhahan ku saabsan dareerayaasha (solvents) ee sax ah?
- Jawaabta saxda ah:Dareere uu walax ku milmo.
- Isku darka ka soo baxa marka adkaha uu ku milmo dareere.
- Awoodda uu walax u leeyahay inuu ku milmo dareere.
- Dareere aan walax ku milmi karin.
2. Waa kuwee labada eray oo ka mid ah kuwan soo socda oo loo isticmaali karo in lagu sharaxo walax ku milmi karta dareere (liquid)?
- Jawaabta saxda ah:solute (walaxda lagu milo)
- soluble (milmi kara)
- solution (xal)
- solvent (dareeraha milmiya)
3. Qaar ka mid ah miisaanka pH waxay u dhexeeyaan 0 ilaa 14. Keeb mid ka mid ah kuwan soo socda ayaa qeexaya walax leh pH ah 0?
- Jawaabta saxda ah:aashito aad u xoog badan (acid)
- alkali aad u xoog badan
- dhexdhexaad (neutral)
4. Heerka pH-ga ee inta badan la isticmaalo wuxuu u dhexeeyaa 1 ilaa 14. Waa maxay macnaha ereyga 'range' (kala duwanaansho)?
- Qiimaha ugu weyn ee tijaabada.
- Qiimaha ugu yar ee tijaabada.
- Wadarta qiimaha ugu weyn iyo kan ugu yar.
- Jawaabta saxda ah:Farqiga u dhexeeya qiimaha ugu weyn iyo kan ugu yar.

1. Ardaygu wuxuu isticmaalaa kaabajka guduudan si uu u sameeyo tilmaame (indicator). Xalka la soo saaray aad buu u khafiif yahay si uu u muujiyo isbeddel midab. Sidee loo hagaajin karaa habka lagu sameeyo tilmaamaha?
- Isticmaal biyo badan iyo kaabaj guduudan oo yar.
- Jawaabta saxda ah:Isticmaal biyo yar iyo kaabaj guduudan oo badan.
- Isticmaal biyo yar iyo kaabaj guduudan oo yar.
- Isticmaal kaabaj cagaaran halkii kaabajka guduudan.
2. Waa maxay mid ka mid ah shayga soo socda ee qeexaya waxa loo isticmaalo moorta iyo sibidhka (mortar and pestle)?
- Jawaabta saxda ah:jajabinta walxaha
- isku qasidda walxaha
- milidda walxaha
- kululaynta walxaha
3. Maxaa ka mid ah weedhahan soo socda oo sharxaya sababta loo isticmaalo kaabajka cas iyo litmus inay ka yar yihiin kuwa tilmaamaha guud (universal indicator) ee muujinta pH-ga walaxda?
- Jawaabta saxda ah:Litmus si cad uma muujinayo marka xalku yahay pH 7.
- Kaabajka cas uma muujinayo marka xalku yahay pH 7.
- Tilmaamaha guud (universal indicator) wuxuu isu beddelaa midab kala duwan pH kasta oo u dhexeeya 1 ilaa 14.
- Litmus-ka cas iyo buluugga ah ayaa ka fiican tilmaamayaasha pH-ga marka loo eego kaabajka cas.
4. Walax la milmi kara ayaa ku milma milire (solvent). Haddii miliruhu yahay biyo, waa maxay magaca loo bixiyo sal (base) la milmi kara?
- aashito (acid)
- Jawaabta saxda ah:alkali
- hydrogen
- dhexdhexaad (neutral)

Waxa ardaydu arkaan