Kimia

Iyini Isixazululo Se-Hypertonic? Emakilasini ekhemistri kanye ne-biology, igama elithi isixazululo se-hypertonic livame ukuvela lapho kuxoxwa ngokuhamba kwamanzi ngokusebenzisa ulwelwesi lwamaseli, ibhalansi yoketshezi lomzimba, kanye nokusetshenziswa kwalo kwezokwelapha. Nakuba kungase kuzwakale njengobuchwepheshe, umqondo wesisombululo se-hypertonic empeleni kulula kakhulu ukuwuqonda uma siqonda isihluthulelo: umehluko ekugxilweni kwe-solute nokuthi lowo mehluko "udonsa" kanjani amanzi ukuze ahambe. … Funda kabanzi

Izakhiwo Nokusetshenziswa Kwama-Silicon Compounds I-Silicon ingenye yezinto ezibaluleke kakhulu empilweni yanamuhla, yize ivame ukudidaniswa ne-"silica" noma "silicon" ezimweni zansuku zonke. I-Silicon (Si) iyi-chemical element enenombolo ye-athomu engu-14 futhi itholakala kakhulu oqweqweni loMhlaba, ngokuvamile kuma-compounds, hhayi njenge-free element. Iyisisekelo sezinto ezahlukahlukene—kusukela... Funda kabanzi

Ukusabela Kwamakhemikhali Enqubweni Yokugqwala Ukugqwala kungenye yezinto eziphathelene kakhulu nokuphila kwansuku zonke, kodwa umthelela wayo ungaba mkhulu kakhulu. Kusukela ezicingweni ezigqwala kuya ezinhlakeni zezimoto ezibuthakathaka kuya kumapayipi ezimboni avuzayo—konke kungaqala ngenqubo yokugqwala. Kalula nje, ukugqwala kungaqondwa njengokuwohloka kwezinto (ikakhulukazi izinsimbi) ngenxa yokusabela kwamakhemikhali noma... Funda kabanzi

Ukuqonda iMetabolism Eyisisekelo Neyesibili IMetabolism iwuchungechunge lonke lokusabela kwamakhemikhali okwenzeka ngaphakathi kwamaseli ezinto eziphilayo ukuze kugcinwe impilo. Ngokusebenzisa i-metabolism, izinto eziphilayo zithola amandla, zakha futhi zilungise izakhiwo zomzimba, futhi zizivumelanise nezinguquko zemvelo. Ngokuvamile, i-metabolism ihlukaniswe ngamaqembu amabili amakhulu: i-metabolism eyinhloko kanye ne-metabolism yesibili. Zombili zibaluleke ngokulinganayo, … Funda kabanzi

Umsebenzi Weshubhu Le-Nessler kuKhemistri Yokuhlaziya Kukhemistri yokuhlaziya, ukunemba kokulinganisa kuvame ukunqunywa ukuthi umhlaziyi ulawula kahle kangakanani izinto ezincane ezithinta imiphumela. Ngaphezu kwezinsimbi zesimanje ezifana nama-spectrophotometer, kunezinto ezilula zeglasi ezihlala zibalulekile ngenxa yemisebenzi yazo ethile nesebenzayo. Enye into enjalo yishubhu le-Nessler. Nakuba libukeka njengeshubhu lokuhlola elijwayelekile, … Funda kabanzi

Kuyini i-Acid-Base Titration? I-Acid-base titration iyindlela yokuhlaziya amakhemikhali evame ukusetshenziswa emalabhorethri ukuthola ukuhlushwa kwesisombululo se-asidi noma sesisekelo. Le ndlela ilula ngomqondo, kodwa ibaluleke kakhulu ekusebenzeni, ikakhulukazi kwezemfundo, embonini, kwezemithi, ekudleni, kanye nasendaweni ezungezile. I-Titration isenza sikwazi ukuthola ukuhlushwa kwento... Funda kabanzi

Ukusetshenziswa Kwegesi Ye-Nitrogen Embonini Igesi ye-Nitrogen (N₂) ingenye yamagesi amaningi kakhulu emkhathini woMhlaba, yakha cishe u-78% womoya. Naphezu kobuningi bayo, i-nitrogen yegesi inezici ezihlukile: ayisebenzi kahle (ayisabeli kalula), ayinambala, ayinaphunga, futhi ayinabo ubuthi uma isezingeni elijwayelekile. Lezi zakhiwo zenza i-nitrogen ibe yigugu kakhulu... Funda kabanzi

Izakhiwo Zamakhemikhali Zezinto Zomhlaba Ezine-Alkaline Izinto zomhlaba ezine-alkaline ziyiqembu lezinto ezisetafuleni le-periodic ezikuqembu le-IIA (iqembu lesi-2), okuyi-beryllium (Be), i-magnesium (Mg), i-calcium (Ca), i-strontium (Sr), i-barium (Ba), kanye ne-radium (Ra). Leli qembu libizwa ngokuthi "umhlaba we-alkaline" ngoba ama-oxide awo ayi-basic (alkaline) futhi ezinsukwini zokuqala ze-chemistry zazivame ukutholakala kumaminerali "omhlaba"... Funda kabanzi

Ukuhlonza Ama-Acid kanye Nezisekelo Ukuhlonza ama-acid kanye nezisekelo kuyikhono eliyisisekelo kodwa elibalulekile kumakhemikhali, kungaba ngomsebenzi wesikole, ukuhlolwa kwelebhu, noma ukusetshenziswa kwansuku zonke. Izinto eziningi esizithola endlini—njengeviniga, izithelo ze-citrus, insipho, kanye nensipho—zinezakhiwo ze-asidi noma eziyisisekelo. Ngokuqonda ukuthi singazibona kanjani, singaba siphephile lapho sisebenzisa amakhemikhali, futhi… Funda kabanzi

Ukusetshenziswa kwe-Benzoic Acid Njengesilondolozi I-Benzoic acid iyisilondolozi esisetshenziswe isikhathi eside embonini yokudla neziphuzo. Lesi sithako saziwa ukuthi siyasebenza ekuvimbeleni ukukhula kwamagciwane abangela ukonakala kokudla, ikakhulukazi isikhunta nemvubelo. Ngenxa yezakhiwo zayo ezizinzile, ukulula kokusetshenziswa, kanye nokungabizi, i-benzoic acid iyindlela ethandwayo yokugcina ikhwalithi yokudla. … Funda kabanzi