Zvemukati
Zvinoenderana ne acidity yavo, zvinhu zvinomisikidzwa kupinda acidic, alkaline kana kwazvakarerekera. Asidhi inoyerwa mukati pH, iyo inomiririra inogona kuve hydrogen. Chinhu chisina kwazvakarerekera chine pH ye7.
Zvinhu zvine pH iri pasi pe7, zvinhu zvine acid. Acidity level ndeye pH 0. Acidity zvinoreva kuti kuwanda kwema hydrogen ions ane mhosva kwakakura kudarika kuya kwemahydroxyl ions asina kunaka (hydrogen uye oxygen).
Acids inozivikanwa ne:
- Sour kuravira
- Redden iyo litmus bepa
- Gadzira effervescence ne calcium carbonate
- Ivo vanoita nezvimwe simbi senge zinc kana iron.
- Ivo vanopedza simba zvigadziko
- Mune aqueous solution vanofambisa kupfuura kwemagetsi emagetsi
- Ivo anokuvadza kune zvipenyu matukisi senge ganda
- Dissolve zvinhu
Avo vane pH yakakura kupfuura vanomwe, zvinhu zvine alkaline. Iyo yepamusoro alkalinity nhanho iri pH 14. Alkalinity zvinoreva kuti iko kusunganidzwa zvisina kunaka kuchaiswa hydroxyl ions (hydrogen uye oksijeni) yakakura kudarika iyo inokwenenzverwa zvine mutsindo hydrogen ions. Alkalines, anonziwo mabhesi, anozivikanwa ne:
- Zvinorwadza
- Tile litmus bepa
- Izvo hazvifadzi kusvika pakubata
- Zvinhu izvo zvanyungudutswa neacid precipitate
- Mune aqueous solution ivo zvakare vanofambisa kupfuura kwemagetsi emagetsi
- Dissolve mafuta nesarufa
- Ivo neutralize acids
Mienzaniso yezvinhu zvisina kwazvakarerekera
- Mukaka: mukaka chinhu chisina kwazvakarerekera (pH 6.5). Nekudaro, kana ichinge yasangana nemijusi yegastric inova chinhu chine acid, saka, zvichipesana neizvo zvinowanzodavirwa, hazvikurudzirwe kuidya kana uchirwara nechirungurira.
- Mvura inomhanya: pombi yemvura kana pombi yemvura inofanira kunge iri chinhu chisina kwayakarerekera. Nekudaro, mvura inogona kuve ionized, zvichireva kuti mahydrogen ayo ion (akanaka akafuridzirwa) anogona kuwedzera nekuita acidic.
- Mineral mvura ine gas: Zvicherwa uye gasi mumvura ine mabhodhoro hazvichinje pH yemvura yemumabhodhoro zvakanyanya.
- Mineral mvura isina gasi
- Sipo yemvura: iyo ganda iri yepakati asidi (pH 5.5 inenge) nepo sipo dzakasimba dziine pH inopfuura 8. Masipo emvura zvigadzirwa zvinogadzirwa izvo acidity inowedzerwa kuti igone kusarerekera pH. Glycerin sipo inonzi "haina kwayakarerekera" nekuti ine pH yakafanana neganda, asi chemakemikari chinhu chine acid, sezvo pH yayo iri pasi pe7.
- Liquid yekuwacha sipo: sipo isina kwayakarerekera haina hukasha kumachira kupfuura sipo dzeacid.
- Ropa: pakati pe7.3 na7.4
- Mate: pakati pe6.5 na7.4
