Video: Dab tsi yog alkalis thiab acids?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Alkalis muaj pH ntau dua 7 Cov khoom nruab nrab muaj pH sib npaug li 7. Cov kua qaub thiab alkalis ob leeg muaj ions. Cov kua qaub muaj ntau cov hydrogen ions, uas muaj lub cim H +. Alkalis muaj ntau hydroxide ions, cim OH-. Dej yog nruab nrab vim hais tias tus naj npawb ntawm hydrogen ions sib npaug rau cov hydroxide ions.
Hauv qhov no, dab tsi yog acid thiab alkaline?
Ib kua qaub yog ib yam khoom uas pub hydrogen ions. Vim tias lub hauv paus "soaks" hydrogen ions, qhov tshwm sim yog kev daws teeb meem nrog ntau hydroxide ions dua li hydrogen ions. Qhov kev daws teeb meem no yog alkaline . Acidity thiab alkalinity yog ntsuas nrog logarithmic scale hu ua pH.
Dab tsi yog acids thiab alkalis xyoo 7? Ib pH 7 yog nruab nrab (xws li dej); pH ntawm 1 lossis 2 yog qhov muaj zog kua qaub (piv txwv li sulfuric kua qaub ); qaug zog kua qaub xws li vinegar muaj pH ntawm 3 mus rau 6. Tsis muaj zog alkalis (zoo li xab npum) muaj pH qhov tseem ceeb ntawm 8 txog 10 thiab muaj zog alkali zoo li sodium hydroxide yuav muaj pH ntawm 13 lossis 14.
Kuj Paub, dab tsi yog acids thiab alkalis siv rau?
Peb siv cov kua qaub thiab alkalis nyob rau hauv peb lub neej niaj hnub rau tej yam xws li tu, ua noj thiab koj txawm noj thiab haus tej yam uas yog acidic los yog alkaline. Common lab kua qaub muaj xws li: Hydrochloric kua qaub . Sulfuric kua qaub.
Dab tsi yog alkali?
la?/; los ntawm Arabic: al-qaly " tshauv ntawm saltwort") yog ib qho yooj yim, ionic ntsev ntawm ib qho alkali hlau lossis alkaline ntiaj teb hlau tshuaj lom neeg. Ib alkali kuj tuaj yeem txhais tau tias yog lub hauv paus uas yaj hauv dej. Kev daws ntawm lub hauv paus soluble muaj pH ntau dua 7.0.
Pom zoo:
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Acids thiab ntsev yog dab tsi?
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Puas yog acids thiab alkalis opposites?
ACID yog ib yam khoom uas yaj hauv dej los tsim cov khoom zoo uas hu ua hydrogen ions (H+). Theopposite ntawm acid yog ib qho ALKALI uas yaj hauv dej los tsim cov ions tsis zoo ntawm hydrogen thiab oxygen hu ua hydroxide ions (OH-). Alkalis yog ANTI ACIDS vim lawv tshem tawm acidity