Video: Dab tsi yog qee qhov qaug zog acids?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
A qaug zog acid yog ib kua qaub uas tsis tsim ntau hydrogen ions thaum nyob rau hauv aqueous tov. Tsis muaj kua qaub muaj tus nqi pH tsawg thiab siv los ua kom tsis muaj zog hauv paus. Piv txwv ntawm tsis muaj zog acids muaj xws li: acetic kua qaub (xws li vinegar), lactic kua qaub , citric qab kua qaub , thiab phosphoric kua qaub.
Kuj paub, uas yog cov tsis muaj zog acids?
A qaug zog acid yog ib kua qaub tshuaj uas tsis dissociate (sib cais rau hauv ions) kiag li nyob rau hauv dej tov. Qhov no txhais tau tias nws tsis muab tag nrho nws cov hydrogen ions rau hauv dej. Tsis muaj kua qaub feem ntau muaj pH ntawm 3 thiab 6. acetic kua qaub (CH3COOH) thiab oxalic kua qaub (H2C2O4) yog cov piv txwv ntawm tsis muaj zog acids.
Ib tug kuj nug, dab tsi yog 7 lub zog acids thiab bases? Muaj 7 lub zog acids: chloric acid , hydrobromic acid , hydrochloric acid, hydroiodic acid , nitric acid, perchloric acid, thiab sulfuric acid. Ua ib feem ntawm cov npe ntawm cov kua qaub uas muaj zog tsis muaj qhov qhia txog qhov txaus ntshai lossis ua rau cov kua qaub puas.
Yog li ntawd, qhov twg yog qhov tsis muaj zog tshaj plaws acid?
Citric acid
Dab tsi yog cov muaj zog thiab tsis muaj zog acids nrog piv txwv?
Piv txwv ntawm muaj zog acids yog hydrochloric kua qaub (HCl), perchloric kua qaub (HClO4), Nitric kua qaub (HNO3) thiab sulfuric kua qaub (H2YOG4). A qaug zog acid tsuas yog ib feem dissociated, nrog ob qho tib si undissociated kua qaub thiab nws cov khoom dissociation yog tam sim no, nyob rau hauv kev daws, nyob rau hauv equilibrium nrog ib leeg.
Pom zoo:
Dab tsi yog qhov txawv ntawm qhov pom tseeb qhov loj thiab qhov ntsuas qhov ntsuas qhov tseeb?
Dab tsi yog qhov txawv ntawm qhov pom tseeb thiab qhov tseeb? Pom meej qhov loj npaum li cas yog qhov ci ntawm lub hnub qub tshwm los ntawm lub ntiaj teb thiab nyob ntawm qhov ci thiab qhov deb ntawm lub hnub qub. Qhov loj npaum li cas yog qhov ci ntawm lub hnub qub yuav tshwm sim los ntawm tus qauv nyob deb
Dab tsi yog qee qhov haujlwm ntawm nucleic acids?
Lub luag haujlwm ntawm nucleic acids yuav tsum ua nrog kev khaws cia thiab nthuav tawm cov ntaub ntawv ntawm caj ces. Deoxyribonucleic acid (DNA) encodes cov ntaub ntawv uas lub cell xav tau los ua cov proteins. Ib hom nucleic acid, hu ua ribonucleic acid (RNA), tuaj nyob rau hauv ntau hom molecular uas koom nrog cov protein synthesis
Puas muaj zog acid thiab qaug zog hauv paus ua rau tsis muaj?
Raws li koj tau pom hauv kev suav cov pH ntawm cov kev daws teeb meem, tsuas yog ib qho me me ntawm cov kua qaub uas muaj zog heev yog qhov tsim nyog los hloov pH. Ib qho tsis yog tsuas yog sib xyaw ntawm cov kua qaub tsis muaj zog thiab nws lub hauv paus conjugate lossis lub hauv paus tsis muaj zog thiab nws cov conjugate acid. Buffers ua hauj lwm los ntawm reacting nrog ib qho ntxiv acid los yog hauv paus tswj pH
Dab tsi yog qhov txawv ntawm lub zog siv zog thiab lub zog thauj khoom?
Raws li nrog cov dav hlau inclined, cov khoom yuav tsum tau txav mus los yog lub zog muaj zog los yog thauj khoom thiab kev siv zog yog lub zog muab tso rau hauv kev txav mus los ntawm lwm qhov kawg ntawm lub fulcrum
Dab tsi yog qhov txawv ntawm microevolution thiab macroevolution Dab tsi yog qee qhov piv txwv ntawm txhua tus?
Microevolution vs. Macroevolution. Piv txwv ntawm cov kev hloov microevolutionary no yuav suav nrog kev hloov ntawm hom xim lossis loj. Macroevolution, piv txwv li, yog siv los hais txog kev hloov pauv ntawm cov kab mob uas tseem ceeb txaus uas, dhau sijhawm, cov kab mob tshiab yuav raug suav tias yog hom tshiab nkaus xwb