Cov txheej txheem:
- Yuav ua li cas cov tshuaj raug suav hais tias yog qhov txaus ntshai hauv chav kuaj?
- Puas chemistry labs txaus ntshai?
- Koj puas yuav tsum xa tag nrho cov tshuaj tsis tau siv rau hauv lawv lub thawv qub?
- Vim li cas cov tshuaj lom neeg muaj kev nyab xeeb?
Video: Puas yog tag nrho cov tshuaj nyob rau hauv lub lab suav tias yog txaus ntshai?
2024 Tus sau: Fiona Howard | [email protected]. Kawg hloov kho: 2024-01-10 06:38
Tag nrho cov tshuaj nyob rau hauv lub lab yog yuav suav hais tias txaus ntshai. … Lub chaw kuaj mob tuaj yeem pib tam sim ntawd thaum nkag mus rau hauv chav kuaj txawm tias tus kws qhia tseem tsis tau tuaj.
Yuav ua li cas cov tshuaj raug suav hais tias yog qhov txaus ntshai hauv chav kuaj?
Tshuaj lom neeg siab heev
- Arsenic trioxide.
- Chlorine.
- Hydrogen cyanide.
- Phosgene.
- Potassium cyanide (kev tshuaj ntsuam reagent thiab purified)
- Sodium arsenate (kev tshuaj ntsuam reagent)
- Sodium cyanide (analytical reagent)
Nitrous oxide Ntau
Puas chemistry labs txaus ntshai?
Vim tias txhua tus neeg ua haujlwm hauv chav kuaj tshuaj chemistry paub tias lawv yuav tuav ntau cov tshuaj uas ua rau tib neeg noj qab haus huv. Ntau ntawm cov reagents piv txwv tshwj xeeb tshaj yog cov organic yog carcinogenic. Hos ib txhia kuj lom rau tib neeg.
Koj puas yuav tsum xa tag nrho cov tshuaj tsis tau siv rau hauv lawv lub thawv qub?
Tsis txhob xa cov tshuaj rov qab rau hauv cov thawv qub- Kom tsis txhob muaj tshuaj lom, pov tseg cov tshuaj siv raws li koj tus kws qhia cov lus qhia. TSIS TXHOB xa rov qab cov tshuaj tsis siv tshuaj rau cov fwj tshuaj reagent. Cov hlau & cov organic sib txuas yuav tsum tau muab pov tseg rau hauv cov ntawv ntim pov tseg.
Vim li cas cov tshuaj lom neeg muaj kev nyab xeeb?
Ntau cov kuab tshuaj ntau yog tshuaj lom heev yog tias nqus tau, thiab nqus tau qee yam tshuaj hnyav tuaj yeem ua rau daim nyias nyias ntawm qhov muag, qhov ntswg, caj pas thiab lub ntsws. … Cov neeg ua haujlwm hauv chav kuaj kuj yuav tsum muaj kev nyab xeeb nyob deb thaum muab tshuaj thiab xyuas kom muaj qhov cua zoo hauv chav kuaj.
Pom zoo:
Puas yog tag nrho cov clad ua nyob rau hauv Suav teb?
Kwv yees li 90% ntawm cov khoom nqa tag nrho-Clad hom yog tsim nyob rau hauv Teb Chaws Asmeskas, hauv Pennsylvania. Qhov seem 10% tsis ua nyob rau hauv Teb Chaws Asmeskas, yog ua hauv Suav teb, Fabkis, thiab Ltalis . Puas yog tag nrho-clad ua nyob rau hauv Tuam Tshoj los yog USA?
Puas yog qhov muaj peev xwm muab qhab nia suav tias yog tag nrho lossis tsis muaj?
Cov peev txheej tau qhab nia yog cov kev hloov pauv hauv cov peev txheej membrane uas sib txawv ntawm qhov loj me, tsis yog tag nrho-lossis - tsis muaj . Puas yog qhov muaj peev xwm muab qhab nia suav tias yog tag nrho lossis tsis muaj lus nug?
Qhov twg yog tag nrho lossis tag nrho?
Koj yuav tsum siv tag nrho nrog cov neeg Asmeskas feem ntau, thiab tag nrho nrog cov neeg tuaj saib Askiv feem ntau. … Ib yam li cov nroog no muaj ob npaug L thiab yog Askiv, tag nrho muaj ob npaug L thiab yog Askiv . txhais tau tias tag nrho?
Puas yog cov macromolecules puas tuaj yeem suav tias yog cov tshuaj organic?
Biological macromolecules tag nrho muaj cov pa roj carbon nyob rau hauv lub nplhaib lossis cov saw hlau, uas txhais tau hais tias lawv raug cais raws li cov organic molecules. Lawv feem ntau kuj muaj hydrogen thiab oxygen, nrog rau nitrogen thiab lwm yam me me .
Nyob rau hauv tag nrho cov tshuaj tiv thaiv redox?
Redox cov tshuaj tiv thaiv yog suav nrog ob ntu, txo qis ib nrab thiab ib nrab oxidized, uas ib txwm tshwm sim ua ke. Qhov txo qis ib nrab tau txais hluav taws xob thiab tus lej oxidation oxidation naj npawb Ib qho oxidation-txo (redox) cov tshuaj tiv thaiv yog ib hom tshuaj tiv thaiv uas muaj kev hloov ntawm electrons ntawm ob hom.
