Cov txheej txheem:
Video: Ib qho piv txwv ntawm ionic compound yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Ionic compounds yog tshuaj sib xyaw suav nrog ions . Ob lub ntsiab lus tshuaj sib xyaw feem ntau yog ionic thaum ib lub caij yog hlau thiab lwm yam yog tsis yog hlau. Piv txwv muaj xws li: sodium chloride: NaCl, nrog Na+ thiab Cl- ions . magnesium oxide: MgO, nrog Mg2+ thiab O2- ions.
Hais txog qhov no, peb piv txwv ntawm ionic compounds yog dab tsi?
Ionic daim ntawv cog lus piv txwv muaj xws li:
- LiF - Lithium Fluoride.
- LiCl - Lithium Chloride.
- LiBr - Lithium Bromide.
- Li-Iodide Lithium Iodide.
- NaF - Sodium Fluoride.
- NaCl - Sodium Chloride.
- NaBr - Sodium Bromide.
- NaI - Sodium Iodide.
Qhov thib ob, dab tsi yog txhais los ntawm ionic compound? Hauv chemistry, ib ionic compound yog tshuaj compound muaj li ntawm ions tuav ua ke los ntawm electrostatic rog termed ionic kev sib raug zoo. Cov compound yog nruab nrab tag nrho, tab sis muaj qhov zoo them ions hu ua cations thiab negatively them ions npe anions.
Ib tug kuj yuav nug, dab tsi yog ionic bond piav nrog piv txwv?
ionic daim ntawv cog lus . ionic daim ntawv cog lus . npe. Lub ntsiab txhais ntawm ionic daim ntawv cog lus yog thaum tus nqi zoo ion forms ib daim ntawv cog lus nrog tus nqi tsis zoo ions thiab ib lub atom hloov electrons mus rau lwm tus. Ib piv txwv ntawm ib ionic daim ntawv cog lus yog tshuaj compound Sodium Chloride.
5 piv txwv ntawm covalent bonds yog dab tsi?
Piv txwv ntawm Covalent Bond:
- Dej. Ib qho piv txwv yog dej. Dej muaj covalent daim ntawv cog lus uas muaj hydrogen thiab oxygen bonding ua ke los ua H2O.
- Pob zeb diamond. Lub pob zeb diamond yog ib qho piv txwv ntawm Giant Covalent daim ntawv cog lus ntawm carbon. Lub pob zeb diamond muaj cov qauv loj heev.
- Vulcanized roj hmab. Lwm qhov piv txwv yog vulcanized roj hmab.
Pom zoo:
Ib qho piv txwv ntawm ib qho alloy yog dab tsi?
Ib qho piv txwv ntawm cov hlau yog sib xyaw ntawm cov hlau thiab hlau. Ib qho piv txwv ntawm cov hlau yog cov tin hauv qhov sib xyaw ntawm tooj liab thiab tin uas ua rau tooj liab. Lub alloy yog ib qho fusion ntawm ob lossis ntau dua hlau lossis cov hlau uas tsis yog hlau. Ib qho piv txwv ntawm cov hlau yog tooj dag, uas yog tsim los ntawm tooj liab thiab zinc
Thaum lub ntim ntawm ib qho piv txwv ntawm cov pa roj yog txo lub siab ntawm cov qauv ntawm cov pa roj?
Kev txo qis Cov pa roj sib xyaw txoj cai hais tias lub siab ntawm cov pa roj yog inversely cuam tshuam nrog lub ntim thiab ncaj qha ntsig txog qhov kub thiab txias. Yog tias qhov kub thiab txias yog nyob tas li, qhov sib npaug raug txo rau Boyle txoj cai. Yog li ntawd, yog tias koj txo qhov siab ntawm cov roj av tas li, nws qhov ntim yuav nce ntxiv
Dab tsi yog qhov flux los ntawm lub voos xwmfab ntawm sab yog tias tus nqi ntawm Q yog ntawm ib qho ntawm nws lub ces kaum?
Raws li peb paub tias, tag nrho cov flux los ntawm tus nqi q yog q / ε 0 (Gauss txoj cai). Yog hais tias tus nqi yog nyob rau ntawm lub ces kaum ntawm lub voos xwmfab, ib co ntawm cov flux nkag mus rau hauv lub voos xwmfab thiab tawm los ntawm ib co ntawm nws lub ntsej muag. Tab sis qee qhov flux tsis nkag mus rau hauv lub voos xwmfab. Qhov 1/8th no yuav muab faib ua 3 ntu dua
Dab tsi yog txhais los ntawm lub sij hawm dissociation thiab dab tsi yog ib qho piv txwv ntawm cov khoom uas dissociates?
Dissociation, nyob rau hauv chemistry, sib cais ntawm ib yam khoom mus rau hauv atoms los yog ions. Thermal dissociation tshwm sim ntawm qhov kub thiab txias. Piv txwv li, hydrogen molecules (H 2) dissociate rau hauv atoms (H) ntawm kub heev; ntawm 5,000 ° K txog 95% ntawm cov molecules hauv cov qauv ntawm hydrogen yog dissociated rau hauv atoms
Dab tsi yog qhov txawv ntawm instantaneous thiab nruab nrab ceev dab tsi yog qhov piv txwv loj tshaj ntawm kev ceev ceev?
Qhov nruab nrab ceev yog qhov ceev nruab nrab ntawm lub sijhawm. Instantaneous ceev yuav yog qhov ceev txhua qhov muab tam sim ntawd hauv lub sijhawm ntawd, ntsuas nrog lub ntsuas ntsuas lub sijhawm