Tshuaj Ntsuam Kev Sib Xws

Dab tsi yog qhov kwv yees tshuaj lom neeg?

Kev Xam Xaj Tshuaj yog ib hom kev piav qhia txog kev hloov tshuaj uas lub npe ntawm txhua qhov khoom siv tshuaj yuav raug hloov los ntawm lawv cov cim qhia tshuaj.

Hauv Kev Siv Tshuaj Lom Zem, cov xub taw qhia yog sawv cev ntawm qhov kev coj ua tshuaj tiv thaiv. Rau cov kev tawm tsam ib-txoj kev tshua, peb yuav qhia los ntawm tus taw ntawm sab laug rau sab xis. Yog li cov tshuaj ntawm sab laug yuav koom nrog, thiab ib qho nyob sab xis yuav yog qhov khoom.

Dab tsi yog qhov khoom hauv chemistry?

Saib xyuas, txhua yam pom, suav nrog peb tus kheej lub cev, yog khoom. Muaj cov khoom ntuj tsim xws li tsiaj, nroj tsuag, dej ntws, av ... yog khoom tsim.

Cov khoom ntuj tsim muaj ntau yam khoom sib txawv. Thiab khoom cuav yog tsim los ntawm cov khoom siv. Txhua cov khoom siv yog khoom sib xyaw lossis qee qhov sib xyaw. Piv txwv li: Aluminium, plastics, glass, ...

Dab tsi yog lawv lub zog?

Txhua yam khoom muaj qee yam khoom: lub xeev lossis daim ntawv (cov khoom ua kua, roj, roj) xim, tsw thiab saj. Muab xam los yog insoluble hauv dej ... Melting point, kub taw tes, lub nqus dej tshwj xeeb, hluav taws xob conductivity, thiab lwm yam.

Thiab muaj peev xwm hloov pauv mus rau lwm yam tshuaj, piv txwv li, lub peev xwm los decompose, khiav ... yog cov cuab yeej tshuaj lom neeg.

Dab tsi yog atom?

Txhua qhov tshuaj yog tsim los ntawm cov khoom me me, hluav taws xob nruab nrab hu ua atoms. Muaj ntau kaum tawm lab tus sib txawv ntawm cov tshuaj sib txawv, tab sis tsuas yog ntau tshaj 100 hom atoms.

Lub atom muaj qhov zoo ntawm cov roj ntsha muaj nuj nqi thiab lub plhaub ua los ntawm ib lossis ntau qhov tsis zoo raug them cov hluav taws xob

Xav nrhiav kev sib npaug offline, sim peb lub mobile app

Tshawb hauv koj lub Android lossis Iphone App Khw rau Kev Tshuaj Ntsuam Kom Raug Ncaj Ncees app nrog lub logo no

Rhuav Tshaj Xov Xwm

Cov Lus Qhia Tshwj Xeeb Tsuas yog Tsawg Tus Neeg Paub

Kev sib txuas ua ke

Kuj paub zoo li cov tshuaj tiv thaiv hluavtaws. Ib hom kev nquag tshwm sim sib xyaw ua ke yog cov tshuaj tiv thaiv ntawm cov khoom nrog oxygen los ua ib qho oxide. Nyob rau qee qhov xwm txheej, cov hlau thiab cov tsis sib haum puav leej muaj lub cev nrog oxygen. Thaum zes hluav taws, magnesium hnov ​​mob sai thiab nrawm, cuam tshuam nrog oxygen los ntawm huab cua los tsim cov nplua zoo magnesium oxide hmoov.

BaO + H₂O => Ba (OH)₂ (NH₂)₂CO + H₂O => (NH₄)₂CO₃ Fe + 2Fe (TSIS MUAJ₃)₃ => 3Fe (TSIS MUAJ₃)₂ BaO + P₂O₅ => Ba₃(PO₄)₂ O₂ + Se => SO₂ Cl₂ + H₂ => 2HCl C₆H₅OH + 4O₂ => 3H₂O + 6CO₂ Saib Tag Nrho Kev Sib Tham Ua Ke

Kev txiav txim siab lwj

Ntau qhov kev txiav txim siab cuam tshuam nrog kub, taws, lossis hluav taws xob rau lub zog. Binary compounds yog cov sib txuas uas muaj tsuas yog ob lub ntsiab lus. Qhov yooj yim tshaj plaws ntawm cov tshuaj tiv thaiv kom decomposition yog thaum binary compound sib txuas zom zaws nws cov ntsiab lus. Mercury (II) oxide, ib qho xim liab, ua rau lub cev tsim cov mercury thiab cov pa oxygen thaum ua kom sov. Tsis tas li, ib qho tshuaj tiv thaiv yog suav tias yog kev tiv thaiv kom tsis haum txawm hais tias ib lossis ntau qhov khoom lag luam tseem yog qhov sib txuas. Cov hlau carbonate sib tsoo ua rau cov hlau oxide thiab carbon dioxide roj. Calcium carbonate piv txwv decomposes rau hauv calcium oxide thiab carbon dioxide.

2Al (OH)₃ => Al₂O₃ + 3H₂O CH₄ => C + 2H₂ C₂H₅Cl => C₂H₄ + HCl 2HgO => 2Hg + O₂ C₄H₁₀ => CH₃CH = CHCH₃ + H₂ 2CH₄ => C₂H₂ + 2H₂ CaCl₂ => Ca + Cl₂ Saib Txhua yam kev txiav txim siab tsis zoo

Oxidation-txo cov tshuaj tiv thaiv

Kev txo lub zog oxidation-txo (redox) yog ib hom tshuaj lom neeg uas muaj kev hloov hluav taws xob ntawm ob hom. Qhov oxidation-txo cov tshuaj tiv thaiv yog qhov tshuaj tshwm sim hauv cov oxidation naj npawb ntawm cov qauv, atom, lossis ion pauv los ntawm nce los yog poob rau hauv ib qho hluav taws xob. Cov kev rov ua paug Redox yog ib qho thiab tseem ceeb heev rau qee qhov ntawm cov haujlwm ntawm lub neej, suav nrog photosynthesis, kev ua pa, kev tawm tsam, thiab xeb lossis xeb.

3HClO => 3HCl + HClO₃ 2HClO₄ => H₂O + Cl₂O₇ 5C + 2CaO => 2CaC₂ + CO₂ Fe + 2Fe (TSIS MUAJ₃)₃ => 3Fe (TSIS MUAJ₃)₂ 2Al + 3FeSO₄ => Al₂(LI₄)₃ + 3Fe 5HNO₃ + P => H₂O + 5NO₂ + H₃PO₄ 4FeCO₃ + O₂ => 2Fe₂O₃ + 4CO₂ Saib Tag nrho Oxidation-txo cov tshuaj tiv thaiv

Ib leeg hloov pauv

A + BC → AC + B Element A yog hlau nyob rau hauv cov tshuaj tiv thaiv no feem ntau thiab hloov cov khoom B, hlau ua nyob rau hauv cov khoom sib txuas ua ke. Yog tias lub hloov hloov pauv tsis yog hlau, nws yuav tsum hloov lwm yam tsis yog hlau nyob hauv cov khoom sib txuas, thiab nws dhau los ua qhov sib npaug. Ntau cov hlau cuam tshuam tau yooj yim nrog cov kua qaub, thiab ib qho ntawm cov khoom siv tshuaj tiv thaiv thaum lawv ua yog hydrogen roj. Zinc reacts rau aqueous zinc chloride thiab hydrogen nrog hydrochloride acid (saib daim duab hauv qab).

H₂O + Mg => H₂ + MgO CH₄ + 2T₂ => C + 4HCl Fe + CuSO₄ => Cu + FeSO₄ Cl₂ + C₆H₅CH₃ => HCl + C₆H₅CH₂Cl Ag₂O + C₂H₂ => H₂O + C₂Ag₂ 2Mg + SiO₂ => Si + 2MgO C₂H₂ + 2Na => H₂ + Na₂C₂ Saib Tag nrho Tib-hloov cov tshuaj tiv thaiv

Muab ob npaug rau hloov pauv

AB + CD → AD + CB A thiab C yog cov ntawv sau nqi raug them zoo hauv cov tshuaj tiv thaiv no, thaum B thiab D yog qhov kev tiv thaiv tsis zoo. Kev hloov pauv ob leeg feem ntau tshwm sim hauv kev daws teeb meem ntawm cov sib txuas. Ua rau muaj kev fab tshuaj, ib qho ntawm cov khoom lag luam feem ntau yog cov khoom siv dej nag lossis roj, lossis roj, lossis cov sib tov molecular zoo li dej. Ib cov ntawv npliag nyob rau hauv ob-hloov kev hloov pauv thaum cov cations los ntawm ib qho reactant sib txuas los ua cov insoluble ionic compound nrog cov anions los ntawm lwm cov reactant. Cov tshuaj tiv thaiv hauv qab no tshwm sim thaum kev daws teeb meem ntau ntawm cov tshuaj potassium iodide thiab lead (II) nitrate tau sib xyaw.

Na₂HPO₄ + NaOH => H₂O + Na₃PO₄ H₂S + KOH => H₂O + KSH 3KOH + Fe (TSIS MUAJ)₃)₃ => 3KNO₃ + Fe (OH)₃ 6CaF₂ + H₂SO₄ + 7SO₃ + Na₂B₄O₇ => Na₂SO₄ + 6CaSO₄ + 4BF₃ Mg (HCO₃)₂ + 2NaHSO₄ => 2H₂O + Na₂SO₄ + 2CO₂ + MgSO₄ H₂SO₄ + Na₂SiO₃ => Na₂SO₄ + H₂SiO₃ 4H₂SO₄ + Ba (AlO₂)₂ => Al₂(LI₄)₃ + 4H₂O + BaSO₄ Saib Tag nrho Ob-hloov cov tshuaj tiv thaiv

Saib Peb Lub Suab Sib Piv Dictionaru Lub Vev Xaib Ua Lus Sib Xws

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Peb Cov Neeg Txhawb Nqa

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Rhuav Tshaj Xov Xwm

Cov Lus Qhia Tshwj Xeeb Tsuas yog Tsawg Tus Neeg Paub