Cov txheej txheem:

Nws siv sijhawm ntev npaum li cas rau cov kua qab zib kom tsim tau?
Nws siv sijhawm ntev npaum li cas rau cov kua qab zib kom tsim tau?

Video: Nws siv sijhawm ntev npaum li cas rau cov kua qab zib kom tsim tau?

Video: Nws siv sijhawm ntev npaum li cas rau cov kua qab zib kom tsim tau?
Video: Sib Hawm Dhau (Time Passed) Music Video by: Deeda/Dib Xwb 2024, Kaum ib hlis
Anonim

2 rau 4h

Raws li txoj cai, nws siv sijhawm ntev npaum li cas rau qab zib kom crystallize?

cav 7d

Ib yam li ntawd, dab tsi ua rau qab zib crystals tsim? Super-saturated daws tsis ruaj khov, yog li thaum koj nplawm khoom qab zib, qab zib crystals yuav tawm los ntawm kev daws thiab txuas mus rau txoj hlua los yog lo rau hauv lub thawv. Cov qab zib crystals hu ua precipitates. Raws li cov qab zib nyob rau hauv cov tshuaj precipitates, koj cov khoom qab zib pob zeb yuav loj hlob, molecule bymolecule.

Yuav siv sij hawm ntev npaum li cas crystals loj hlob?

Nws tau kwv yees tias lawv tuaj yeem ua tau loj hlob txog ib lub atomic txheej ib xyoo (ib ob centimeter siv lead ua loj hlob tshaj li kaum lab xyoo). Hauv mines, siv lead ua ua tau loj hlob ceev heev.

Yuav ua li cas ua kom qab zib crystals kauj ruam yog kauj ruam?

Loj hlob qab zib Crystals

  1. Dissolve cov suab thaj nyob rau hauv boiling dej.
  2. Ntxiv ob peb tee ntawm zaub mov xim thiab tsw, yog tias xav tau.
  3. Cia cov tshuaj kom txias me ntsis ua ntej muab tso rau hauv koj lub thawv.
  4. Ncuav cov kua qab zib rau hauv ib lub hub.
  5. Muab lub thawv tso rau qhov chaw nws yuav tsis cuam tshuam.

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