Puas yog calcium oxide siv rau kev ntxuav dawb?

Cov txheej txheem:

Puas yog calcium oxide siv rau kev ntxuav dawb?
Puas yog calcium oxide siv rau kev ntxuav dawb?

Video: Puas yog calcium oxide siv rau kev ntxuav dawb?

Video: Puas yog calcium oxide siv rau kev ntxuav dawb?
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Anonim

Teb tiav: Cov tshuaj X uas siv rau kev ntxuav dawb yog Calcium oxide tseem hu ua quicklime lossis burnt txiv qaub lossis txiv qaub. … Calcium oxide reacts heev nrog dej los tsim slaked txiv qaub (calcium hydroxide) tso cua sov ntau.

Yuav siv tshuaj dab tsi los ntxuav dawb?

(1) Cov tshuaj uas siv rau kev ntxuav dawb yog calcium oxide kuj hu ua quicklime nrog cov tshuaj formula CaO.

Puas txiv qaub yog siv los ntxuav dawb?

Whitewash yog kev sib xyaw ntawm hydrated txiv qaub (los yog slaked quicklime), dej thiab lwm yam khoom siv los ua xim zoo li txheej. Lub tshuab ntxuav tais diav ua los ntawm cov txiv qaub slaked ntxiv cov xim ruaj khov, ntev ntev.

Caoh2 siv rau ntxuav hniav dawb?

- Calcium hydroxide yog siv dav hauv kev ntxuav dawb. Thaum calcium hydroxide tuaj rau hauv kev sib cuag nrog cov pa roj carbon dioxide nws tsim calcium carbonate uas ua rau cov phab ntsa ci ntsa iab.

Yuav ua li cas ntxuav cov phab ntsa?

Teb: Slaked txiv qaub yog siv rau ntxuav phab ntsa. Nws muab cov calcium hydroxide rau peb thiab ua kom muaj cua sov ntau. Tom qab siv nws rau ntawm phab ntsa peb tau txais calcium carbonate thiab dej raws li nws hnov mob nrog carbon dioxide nyob rau hauv qhov chaw.

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