Cov tshuaj tiv thaiv ntawm baking soda thiab dej sib xyaw ua ke yog dab tsi?
Cov tshuaj tiv thaiv ntawm baking soda thiab dej sib xyaw ua ke yog dab tsi?

Video: Cov tshuaj tiv thaiv ntawm baking soda thiab dej sib xyaw ua ke yog dab tsi?

Video: Cov tshuaj tiv thaiv ntawm baking soda thiab dej sib xyaw ua ke yog dab tsi?
Video: Adding painted texture with baking soda 2024, Lub peb hlis ntuj
Anonim

Thaum ci dej qab zib los yog sodium Bicarbonate (NaHCo3) reacts nrog dej carbonic acid yog tsim. Cov tshuaj tiv thaiv yog exothermic uas yog cua sov thiab Carbonic acid yog tsim. Carbonic acid tsis ruaj tsis khov yog li tawg mus rau hauv carbon dioxide (dej qab zib) thiab dej.

Hauv qhov no, ua li cas thaum dej thiab baking soda sib xyaw?

Cov dej uas muaj ci dej qab zib tsis npuas vim nws yog alkali, tshuaj tiv thaiv ntawm anacid. Thaum alkali sib xyaw nrog cov kua qaub, nws tsim carbondioxide. Thaum koj ntxiv ci hmoov rau dej los yog mis nyuj, cov alkali thiab cov kua qaub react nrog ib leeg thiab tsim carbondioxide - cov npuas.

Tom qab, lo lus nug yog, dab tsi yog cov tshuaj tiv thaiv ntawm baking soda thiab vinegar? Thaum twg vinegar thiab ci dej qab zib yog firstmixed ua ke, hydrogen ions nyob rau hauv lub vinegar teb nrog thesodium thiab bicarbonate ions hauv ci dej qab zib . Qhov tshwm sim ntawm qhov pib tshuaj tiv thaiv yog ob qho tshiab tshuaj : carbonic acid thiab sodium acetate. Qhov thib ob tshuaj tiv thaiv yog adecomposition tshuaj tiv thaiv.

Ib yam li ntawd, tib neeg nug, yog baking soda thiab dej yog tshuaj lom neeg?

Baking soda ntxiv rau dej nce qhov kub thiab txias me ntsis. Tshuaj tiv thaiv yog endothermic los yog exothermic. Baking soda yog NaHCO3thiab dej yog H2O. Ntxiv ua ke koj tau txais NaOH thiab H2CO3 uas yog sodium hydroxide thiab carbonicacid.

Yuav ua li cas rau baking soda?

Thaum koj mix ci dej qab zib Cov khoom xyaw acidic, thiab cov kua ua ke, koj yuav tau txais cov pa roj carbon dioxide npuas. ci dej qab zib (ib base) reacts nrog cov kua qaub kom muab cov pa roj carbon dioxide rau koj, dej, thiab ntsev.

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