Vim li cas sodium thiab dej tawg?
Vim li cas sodium thiab dej tawg?

Video: Vim li cas sodium thiab dej tawg?

Video: Vim li cas sodium thiab dej tawg?
Video: tsaus ntuj chim no tseem nco nco koj.nkauj tawm tshiab. 2024, Kaum ib hlis
Anonim

Nws ib zaug ntseeg li ntawd sodium tawg vim yog cov tshuaj alkali hlau tso tawm ntau cov pa roj hydrogen, nrog rau cov cua sov, ua rau cov roj ignite. Tl; DR: Sodium tawg vim nws poob nws valence electron nyob rau hauv dej , thiab thaum txaus atoms ua nws, lawv repel ib leeg ntawm high speeds.

Ib yam li ntawd, yog vim li cas sodium reacts nrog dej?

Sodium reacts nruj nrog dej vim hais tias nws yog ntau ntau active tshaj hydrogen. Yog li ntawd, ib tug redox tshuaj tiv thaiv ntawm H+ thiab Na muab H(2) thiab Na+ muaj zog heev. Lub zog ntau yog tso tawm uas cov roj hydrogen tso tawm tuaj yeem hlawv.

Ib tug kuj yuav nug, yuav ua li cas tshwm sim thaum sodium reacts nrog dej? Sodium hlau reacts sai nrog dej los tsim cov xim tsis muaj xim yooj yim ntawm sodium hydroxide (NaOH) thiab hydrogen gas (H2). Cov tshuaj tiv thaiv txuas ntxiv txawm tias qhov kev daws teeb meem pib. Qhov kev daws teeb meem yog qhov yooj yim vim yog yaj hydroxide. Cov tshuaj tiv thaiv yog exothermic.

Kuj tseem paub, vim li cas sodium txaus ntshai ntub?

( Txaus ntshai thaum ntub ) Sodium yog FLAMMABLE SOLID uas yuav ignite spontaneously nyob rau hauv AIR los yog MOIST AIR thiab reacts hnyav nrog WATER lossis STEAM los tsim cov nplaim hluav taws thiab tawg Hydrogen gas.

Yuav ua li cas yog tias koj ntxiv sodium rau dej?

Sodium (Na) yog cov hlau tsis ruaj khov heev. Nws yuav tsum muab ib qho hluav taws xob kom ruaj khov. Thaum twg ib tug cubic centimeter qhov luaj li cas ntawm sodium yog muab tso rau hauv dej , ib qho tshuaj lom neeg muaj zog heev tshwm sim nyob rau hauv uas sodium hydroxide (NaOH) thiab hydrogen gas yog tsim.

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