Ushtrimi 2 | Kontrolli i kapitullit 1 | Kimia 10-11: Pjesa II | Zgjidhje Ushtrimesh

Mësimi

Ushtrimi

Pyetja

a) Cili nga këto reaksione është redoks? Shpjegoni pse.

$\text{2Mg}_{\text{(ng)}}$ $+$ $\text{CO}_{2\text{(g)}}$ $\rarr$ $\text{2MgO}_{\text{(ng)}}$ $+$ $\text{C}_{\text{(ng)}}$
$\text{SiO}_{2\text{(ng)}}$ $+$ $\text{C}_{\text{(ng)}}$ $\rarr$ $\text{Si}_{\text{(ng)}}$ $+$ $\text{CO}_{2\text{(g)}}$
$\text{NaOH}_{\text{(uj)}}$ $+$ $\text{HCl}_{\text{(uj)}}$ $\rarr$ $\text{NaCl}_{\text{(uj)}}$ $+$ $\text{H}_{2}\text{O}_{\text{(l)}}$
$\text{Fe}_{\text{(ng)}}$ $+$ $\text{CuO}_{\text{(ng)}}$ $\rarr$ $\text{FeO}_{\text{(ng)}}$ $+$ $\text{Cu}_{\text{(ng)}}$
$\text{C}_{\text{(ng)}}$ $+$ $\text{PbO}_{\text{(ng)}}$ $\rarr$ $\text{CO}_{\text{(g)}}$ $+$ $\text{Pb}_{\text{(ng)}}$

b) Për secilin reaksion redoks tregoni:

Dëshiron të mësosh me video?

Zgjidhja

Alternativa a):

Alternativa b):

Substancat që oksidohen: (reaksioni A $\text{Mg}$ ), (reaksioni B $\text{C}$ ), (reaksioni D $\text{Fe}$ ), (reaksioni E $\text{C}$ )
Substancat që reduktohen: (reaksioni A $\text{CO}_{2}$ ), (reaksioni B $\text{SiO}_{2}$ ), (reaksioni D $\text{CuO}$ ), (reaksioni E $\text{PbO}$ )