Aici, + nanacl + al
did al change oxidation number?
yes
no

Yes, Al change oxidation number

Explanation:

For a free element, oxidation number is 0.

Na and Al are free elements we find in the equation as they are not in combination with other elements.

For a compound, the sum of oxidation number of elements = 0.

We know oxidation number of chlorine is -1.

So let us find the oxidation number of Al in

Let x be the oxidation number of Al so,

Oxidation number of Al in  is +3

Oxidation number of Al  changes from +3 to 0.

Decrease in oxidation number indicates is getting reduced in the reaction.

Na oxidation number increases from 0 to +1 shows Na is getting oxidised in the reaction  

The change in oxidation number of the elements represents a redox reaction where both oxidation and reduction takes place simultaneously.

african americans demonstrated their newly found freedom by relocating often in search of relatives whom they had been separated from during slavery. others established schools to educate freed people and they built institutions such as churches and political organizations to advocate for their rights.

jjj89t'ji; it hink the answer is your mom is not si