Part 1: name the type of chemical reaction that occurs when aluminum (al) reacts with copper nitrate (cu(no3)2).
part 2: explain why aluminum does not react with potassium nitrate (kno3) although it reacts with copper nitrate.

Part 1: Single displacement or redox

Part 2: Al is above Cu but below K in the activity series

Explanation:

Part 1

2Al + 3Cu(NO₃)₂ ⟶ 3Cu + 2Al(NO₃)₃

(a) You could call this a single displacement reaction, because aluminium is displacing copper from its salt.

(b) You could also call this a reduction-oxidation reaction, because Al is oxidized to Al³⁺ and Cu²⁺ is reduced to Cu.

Part 2

Al reacts with Cu(NO₃)₂ because Al is above Cu in the activity series.

Al does not react with KNO₃ because Al is below K in the activity series.