Empirical evidence for H2O2(l)+Cu2+(aq)→Cu(s)+O2(g)+2... ?

Empirical Evidence

1.) gas produced that will relight a glowing splint
2.) gas produced that will cause a lit splint to "pop"
3.) increase in pH
4.) decrease in pH
5.) solid metal is produced
6.) solid metal reacts
7.) blue colour fades
8.) blue colour forms
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