If it has a positive charge it is a cation if negative it is an anion .
I attached a chart that will help you know the charges of the elements
Answer:
Carbon dioxide
Explanation:
not sure if this answers your question
Beaker 3 shows a clear chemical reaction.
If the glowing splint bursts into flames during the decomposition of H2O2, it will indicate at gas which will be produced. And that gas that is produced because of the glowing splint bursts is the type of gas called oxygen.