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Why do my reactions appear to fail ?

Sofia0260
in Inorganic Chemistry

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Hello,

I am very frustrated I can’t manage to obtain the following reactions:

(1) Combustion of sugar + NaHCO3 ( i.e. black snake or pharaoh’s snake ). No towering of ash is formed at all

(2) NaOH + Al3+ H2O. The captured gas in the balloon does not make the balloon float.

They are intended for a demonstration at a children’s ‘party’ / seminar. They are 8 years old.

Please can anyone help ?

 

 

- reactants should be in the right proportions

- reactants should be shredded to tiny powder and carefully mixed together

 

Edited by Sensei

  • Author

Hello Sensei !

thank you for your quick response !

i just worked out the problem with secon reaction of the balloon as I realised I was capturing fumes as well as H2 !

 Yeyyy !

 

Bubbly combustion of sugar still an issue. I put 4 parts icing sugar , 1 part HCO3 

could it be because I do it in soil instead of sand ???

I use methylated spirit as fuel.

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