Sofia0260 Posted January 7, 2019 Share Posted January 7, 2019 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 ? Link to comment Share on other sites More sharing options...
Sensei Posted January 7, 2019 Share Posted January 7, 2019 (edited) - reactants should be in the right proportions - reactants should be shredded to tiny powder and carefully mixed together Edited January 7, 2019 by Sensei Link to comment Share on other sites More sharing options...
Sofia0260 Posted January 7, 2019 Author Share Posted January 7, 2019 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. Link to comment Share on other sites More sharing options...
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