Balloon bomb
When aluminium reacts with NaOH or caustic soda it reacts vigorously and emits heat and hydrogen gas. If this gas is filled in balloon and lit up then it explodes with a high sound as hydrogen is very flammable. When balloon bursts the hydrogen gas inside it rushed out to reacts with oxygen. This reaction is exothermic which enots heat and burst with sound. #education #science #physics #ytshorts @CONCEPTUALGURUJI