Chemical Reaction?

Question

I got a Twizler and bit off the two ends to make a straw, then put it in my cola and drank through the twizler like a straw. After about 5 seconds, the pop fizzed up and began to overflowuntil I took the Twizler out. Then it calmed down. I put the Twizler back in, but I drank enough out to keep it from overflowing, but it still fizzed. what caused this?

Answer 1

Could be that the sugar particles supplied a huge number of nucleating sites to help the CO2 escape from solution. If you watch a glass of coke, bubbles will continuously rise off the sides from isolated nucleating sites in the glass. These are basically little pockets of air clinging to tiny imperfections in the glass, which provide a vapor/liquid interface for CO2 to escape. The sugar particles provide lots of these sites, speeding up the process by which the coke goes flat.

Answer 2

I would guess, though I don't know for sure, that the sugar in the Twizzler began to dissolve in the water in the pop and forced some of the CO2 gas out of suspension causing it to overflow.