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Can baking powder and vinegar blow up a balloon?

My children have heard somewhere that you can blow up a balloon by mixing baking powder with vinegar. Yes you can! It is a well-known experiment and should be fun to do!

The experiment

ballon before

Balloon is filled with baking powder and the bottle with vinegar

ballon filling

Releasing baking powder into bottle


Balloon starting to be blown up

ballon final

Balloon blown up!

How does it work?

It is CO2, Carbon dioxide! What is blowing up the balloon is this very familiar gas, the one we humans constantly breathe out. First, the CO2 is part of the baking powder. Meeting the vinegar, it is set free. Free as a gas, it needs more space and moves into the balloon and blows it up. Graving for more details? It’s an acid-base-reaction, with vinegar being the acid and baking powder being the base.

Thanks to Tamara and Sami for doing the experiment!

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Hi I'm Ilka, a self-development writer and lovable scientist with a knowledgeable expertise in brain science. I help people realize the power our behavior has on our brain - and the other way around.

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Denise - November 6, 2013 Reply

Wow that looks good! I might give this a go with my daughter.

Irene Waters 19 Writer Memoirist - November 7, 2013 Reply

Can’t wait to try this when my nephews visit at Christmas

Holistic Wayfarer - November 7, 2013 Reply

Will be doing this with my boy.

Holistic Wayfarer - November 7, 2013 Reply

Meant to thank you for the like on my Smarts and S-esteem post. =)

Renata Plant - November 7, 2013 Reply

Finde ich toll und sehr interessant. Besonders gefallen mir die Bilder. Danke Ilka!

simplyilka - November 7, 2013 Reply

Das freut mich ganz besonders, dass es dir gefaellt πŸ™‚

unawarebutunderlined - November 8, 2013 Reply

Great mixture for cleaning almost anything! I do a once a month down the drain cleaning…much better than what’s marketed as such.

simplyilka - November 18, 2013 Reply

Thanks! I am glad you liked it πŸ™‚

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