Eli5: What is chemical equilibrium?

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My nephew loves asking me science things, mostly because I always find a fun analogy to explain. Today I was explaining from where comes the gas of soda and I bumped with the concept of chemical equilibrium and he asked about that. Now I’m trying to find a creative analogy to explain chemical equilibrium to him the next time we meet.

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Anonymous 0 Comments

If it was me I’d buy some cheap food coloring and make 8oz of blue water and 8oz of yellow water. Tell the kid some spiel along the lines of you have chemical A(blue) and chemical B(yellow). Pour them together in a clear vessel. As they mix that’s the chemical reaction. As they turn into green that’s equilibrium. Just a thought of the top of my head.
Oh plus throw in a “blue isn’t happy alone and neither is yellow… but together they make green and everyone is happy” type analogy.

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