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Sagot :
They move toward each other.
Because, when You blow through the small space between the balloons the pressure in the gap will be decreased between the balloons. so, the balloons forced to move towards each other.
write the properties of Helium?
1. Helium is the element which you can discover on the upper right side of the periodic table with atomic number 2.
2. It comes to begin with among the family of noble gases.
3. it derived from the Greek word “Helios” meaning Sun.
4. Helium falls beneath ideal gas since its furthest electron orbital is full of two electrons.
5. Helium has low boiling point, low density, low solubility, high thermal conductivity and inertness. Since it is less dense, it is considered suitable for filling balloons.
To learn more about Helium , visit;
https://brainly.com/question/16533564
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