Posted by **Christina** on Saturday, November 10, 2012 at 8:59am.

Each of 2 front tires in the car is filled with a different gas. One tire contains 116 g of helium, another tire has 160 g of unknown gas. How many times heavier is a molecule of the unknown gas than an atom of helium?

- Chemistry -
**Lyssy**, Tuesday, November 22, 2016 at 10:21am
I have no idea

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