6. why is argon used in flimaent lamps?
- stops hot flimaent buring away (non flmabale)
- hhfjjdenejn
- because it provide a inert atmosphere
- its poo
7. Helium is used in airships and party balloons, why?
- has a lower density than air- makes the ballon float
- same density as air so makes it float
- lower density than oxygen which makes it flow
- higher density than air- makes it float
