Chemistry
Chemistry, 18.10.2019 05:30, janeou17xn

Earth's atmosphere is composed mostly of nitrogen and oxygen. in order to float, a ballon has to be filled with something that is lighter than air. use the information on the periodic table too find out which elements might be suitable for making a ballon float. explain your choice or choices.

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Earth's atmosphere is composed mostly of nitrogen and oxygen. in order to float, a ballon has to be...

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