HELP PLSS! A person combines 20g of hydrogen gas with some chlorine gas. They find the empirical formula of the product, and it is HCl. If they combine 120g of hydrogen gas with chlorine gas, what will the empirical formula of the product be?
1- HCl
2- Н6СІ
3- H2CI4
4- HCI4
5- Н2СІ
6- HCl2

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