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

Pegmatites are igneous rocks in which the individual minerals are very large. typically, the minerals are all light-colored quartz, feldspar and muscovite. if you were given a black and white photograph of a pegmatite in a quarry (where the rock has been blasted and broken), what physical properties could you use to identify those three minerals in this hypothetical photo? describe each mineral and the specific diagnostic properties. be specific.