Determine the empirical formula of a compound used to make Energizer batteries. It contains 47.9% zinc and 52.1% chlorine by mass.

What is the equilibrium constant of aa+bb=cc+dd

Agas diffuses 1/7 times faster than hydrogen gas (h2). what is the molar mass of the gas? 100.10 g/mol 98.78 g/mol 86.68 g/mol 79.98 g/mol

There is one girl i like and i don't know how to tell her that, i have a feeling she knows but if she doesn't i don't want to make a fool out of myself how is one way to boost my confidence on asking her out