a chemist burns 100.0 g of chromium in excess oxygen. there's only one product, and it has a mass of 192.31 g. what is the empirical formula of the product?

This question is about electrolysis. metal spoons can be coated with silver. this is called electroplating. suggest one reason why spoons are electroplated?

If the density of water is 1.0 g/cm3, which of these materials would float in water, based on their densities? check all that apply. aluminum cork iron lead wax

How many miles of water are produced if 5.43 mol pbo2 are consumed