When you boil a pot of water until it all boils off, what is the whitish, dusty residue that remains on the bottom of the pan?

Question

Is it just minerals/other impurities in the water?

In: Chemistry

Answer 1

>Is it just minerals/other impurities in the water?

Yes. Your tap water is going to contain traces of minerals from whatever river or lake or underground aquifer it comes from even after going through something like a town’s water treatment facilities. Actually perfectly pure water is, surprisingly enough, incredibly toxic in a weird way.