Substance or mixture?

Question

Is there a website where you can type it in and it will give you th answer?

Answer 1

I highly doubt it though it may be possible (can't say it isn't cause I don't know). Google gives nothing. This type of thing is a reference question to a website that tells you or a book. Just have to look it up.

Mixtures contain more than one chemical substance, and they do not have a fixed composition. In principle, they can be separated into the component substances by purely mechanical processes (wikipedia). Substances can be  pure compounds or elements that change between solid, liquid, and gas with temp or pressure changes.

--peace--