Steel is a mixture of elements but it is mostly iron, and it is also magnetic. The other metal elements are not magnetic. Metals react with oxygen to produce compounds called metal oxides.

"I retiled my entryway hoping that it would make it bright and inviting to anyone who enters yet lack of natural light keeps ...

Like real gold and Fool’s gold. But what if my sample has several different types of elements and compounds all mixed together? Matter can also be classified as a mixture. Mixtures can either be ...

Application of crystallographic screening to these systems requires complex formation before crystallization as well as crystal formation in the presence of the compound mixture and can be ...

Iron is a magnetic element, so it can be separated from a mixture using a magnet. But after the iron and sulfur have been heated, they react to make the compound iron sulfide. You cannot easily ...