Save guides, add subjects and pick up where you left off with your BBC account. Melting and freezing are both physical changes, which are often easy to reverse. To reverse this process, the water ...

Symbol equations are a quick way of representing chemical reactions. They show us what atoms are involved and how they are bonded together. Symbol equations always take the form, reactants → products.

Chem4Word is a Chemistry Add-in for Word, from Microsoft Research. This add-in is a tool for writing and rendering semantically rich chemistry information in Microsoft Word documents. This project is ...

Wrestling with Word’s equation editor can be frustrating, but it doesn’t have to be. A few simple tricks can make typing and formatting math equations a breeze—no more clunky menus or endless ...