KnowHow team explains: Flame colour is produced from the movement of electrons in the metal ions present in the burning material. When you heat the material, the electrons gain energy and jump to a ...

Gas stovetops are often preferred by professionals and home chefs alike, but there's one important thing you need to check for so you're cooking safely.

A CORRESPONDENT to your last number has troubled himself to propound an elaborate theory, to account for the blue tinge which he states is always exhibited by the flame of hydrogen. There are also ...

Cations can be identified with flame tests or precipitate tests using sodium hydroxide and ammonia solutions. Anions (halide, sulfate, and carbonate ions) can be identified using precipitate tests or ...