This film discusses the halogens, specifically chlorine, bromine, and iodine, detailing their preparation from naturally occurring salts and their chemical properties. The film demonstrates various ...

Sodium and chlorine react vigorously when heated, giving an orange flame and clouds of white sodium chloride.

Group 1 - the alkali metals - Edexcel Group 0 - the noble gases - Edexcel Sample exam questions - groups in the periodic table - Edexcel ...

With increasing number of vehicles with LED lights, 100/90W Halogens are nowhere competent these days. I tried fitting a LED ...