or log in
A colourless, heavier-than-air gas, an intermediate in the production of nitric acid.
We prepare a special “elephant toothpaste” with some hydrogen peroxide, liquid soap and food...
It is also used as a food additive, limescale and rust remover.
A white, crystalline compound which breaks down when exposed to light.
Sulphur dioxide emission is the main cause of acid rains. It is an intermediate product...
The compound of hydrogen and oxygen. Colourless, odourless liquid; heavier than water.
A compound called sodium azide is responsible for the operation of airbags.
Metals forming hexagonal metallic lattices are rigid and difficult to machine.