Preparation of Liquid Oxygen using liquid nitrogen
Paramagnetic Liquid O2-Liquid oxygen is paramagnetic and attracting to the magnet.
Burning a diamond
Iron burning in atmosphere of pure oxygen
A nonmetal, colorless gas. Oxygen is the most abundant
chemical element, by mass, in our biosphere, air, sea and land. Oxygen
is the third most abundant chemical element in the universe, after
hydrogen and helium. There are two allotropes, O2(oxygen) AND O3 (ozone).
They are both reactive, however ozone is much more
reactive. It decompose when exposed to UV light. That is how the ozone
layer protects us.
Liquid Oxygen is blue
Cigarette placed for few seconds inside the dewar with the liquid
oxygen and lighted up.
(S8 - octatomic) is a brittle nonmetal. At room temperature,
sulfur is a soft, bright-yellow solid with only a faint odor, similar to
that of matches (the strong "smell of sulfur" usually refers to the odor
of hydrogen sulfide (H2S)
Its commercial uses are primarily in fertilizers, but it is also widely
used in black gunpowder, matches, insecticides and fungicides.