colourless gas|Carbon dioxide ,how tall is fik shun

At room temperature carbon dioxide is a colourless and odourless gas close gas One of the three states of matter. Gases, like oxygen or helium, do not have a fixed shape and can expand to...

Nitrogen, nonmetallic element of Group 15 [Va] of the periodic table. It is a colorless, odorless, tasteless gas that is the most plentiful element in Earth’s atmosphere and is a constituent of all living matter. Its atomic number is 7 and it。

Nitrous oxide (dinitrocolourless gasgen oxide or dinitrogen monoxide), commonly known as laughing gas, nitrous, or factitious air, among others, [4] is a chemical compound, an oxide of nitrogen with the formula N 2 O. At room temperature, it is a colourless non-flammable gas, and has a slightly sweet scent and taste. [4]

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