What substance, being in a gaseous state, is colorless, and in a solid and liquid state it is colored blue?
| January 30, 2021 | education
This substance is oxygen.
Oxygen is a reactive non-metal and is the lightest element of the chalcogen group. A simple substance oxygen under normal conditions is a colorless, tasteless and odorless gas, the molecule of which consists of two oxygen atoms (the formula O2), and therefore it is also called dioxygen. Liquid oxygen is light blue in color, while solid oxygen is a light blue crystal.
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