HTML has a number of special characters that are useful for discussing chemistry. They can be inserted into a Science Madness post simply by typing
the relevant ampersand (& code.
° inserts a degree symbol: °
(e.g. 1500 °C)
µ inserts a micro symbol: µ
(e.g. 300 µg)
± inserts a plus/minus sign: ±
(e.g. 66 ± 9)
½ inserts a one half sign: ½
(e.g. H<sub>2</sub> + ½O<sub>2</sub> → H<sub>2</sub>O)
(Similarly &frac14; and &frac34; insert the symbols ¼ and ¾ respectively.)
Finally, &amp; inserts the ampersand sign, regardless of the characters that follow it. (This was used in this post to display the codes
without the HTML interpreter replacing them with the corresponding characters.)
![[*]](images/xpblue/default_icon.gif){kind=icon}
code.
