- Code: Select all
`[tex]\text 2H_2O \longrightarrow[50]\limits^{elect.} 2H_2 + O_2 [/tex]`

renders as:

You can also add \text at the beginning so it would read out the spaces, Hence:

- Code: Select all
`[tex]\text 2H_2O \longrightarrow[50]\limits^{elect.} 2H_2 + O_2 [/tex]`

reads out as

Some more examples:

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1: [tex]A + B \rightleftharpoons C + B[/tex]

2: [tex]\text A + B \rightleftharpoons C + B[/tex]

3: [tex]\text A + B \longrightarrow^{heat} C + D[/tex]

4: [tex]\text A + B \longrightarrow[50]^{X + Y} C + D[/tex]

5: [tex]\text A + B \longrightarrow[100]^{X + Y} C + D[/tex]

6: [tex]\text 2X_2Y_3 + Z_3^+ \longrightarrow W_3^- + 4U^{2+}[/tex]

1:

2:

3:

4:

5:

6:

If you dont include "\text" at the beginning, the text comes out italicized.

Full manual for the script can be found here.