[pablgonz]

Readings inside chemical formulas follow Spanish school material (SEP México, EcuRed) and the ONCE braille chemistry code (B 6-1, Signografía braille para química lineal). Only Spanish files are touched.

input	before	after
2H₂ + O₂ → 2H₂O	reacciona para formar (Terse: forma)	produce (Terse: da)
CO₂↑	flecha arriba	desprendimiento gaseoso
CaCO₃↓	flecha abajo	precipitado
CaCO₃ →(Δ) CaO + CO₂	reacciona para formar con delta encima	produce con calor
N₂ + 3H₂ ⇄ 2NH₃	flecha hacia la derecha por encima de flecha hacia la izquierda	está en equilibrio con
CH₂=CH₂	doble enlace	enlace doble
Na₂SO₄·5H₂O	por	punto

• The changes apply only inside chemistry (MathCAT already marks these operators as chemical); outside it ↑ is still "flecha arriba" and · is still "por".
• Also fixes ⧸ (U+29F8), which was translated as "sólido grande" instead of "barra oblicua grande".
• Tests: updated expectations in tests/Languages/es/chemistry.rs and a new test for these cases. cargo test passes.

The state "(ac)" (Spanish for aqueous) needs a change in src/chemistry.rs; see #971 .

[github-actions]

Linux library size: 0.59 MiB (0.00%)

Revision	Release liblibmathcat.so
Base (598020b)	0.59 MiB (618,920 bytes)
PR (f2a5b83)	0.59 MiB (618,920 bytes)
Change	0 bytes (0.00%)

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