ChemCalc Dump /sym/93428e
id=1 · host=br.gridbatch.net · 2026-10-19 01:07Z
\binom{n}{k} = \frac{n!}{k!(n-k)!}
∇²ω = 0
\frac{6}{7} \sum_{i=1}^{n} i^{2}
91K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
Fe₂O₃ + 3CO → 2Fe + 3CO₂
\frac{2}{2} \sum_{i=1}^{n} i^{2}
264K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
39K