ChemCalc Dump /sym/93428e
id=1 · host=br.gridbatch.net · 2026-10-19 01:47Z
\binom{n}{k} = \frac{n!}{k!(n-k)!}
∑_{k=1}^{n} k = n(n+1)/2
312K
∇²ω = 0
∫₀^∞ e^(-t²) dt = √π / 2
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\binom{n}{k} = \frac{n!}{k!(n-k)!}
det| 11 9 ; 5 12 | = 87
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Fe₂O₃ + 3CO → 2Fe + 3CO₂
CH₄ + 2O₂ → CO₂ + 2H₂O
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2H₂ + O₂ → 2H₂O