ChemCalc Dump /sym/93428e
id=1 · host=br.gridbatch.net · 2026-10-19 01:53Z
\binom{n}{k} = \frac{n!}{k!(n-k)!}
∫₀^∞ e^(-θ²) dθ = √π / 2
302K
∇²ω = 0
\binom{n}{k} = \frac{n!}{k!(n-k)!}
Fe₂O₃ + 3CO → 2Fe + 3CO₂
∑_{k=1}^{n} k = n(n+1)/2
311K
2H₂ + O₂ → 2H₂O