ChemCalc Dump /sym/93428e
id=1 · host=br.gridbatch.net · 2026-10-19 01:06Z
\binom{n}{k} = \frac{n!}{k!(n-k)!}
\frac{2}{2} \sum_{i=1}^{n} i^{2}
302K
∇²ω = 0
det| 2 7 ; 7 3 | = -43
91K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
Fe₂O₃ + 3CO → 2Fe + 3CO₂
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
311K
2H₂ + O₂ → 2H₂O
∫₀^∞ e^(-ψ²) dψ = √π / 2
39K
10r² + 7r + 5 = 0
e^{i\pi} + 1 = 0