ChemCalc Dump /sym/93428e
id=1 · host=br.gridbatch.net · 2026-10-19 01:06Z
\binom{n}{k} = \frac{n!}{k!(n-k)!}
∇²ω = 0
\frac{2}{2} \sum_{i=1}^{n} i^{2}
125K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
det| 9 4 ; 1 10 | = 86
310K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
311K
∑_{k=1}^{n} k = n(n+1)/2
264K
2H₂ + O₂ → 2H₂O
det| 6 6 ; 3 7 | = 24
68K