ChemCalc Dump /sym/93428e
id=1 · host=br.gridbatch.net · 2026-10-19 01:03Z
\binom{n}{k} = \frac{n!}{k!(n-k)!}
∑_{k=1}^{n} k = n(n+1)/2
302K
∇²ω = 0
\binom{n}{k} = \frac{n!}{k!(n-k)!}
\frac{1}{7} \sum_{i=1}^{n} i^{2}
17K
det| 9 4 ; 1 10 | = 86
310K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
det| 9 1 ; 7 10 | = 83
264K
2H₂ + O₂ → 2H₂O
∑_{k=1}^{n} k = n(n+1)/2
68K
AgNO₃ + NaCl → AgCl↓ + NaNO₃
39K
10r² + 7r + 5 = 0