ChemCalc Dump /sym/93428e
id=1 · host=br.gridbatch.net · 2026-10-19 01:05Z
\binom{n}{k} = \frac{n!}{k!(n-k)!}
∑_{k=1}^{n} k = n(n+1)/2
312K
∇²ω = 0
det| 7 4 ; 4 8 | = 40
91K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
∑_{k=1}^{n} k = n(n+1)/2
17K
\frac{1}{7} \sum_{i=1}^{n} i^{2}
310K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
2H₂ + O₂ → 2H₂O
10r² + 7r + 5 = 0
det| 9 8 ; 3 10 | = 66
364K
C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂
6K
AgNO₃ + NaCl → AgCl↓ + NaNO₃