Σ index Rxn set 8 Ledger /9 Σ#24 Ledger /3 Ledger /15 Σ#12 Matrix 11 Batch 22 Eq pack 19 Matrix 17 Eq pack 13 Batch 16 Ledger /27 Eq pack 7

Symbolic Index /sym/ea4bfa

id=1 · host=au.commstar.world · 2026-10-20 14:54Z

∑_{k=1}^{n} k = n(n+1)/2

F = G m₁m₂ / r²

244K

N₂ + 3H₂ ⇌ 2NH₃

52K

det| 12 5 ; 4 13 | = 136

3ω² + 2ω + 2 = 0

90K

∑_{k=1}^{n} k = n(n+1)/2

91K

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

∑_{k=1}^{n} k = n(n+1)/2

100K

∑_{k=1}^{n} k = n(n+1)/2

50K

det| 4 9 ; 7 5 | = -43

det| 10 5 ; 4 11 | = 90

137K

AgNO₃ + NaCl → AgCl↓ + NaNO₃

197K

det| 1 1 ; 3 2 | = -1

det| 7 4 ; 4 8 | = 40

262K

2H₂ + O₂ → 2H₂O

196K

det| 12 9 ; 3 13 | = 129

∑_{k=1}^{n} k = n(n+1)/2

218K

\binom{n}{k} = \frac{n!}{k!(n-k)!}

299K

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