2. Predict the sign of AS° for each reaction. а. АВ2(g) + A(s) —> 2AB(g) b. 2AB2(g) + B2(g) → 2AB3(g) с. А(s) > Аz() d. 2HA(aq) + Mм(s) > Н2(g) + МA-(аq)

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