7. Predict the sign of Asº for each of the following reactions:
dm (a) CaCO3(s) → CaO(s) + CO2(g)
9)
(b) CS2(1) CS2(g)
)
dms) (c) 2Hg() + O2(g) → 2HgO(s)
(d) 2Na2O2(aq) + 2H201) 4NaOH(aq) + O(g)
60gd (e) CO(g) + H2O(g)
→ CO2(g) + H2(g)​