Déterminer l'équation thermique du mécanisme de réaction suivant: AH = +811,3 kJ
H2SO4 → H2(g) + Sis) + 2 029 )
1
H2ie
2
→ H₂O
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+
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AH = -241,8 kJ
S(s) + O2(g
SO2le
AH = -296,1 kJ

Explain why scientists use shared characteristics to make cladograms.

Calculate the number of molecules present in 0.750 mol of mgo.

For each of the following compounds, decide whether the compound's solubility in aqueous solution changes with ph. if the solubility does change, pick the ph at which you'd expect the highest solubility. you'll find ksp data in the aleks data tab. compounds does solubility change with ph