How many of the following processes would be exothermic (ΔH < 0)?
HCl (g) → H (g) + Cl (g)
Br (g) + Br (g) → Br 2 (g)
KI (s) → K + (g) + l - (g)
CO2 (g) → CO (g) + O (g)
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Our tutors have indicated that to solve this problem you will need to apply the Endothermic & Exothermic Reactions concept. If you need more Endothermic & Exothermic Reactions practice, you can also practice Endothermic & Exothermic Reactions practice problems.
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