A Halogen is a group (or a column) on the periodic table. It contains fluorine, chlorine, bromine, and astatine!
Answer: OC
Explanation:
The Others Could Take Many Millions Of Years
I'm not sure, but maybe burning point...
(a)The change in Gibbs free energy for the reaction has been 2.6 kJ/mol.
(b) The change in Gibbs free energy for the reaction has been -49.3 kJ/mol.
(c) The change in Gibbs free energy for the reaction has been 91.38 kJ/mol.