Reaction timing: 1:20 Br2 Ge (Bromine and germanium) 3:34 Br2 Sb (Bromine and antimony) 5:58 Br2 Si (Bromine and silicon) 8:00 Br2 B (Bromine and boron) 8:53 BBr3 demonstration 9:17 Br2 P (Bromine and phosphorus) 9:59 PBr3 and PBr5 demonstration
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