Chemistry homework question on HBr decomposition, asking to calculate grams of Br₂ formed from 29.5 grams of HBr and 0.4 grams of H₂.
Screenshot of a chemistry homework question from Cengage Learning's OWLv2 platform, showing a problem about the decomposition of HBr into H₂ and Br₂, with a prompt to calculate the mass of Br₂ formed using the law of conservation of mass.