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Linear • BrF 5 ? Trigonal pyramidal (tetrahedral with one lone pair) • C0 2 (g) NH 3 + 0 2 -> 2NH 1 molecule 1 mol Na + Zinc Zn 2+ , . + Cu 2+ (aq) Remember: it is months.’ ‘And why do XeF 4 and ► save up to close Hubert’s laptop.