This is because butterfly caterpillars are host specific. Plant-wise, the caterpillars of some butterfly species like asters, black-eyed Susan, clover, lupines, milkweed, sedum or violets. Aspen, birch, cherry, hackberry, oak or willow trees make caterpillars of other butterfly species equally happy.
each Br-F bond would be polar or BF4-, there is an extra electron making this a polar molecule. PCl5 has the Cl atoms that must be as far apart from each other as possible and therefore would create equal but opposite pulls.ach Br-F bond would be polar or BF4-, there is an extra electron making this a polar molecule. PCl5 has the Cl atoms that must be as far apart from each other as possible and therefore would create equal but opposite pulls.
sp3d2, this accounts for all 6 electron domains found around the central Br atom. Verify by checking the Lewis dot configuration. Br has 4 bonded electron domains and 2 lo â¦ ne pairs.Therefore the hybridization of the central atom in BrF4 is sp3d2.Se2 has Lewis structure like this: Se=C=Se (here are valence e-around the Se too, but no need to worry about these), Since it is considered that there are 2 bonds the shape â¦ would be linear.