A ligand must have a lone pair of electrons to donate to the transition metal. Usually, drawing a Lewis structure is the best way to determine whether a compound has a lone pair. Draw the Lewis structure of BF₃. Can this molecule act as a ligand?

the potential energy of the reactants is 200j.

from the energy diagram, the energy of the product formed is 350j; this means that, this reaction is an endothermic reaction, because it absorbs energy from its environment.

i would say b

explanation:

but i think i would need more information than that

> b takes place in the gas phase in an isothermal tubular reactor. the feed is one mole of a per one mole of c, an inert. the entering temperature and pressure are 427°c and 10 atm, respectively. the gas constant r = 0.08206 atm · l/mol · k.