Which element(s) is/are not balanced in this equation?

pb(no3) + 2 kci ⇒ pbci2 + kno3

a. n and o
b. pb, n, o
c. k, n, and o
d. k

> 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.

they vary. it used to be meat, grain, bread, candy, beverages, donuts, and fruits/vegetables. now they added exercise in.