Since the 1960s, as a result of automobile modifications (as well as other factors), carbon monoxide emissions in the U. S. have declined by more than three-fourths and emissions by more than 95 percent.

a. nitrogen and oxygenated
b. sulfur dioxide and bicarbonate
c. hydrocarbon and sulfur dioxide
d. nitrogen oxide and hydrocarbon
e. nitrogen hydroxide and oxygen

the answer is 1260

you spend 7 hours in school for 1 school day with 5 school days in 1 school week with 36 school weeks in a school year.

7*5*36= 1260 it's all about multiplying

> 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.