Answer:
D is not the a vector quantities
(50 gal / 5 min) x (.0037854 m³/gal) x (1 min / 60 sec)
= (50 · 0.0037854 · 1) / (5 · 60) m³/sec
= 0.000631 m³/sec
Carbon monoxide is a mixture cause it's a mixture of
different chemical compounds
such as air and CO but they're chemically mixed together which makes it no longer pure
