Answer 8.0 L.
2.0L / 5.0 moles = x / 20.0 => x = 20 / 5 * 2 = 8
Mass, if you know what element you are working with.
Answer:
It is traveling at 170 miles per hour.
Explanation:
divide 340 by 2 because right now it's at 340 miles per two hours.
You get 170 miles per hour.
I think it’s C but I’m not sure