Author Question: Hydrocarbons containing one or more benzene rings are known as a) aromatic hydrocarbons. b) ... (Read 78 times)

littleanan · **on:** Jul 28, 2018

Hydrocarbons containing one or more benzene
rings are known as
a) aromatic hydrocarbons.
b) cycloalkane hydrocarbons.
c) aliphatic hydrocarbons.
d) synthetic hydrocarbons.

Question 2

A rocket engine consumes 450 kg of fuel per minute. If the exhaust speed of the ejected fuel is 5.2 km/s, what is the thrust of the rocket?
a. 42 kN
b. 39 kN
c. 45 kN
d. 48 kN
e. 35 kN