Hydrocarbons containing one or more benzene rings are known as ...

[littleanan]

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

[stano32]

Answer to Question 1

a

Answer to Question 2

b

[littleanan]

Thanks for the timely response, appreciate it

[AngeliqueG]

Gracias!