Petroleum ________. A) is mostly a mixture of compounds that ...

[B]

Petroleum ________.
 
  A) is mostly a mixture of compounds that are composed of carbon and hydrogen
  B) is mostly a mixture of compounds that are covalent
  C) is the source of many polymers, fertilizers, insecticides, and plastics
  D) All of the above apply to petroleum.

Question 2

A conjugate acid-base pair differ by one
 
  A) H atom.
  B) O atom.
  C) pH unit.
  D) proton.

[tsternbergh47]

Answer to Question 1

D

Answer to Question 2

D

[B]

Wow, this really help

[jojobee318]

Excellent