What was the first synthetically enhanced polymeric hydrocarbon ...

[clmills979]

What was the first synthetically enhanced polymeric hydrocarbon extensively utilized for its material properties?
 
  A) rubber
  B) vulcanized-rubber
  C) nylon
  D) nitrocellulose
  E) none of the above

Question 2

At what point will a buffer solution cease to moderate changes in pH?
 
  A) when waters equilibrium constant has been reached
  B) when the weak acid and the weak base salt concentration are equal
  C) when the acting buffering component is all neutralized
  D) only after all the acid or the base that needs to be buffered has been added

[morrie123456]

Answer to Question 1

B

Answer to Question 2

C

[clmills979]

Wow, this really help

[ktidd]

Excellent