What decimal power does the abbreviation nano represent? A) 1 ...

[sarasara]

What decimal power does the abbreviation nano represent?
 
  A) 1  106
  B) 1  109
  C) 1  10-1
  D) 1  10-9
  E) 1  10-12

Question 2

Under appropriate conditions, nitrogen and hydrogen undergo a combination reaction to yield ammonia: N2 (g) + 3H2 (g)  2NH3 (g) A 7.1-g sample of N2 requires ________ g of H2 for complete reaction.
 
  A) 0.51
  B) 0.76
  C) 1.2
  D) 1.5
  E) 17.2

Question 3

Which antibacterial drug interferes with the formation of cell walls in bacteria?
 
  A) sulfa drugs
  B) penicillin
  C) tetracyclines
  D) PABA

[Hdosisshsbshs]

Answer to Question 1

D

Answer to Question 2

D

Answer to Question 3

B

[sarasara]

Gracias!

[bassamabas]

Excellent