Which set of compounds illustrates the Law of Multiple ...

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Which set of compounds illustrates the Law of Multiple Proportions?
 
  A) NH3, PH3, AsH3
  B) CH3, CF3, CCl3
  C) NH3, N2H4
  D) all of these

Question 2

Increasing the volume will ________.
 
  2NH3 (g) = N2 (g) + 3H2 (g)
  A) shift the reaction to the right
  B) shift the reaction to the left
  C) have no effect
  D) cannot be determined, since the temperature is unknown

Question 3

0.05 moles of a certain compound has a mass of 17.1 g. This compound may be ________.
 
  A) aluminum sulfate
  B) lead (II) chloride
  C) cobalt (III) oxide
  D) magnesium carbonate

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Answer to Question 1

C

Answer to Question 2

A

Answer to Question 3

A