Although all parts (postulates) of Dalton's atomic theory are ...

[sc00by25]

Although all parts (postulates) of Dalton's atomic theory are important, which one of the postulates is crucial to explain the observations summarized by the Law of Definite Proportions?
 
  A) Matter is composed of atoms.
  B) Atoms of the same element have the same properties.
  C) Atoms combine with other atoms in fixed, whole number ratios to form compounds.
  D) Atoms are very small.

Question 2

What is the molar mass of a compound X if 0.0400 moles weigh 21.6 g?
 
  A) 540
  B) 185
  C) 216
  D) 864

[EAN94]

Answer to Question 1

C

Answer to Question 2

A