Two or more substances in variable proportions, where the ...

[ETearle]

Two or more substances in variable proportions, where the composition is variable throughout are considered
 
  A) a solution.
  B) a homogeneous mixture.
  C) a compound.
  D) an amorphous solid.
  E) a heterogeneous mixture.

Question 2

Two or more substances in variable proportions, where the composition is constant throughout are considered
 
  A) a compound.
  B) an element.
  C) a heterogeneous mixture.
  D) a homogeneous mixture.
  E) a crystalline solid.

[FergA]

Answer to Question 1

E

Answer to Question 2

D