Which of these is an example of a physical property? A: The fact that iron rusts
B: The texture of a piece of chocolate
C: The effect of acid rain on automobiles
D: The fact that gasoline in a car engine combusts

What two factors can affect the properties of a hydrocarbon? a. the number of its carbon atoms and the number of single bonds b. the number of its carbon atoms and the arrangement of its atoms c. the arrangement of its atoms and the number of its double bonds