Is gasoline an element compound solution or heterogeneous mixture?

Which of the following statements are incorrect?

Select the correct answer. wax is a nonpolar substance. in which type of substance is it the most soluble?

An engineer decides to use a slightly weaker material rather than a stronger material, since she knows that the stronger material can break suddenly. this is an example of what? a choosing a material that will show warning before it fails b using composite materials that combine strength c using a material for multiple applications d using design techniques that increase efficiency and reduce cost