Which of these statements is true?
A) The compositions of both mixtures and pure substances are variable.
B) The compositions of both mixtures and pure substances are fixed.
C) The composition of mixtures is variable, and the composition of pure substances is fixed.
D) The composition of mixtures is fixed, and the composition of pure substances is variable.
E) The compositions of both mixtures and pure substances can be fixed or variable.

Question

Quizplus · Accepted Answer

The composition of mixtures can vary as they are made up of two or more substances combined in any proportion. On the other hand, the composition of pure substances like elements and compounds is fixed and has specific chemical properties. Thus, option C is the correct answer.

Which of These Statements Is True