Which of the following best describes the difference between a mixture and a pure substance?
A. A mixture is made up of more than one type of atom; a pure substance is made up of only one type of atom.
B. A mixture has the same properties throughout; a pure substance has the different properties throughout.
C. A mixture has different properties throughout; a pure substance has the same properties throughout.
D. A mixture is made up of only one type of atom; a pure substance is made up of more than one type of atom.
That looks ok to me.
The correct answer is C. A mixture has different properties throughout; a pure substance has the same properties throughout.
To arrive at this answer, we need to understand the differences between a mixture and a pure substance. Here's how you can differentiate between the two:
1. A mixture is made up of two or more substances mixed together, while a pure substance is made up of only one type of substance.
2. Mixtures can be separated into their individual components using physical methods such as filtration, distillation, or chromatography. Pure substances cannot be separated by physical means.
3. Mixtures can have varying compositions and properties throughout, while pure substances have the same properties throughout.
By considering these points, we can conclude that option C is the correct choice.