AP Chemistry : Composition of mixtures
Study concepts, example questions & explanations for AP Chemistry
All AP Chemistry Resources
Example Questions
Example Question #1 : Composition Of Mixtures
Which of the following mixtures is not a homogeneous mixture:
Tea
Coffee
Wine
Oil and vinegar
A table salt solution
Oil and vinegar
A homogeneous mixture is a uniform mixture of two or more components that appears uniform throughout. The oil and vinegar mixture would not appear uniform, and thus is a heterogeneous mixture.
Example Question #2 : Composition Of Mixtures
Which of the following is a heterogeneous mixture.
Orange juice with no pulp
All of the above
Motor oil
Oatmeal chocolate chip cookie
Gasoline
Oatmeal chocolate chip cookie
A heterogeneous mixture is a mixture of two or more components that do not appears uniform throughout. The oatmeal chocolate chip cookie mixture would not appear uniform, and thus is a heterogeneous mixture.
Example Question #2 : Atomic Structure And Properties
Which of the following are mixtures
Distilled water
Reeses Peanut butter cup
b and c
Top soil
All of the above
b and c
A mixture contains two or more different substances. Distilled water only contains liquid water, and is not a mixture.
Example Question #3 : Composition Of Mixtures
What differentiates a homogeneous mixture from a pure substance?
A pure substance can be separated into elements by physical means.
A homogeneous mixture is uniform throughout.
A mixture has a defined composition.
The composition of a pure substance is fixed.
A pure substance is always a compound while mixtures can be elements or compounds.
The composition of a pure substance is fixed.
A heterogeneous mixture is a mixture of two or more components that do not appears uniform throughout. A pure substance contains only one component that has a fixed composition.
Example Question #4 : Composition Of Mixtures
A slice of watermelon would best be described as?
A heterogeneous mixture of compounds
A homogeneous mixture of compounds
A pure compound
A heterogeneous mixture of elements and compounds
None of the above
A heterogeneous mixture of elements and compounds
A heterogeneous mixture is a mixture of two or more components that do not appears uniform throughout, but contains components that are elemental (single atom type) and compounds (contain two or more different elements).
All AP Chemistry Resources
