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:
Wine
Tea
A table salt solution
Coffee
Oil and vinegar
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.
Motor oil
Oatmeal chocolate chip cookie
Orange juice with no pulp
All of the above
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 #3 : Composition Of Mixtures
Which of the following are mixtures
All of the above
Distilled water
Top soil
Reeses Peanut butter cup
b and c
b and c
A mixture contains two or more different substances. Distilled water only contains liquid water, and is not a mixture.
Example Question #4 : Composition Of Mixtures
What differentiates a homogeneous mixture from a pure substance?
A pure substance can be separated into elements by physical means.
A mixture has a defined composition.
The composition of a pure substance is fixed.
A homogeneous mixture is uniform throughout.
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 #5 : Composition Of Mixtures
A slice of watermelon would best be described as?
None of the above
A pure compound
A homogeneous mixture of compounds
A heterogeneous mixture of compounds
A heterogeneous mixture of elements and compounds
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
