Which is an example of a homogeneous mixture?
A) chocolate chip cookie
B) a rock collection
C) sugar water
D) oil & vinegar salad dressing
The correct answer and explanation is :
The correct answer is C) sugar water.
Explanation:
A homogeneous mixture is a mixture in which the components are uniformly distributed, meaning that the individual substances are not distinguishable from one another. In such mixtures, the composition is consistent throughout, and no single part of the mixture stands out as being different from another. Homogeneous mixtures are often referred to as solutions.
Now, let’s break down the choices:
- A) Chocolate chip cookie: This is not a homogeneous mixture. A chocolate chip cookie is a heterogeneous mixture because you can clearly distinguish the individual components, such as the chocolate chips, dough, and other ingredients. Each bite of the cookie may have a different distribution of these components.
- B) A rock collection: This is also a heterogeneous mixture. A rock collection consists of various types of rocks, which have different compositions, colors, and textures. Each rock in the collection is visibly distinct from the others.
- C) Sugar water: This is a homogeneous mixture. When sugar dissolves in water, it forms a solution where the sugar is uniformly distributed throughout the water. The sugar particles are so small that you cannot distinguish the sugar from the water with the naked eye. The composition of sugar water is consistent throughout, making it a classic example of a homogeneous mixture.
- D) Oil & vinegar salad dressing: This is a heterogeneous mixture. Oil and vinegar do not mix uniformly. Instead, they separate into two distinct layers, with oil floating on top of the vinegar due to differences in their densities. You can easily see the separation, so it is not a homogeneous mixture.
In conclusion, sugar water is a homogeneous mixture because the sugar dissolves completely and uniformly in the water, forming a single, consistent solution throughout.