Answer :
Final answer:
Italian salad dressing is a heterogeneous mixture because its components, like oil, vinegar, and spices, do not mix uniformly and can be seen as separate layers (option a).
Explanation:
The student's question asks which option among Italian salad dressing, flat soda, Kool-Aid, brass, or none of the above is a heterogeneous mixture. A heterogeneous mixture is characterized by a composition that is not uniform throughout. For example, if we look at an oil and vinegar salad dressing as illustrated in Figure 1.10, it's a heterogeneous mixture because you can see distinct phases and the composition varies from one part of the mixture to another.
Now, to answer the student's question, the answer is a. Italian salad dressing. This is because, like oil and vinegar salad dressing, Italian salad dressing typically consists of various components such as oil, vinegar, herbs, and spices that do not mix uniformly, resulting in a mixture where different ingredients can be seen as separate layers or particles.
Hence, the answer is option a.
Final answer:
Italian salad dressing is a heterogeneous mixture because its composition is not uniform throughout, similar to the mentioned oil and vinegar salad dressing. So, the best answer is a, Italian salad dressing
Explanation:
The student is asking about the classification of mixtures, specifically which option is a heterogeneous mixture. A heterogeneous mixture is one that has a composition that is not uniform throughout. The given options are an Italian salad dressing, flat soda, Kool-Aid, brass, and none of the above. Using provided information, for example, Figure 1.13 which states that 'Oil and vinegar salad dressing is a heterogeneous mixture because its composition is not uniform throughout,' we can infer that Italian salad dressing, similar in composition to oil and vinegar, is also a heterogeneous mixture.
Thus the answer to the question is:
a. Italian salad dressing - Heterogeneous mixture
So, the best answer is a, Italian salad dressing
