Multiple Choice
Which of the following best describes a mixture in which the components remain distinct?
97
views
1. Intro to General Chemistry
Classification of Matter
Multiple Choice
Which of the following best describes coffee in terms of the classification of matter?
A
Coffee is a pure substance.
B
Coffee is an element.
C
Coffee is a homogeneous mixture.
D
Coffee is a heterogeneous mixture.
Verified step by step guidance1
Step 1: Understand the classification of matter. Matter can be classified as pure substances or mixtures. Pure substances include elements and compounds, while mixtures can be homogeneous or heterogeneous.
Step 2: Define a pure substance. A pure substance has a fixed composition and distinct properties. Elements consist of one type of atom, and compounds consist of two or more elements chemically combined in fixed ratios.
Step 3: Define mixtures. Mixtures contain two or more substances physically combined. Homogeneous mixtures have uniform composition throughout, while heterogeneous mixtures have visibly different parts.
Step 4: Analyze coffee. Coffee contains water, dissolved solids, and other compounds mixed physically but not chemically combined. Its composition is uniform throughout a typical cup, meaning it looks the same everywhere.
Step 5: Conclude the classification. Since coffee is a uniform physical blend of substances, it is best described as a homogeneous mixture rather than a pure substance, element, or heterogeneous mixture.
Related Videos
Related Practice
