Multiple Choice
Which criterion is most commonly used to distinguish a colloid from a suspension in the classification of matter?
84
views
1. Intro to General Chemistry
Classification of Matter
Multiple Choice
Which of the following terms are used to identify pure substances in chemistry?
A
Homogeneous and heterogeneous
B
Mixture and solution
C
Solvent and solute
D
Element and compound
Verified step by step guidance1
Step 1: Understand the definition of a pure substance in chemistry. A pure substance has a fixed composition and distinct properties, and it cannot be separated into other substances by physical means.
Step 2: Recognize that pure substances are classified as either elements or compounds. Elements consist of only one type of atom, while compounds consist of two or more elements chemically combined in a fixed ratio.
Step 3: Review the other terms given: 'homogeneous and heterogeneous' describe types of mixtures based on uniformity; 'mixture and solution' refer to combinations of substances that can be separated physically; 'solvent and solute' describe components of a solution, not pure substances.
Step 4: Conclude that the terms 'element and compound' correctly identify pure substances because they represent substances with fixed compositions and unique chemical identities.
Step 5: Summarize that identifying pure substances involves recognizing that they are either elements or compounds, distinct from mixtures or solutions.
Related Videos
Related Practice
