Multiple Choice
Which of the following is not a domain in the classification of matter?
1. Intro to General Chemistry
Classification of Matter
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Which of the following classifications of matter includes all the others?
A
Compound
B
Mixture
C
Element
D
Substance
Verified step by step guidance1
Begin by understanding the definitions of each term: Compound, Mixture, Element, and Substance.
A 'Compound' is a substance formed when two or more elements are chemically bonded together. For example, water (H₂O) is a compound made from hydrogen and oxygen.
A 'Mixture' is a combination of two or more substances where each substance retains its own chemical identity. Mixtures can be homogeneous (uniform composition) or heterogeneous (non-uniform composition).
An 'Element' is a pure substance consisting of only one type of atom. Elements are the simplest form of matter and cannot be broken down into simpler substances by chemical means.
A 'Substance' is a form of matter that has a uniform and definite composition. It includes both elements and compounds, but not mixtures. Therefore, 'Substance' is the classification that encompasses all others, as it includes both elements and compounds.
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