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Concept explainers
(a)
Interpretation:
The categorization of an iron ore as an element, compound, homogeneous mixture, or heterogeneous mixture is to be done.
Concept introduction:
An element is defined as a substance which does not undergo further decomposition by a
Homogeneous mixtures are the mixtures which have a definite proportion of components throughout the mixture. They exhibit the uniformity with respect to their components.
Heterogeneous mixtures are made up of different components with variation in the composition of components. They are non-uniform mixtures.
(b)
Interpretation:
The categorization of an iron oxide as an element, compound, homogeneous mixture, or heterogeneous mixture is to be done.
Concept introduction:
An element is defined as a substance which does not undergo further decomposition by a chemical reaction. On the other hand, the breaking of a compound can be done into elements by a chemical reaction as it is made up of two or more elements.
Homogeneous mixtures are the mixtures which have a definite proportion of components throughout the mixture. They exhibit the uniformity with respect to their components.
Heterogeneous mixtures are made up of different components with variation in the composition of components. They are non-uniform mixtures.
(c)
Interpretation:
The categorization of an iron metal as an element, compound, homogeneous mixture, or heterogeneous mixture is to be done.
Concept introduction:
An element is defined as a substance which does not undergo further decomposition by a chemical reaction. On the other hand, the breaking of a compound can be done into elements by a chemical reaction as it is made up of two or more elements.
Homogeneous mixtures are the mixtures which have a definite proportion of components throughout the mixture. They exhibit the uniformity with respect to their components.
Heterogeneous mixtures are made up of different components with variation in the composition of components. They are non-uniform mixtures.
(d)
Interpretation:
The categorization of an iron alloy as an element, compound, homogeneous mixture, or heterogeneous mixture is to be done.
Concept introduction:
An element is defined as a substance which does not undergo further decomposition by a chemical reaction. On the other hand, the breaking of a compound can be done into elements by a chemical reaction as it is made up of two or more elements.
Homogeneous mixtures are the mixtures which have a definite proportion of components throughout the mixture. They exhibit the uniformity with respect to their components.
Heterogeneous mixtures are made up of different components with variation in the composition of components. They are non-uniform mixtures.
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Chapter 3 Solutions
Introductory Chemistry: Concepts and Critical Thinking (8th Edition)
- Write a brief description of the relationships among each of the following groups of terms or phrases. Answers to the Concept-Linking Exercises are given at the end of the chapter. Homogeneous, heterogeneous, pure substance, mixturearrow_forwardSeawater is composed of salt, sand, and water. Is seawatera heterogeneous or homogeneous mixture? Explain.arrow_forwardState the term that applies to each of the following changes of physical state: (a) Snow changes from a solid to a liquid. (b)Gasoline changes from a liquid to a gas. (c) Dry ice changes from a solid to a gas.arrow_forward
- Which of the following is the correct description of theinside of a grapefruit?(a) It is a pure compound.(b) It consists of a homogeneous mixture of compounds.arrow_forwardClassify each of the following as element, compound, or mixture. (a) air (b) iron (c) soy sauce (d) table saltarrow_forwardA substance has a definite shape and definite volume. What is the state of the substance?(a) solid (b) liquid (c) gasarrow_forward
- Indicate wether each of the following samples of matter is a heterogenous mixture, homogenous mixture a compound or an element. a) A colorless gas, only part of which reacts with hot ironarrow_forwardWhich of the following is a solid metal under normal conditions: calcium, phosphorus, mercury, or silicon?arrow_forwardWhich of the following is a liquid nonmetal under normal conditions: sodium, mercury, -bromine, or sulfur?arrow_forward
- Which of the following is the correct description of theinside of a grapefruit?(a) It is a pure compound.(b) It consists of a homogeneous mixture of compounds (c) It consists of a heterogeneous mixture of compounds.(d) It consists of a heterogeneous mixture of elements andcompounds.(e) It consists of a single compound in different states.arrow_forwardWhich of the following is not an example of a homogeneous mixture? Select any that apply: - Sugar completely dissolved into water - Air - Oil and Water - Pure Sodium Chloridearrow_forwardAll molecules attract each other to some extent, and the attraction decreases as the distance between particles increases. Base on this idea, which state of matter would you expect has the stronges interaction between particles: solid, liquid or gasses?arrow_forward
- Chemistry: Matter and ChangeChemistryISBN:9780078746376Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl WistromPublisher:Glencoe/McGraw-Hill School Pub CoIntroductory Chemistry: An Active Learning Approa...ChemistryISBN:9781305079250Author:Mark S. Cracolice, Ed PetersPublisher:Cengage LearningGeneral, Organic, and Biological ChemistryChemistryISBN:9781285853918Author:H. Stephen StokerPublisher:Cengage Learning
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