EBK FOUNDATIONS OF COLLEGE CHEMISTRY
15th Edition
ISBN: 9781118930144
Author: Willard
Publisher: JOHN WILEY+SONS INC.
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Question
Chapter 1, Problem 13RQ
Interpretation Introduction
Interpretation:
The system which contains two or more substance is necessarily heterogeneous. This has to be explained.
Concept introduction:
Mixture:
A mixture always contains two or more substances that can be present in varying amounts. The components of a mixture do not lose their identities and may be separated by physical means. There are two types of mixture,
- Homogeneous mixture
- Heterogeneous mixture
Homogeneous mixture:
Homogenous mixture consist of a single phase be it liquid, gas, or solid the chemical composition is the same for any sample of the mixture.
Heterogeneous mixture:
Heterogeneous mixture consist of different phase are not uniform they will not have an identical composition.
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What is Heterogeneous substance? Give an example?
114. Classify each as a pure substance or a mixture. If it is a pure
substance, classify it as an element or a compound. If it is a
mixture, classify it as homogeneous or heterogeneous.
(a)
(b)
(c)
(d)
“A mixture is the chemical bonding of two or more substances in any proportion.” Is this statement true or false? Explain.
Chapter 1 Solutions
EBK FOUNDATIONS OF COLLEGE CHEMISTRY
Ch. 1.1 - Prob. 1.1PCh. 1.4 - Prob. 1.2PCh. 1 - Prob. 1RQCh. 1 - Prob. 2RQCh. 1 - Prob. 3RQCh. 1 - Prob. 4RQCh. 1 - Prob. 5RQCh. 1 - Prob. 6RQCh. 1 - Prob. 7RQCh. 1 - Prob. 8RQ
Ch. 1 - Prob. 9RQCh. 1 - Prob. 10RQCh. 1 - Prob. 11RQCh. 1 - Prob. 12RQCh. 1 - Prob. 13RQCh. 1 - Prob. 14RQCh. 1 - Prob. 15RQCh. 1 - Prob. 16RQCh. 1 - Prob. 1PECh. 1 - Prob. 2PECh. 1 - Prob. 3PECh. 1 - Prob. 4PECh. 1 - Prob. 5PECh. 1 - Prob. 6PECh. 1 - Prob. 7AECh. 1 - Prob. 8AECh. 1 - Prob. 9AECh. 1 - Prob. 10AECh. 1 - Prob. 11AECh. 1 - Prob. 12AECh. 1 - Prob. 13AE
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- If the combination of iron filings and sulfur in Question 25 is heated strongly, the iron reacts with the sulfur to form a solid that is no longer attracted by the magnet. Would this still represent a “mixture”? Why or why not?arrow_forwardSeawater is composed of salt, sand, and water. Is seawatera heterogeneous or homogeneous mixture? Explain.arrow_forwardTrue or False: Substances maintain their identity in a heterogeneous mixture but not in a homogeneous mixture.arrow_forward
- Milk is homogeneous mixture and not a compound. Explain this statement.arrow_forwardWhy a piece of wood is a mixture?arrow_forward5. When a substance changes from a liquid to a solid, which of the following is TRUE? The molecules of the substance get heavier. The molecules of the substance change shape. The molecules of the substance move further away from each other. The molecules of the substance connect more strongly to one another.arrow_forward
- Classify substance as a pure substance or a mixture. If it is a pure substance, classify it as an element or a compound. If it is a mixture, classify it as homogeneous or heterogeneous. ALUMINIUMarrow_forward7. Classify each of the following statements as true of false. a. Heterogeneous mixtures must contain three or more substances. b. Compounds cannot have a variable composition. C. Elements are seldom encountered in the "everyday" world. 8. Classify each of these substances as an element, compound, or mixture. a. a sample of "laughing gas" (N₂O) b. the steam coming from a pan of boiling water a bar of deodorant soap C. d. a sample of copper e. f. g. a cup of mayonnaise the helium filling a balloon a. CO h. Co 9. Classify each of the following as a homogeneous mixture or heterogeneous mixture. Black coffee b. A teaspoon of sugar dissolved in a cup of coffee C. Lemonade (with pulp) d. Chocolate chip cookiearrow_forwardWhat is the difference between a heterogeneous and a homogeneous material?arrow_forward
- What is Homogeneous substance? Give an example?arrow_forwardAir consists of mainly N₂ and O2, plus CO2 and other impurities. Air is classified as a pure element a homogeneous mixture a heterogeneous mixture an impure element a compoundarrow_forwardis when two or more substances are mixed evenly. is a combination of substances that are not bonded togathe is matter that has the same fixed composition and properties mixture is when a substance is not mixed evenly, a 1. Substane 2. Water (H20) is known as a 3. А and can be separated by physical processes. 4. A 5. Another name for a homogenous mixture is a 6. A substance that seems to dissolve or disappear is a substances that dissolves is known as the , while 7. What are the three types of solutions? 1. 2. 3. 8. In a solution, water is the solvent. bonds bonds share electrons, while in 9. where compounds form, electrons are gained or lost. 10. The measurement that describes how much solute dissolves in a given amount of solvent is known as 11. The amount of solute compared to the amount of solvent is known as its is a substance that releases positively charged hydrogen ions. 12. Anarrow_forward
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